I love how he gets right to the point and you don't have to try to skip ahead to locate useful information. Some of these guys think we have nothing better to do all day.
So helpful hearing the sounds associated with each issue. Thanks for taking the time to shoot and post this video. I'm relieved to learn that the popping sound is normal.
You are welcome Danielle, we're glad you found the video and audio examples helpful! We try to make all our videos as straight forward as this one. If you're interested, here's a video we made on Electricity and Multimeter basics. Its good information for anyone to know to better understand how electricity works. th-cam.com/video/r_migcta_Is/w-d-xo.html
This has got to be one of the best TH-cam videos I've ever seen on diagnosing an issue. Very clear language and sound samples (I very well may have a belt issue). I've been around the TH-cam block for a long time and have uploaded my own DIY videos. Great job AMRE Supply!!
Thank you! We put a lot of effort into making our videos informative and easy to follow so its great to get a comment like this. We're glad that you found it helpful!
Thank you for the video. Disassembled my fan cleaned it up and tightened all bolts and set screw, put it back together and everything is running great. No shaking or noise.
What a GREAT video! Thank you so much for taking the time to do this! Single mom here, so it really helped that you included the sounds! I’m about to strap on my (pink!) nail apron, bundle up and head up to my attic to see if I can repair what’s causing the racket! I’m hoping it will just require the tightening of bolts! 🤞🏽 Stay tuned and thanks again! 👍🏽
Thanks for the hints. I just fixed the noise in my furnace by adjusting a few bolts. None of them was noticeable loose, but tightening all of them (including the blower) did the trick. Thanks!
You're welcome Jorge, we're happy you found the video helpful! In a lot of cases vibration can add up when something is rotating 1000 times a minute, and in general it doesn't hurt to tighten up each bolt. Glad it did the trick!
I am so relieved to hear the banging my furnace makes is not a problem.. Thank you so much for your troubleshooting all furnace issues getting to the point. You could teach many how to do a successful video 👏 Have a beautiful day 🌞
I just moved into an old home and the blower was in a really disgusting and loud state. I cleaned all the bolts including the centre one mentioned here and it's making soooo much less noise. Thanks so much for the context here, working on furnaces as a homeowner can be daunting.
Thanks for watching. We're glad that the video helped you out! As a homeowner there is a lot to take care of, one video that you might find helpful is this one on Multimeters and electricity basics: th-cam.com/video/r_migcta_Is/w-d-xo.html It can be a good review and help fill in the blanks as well. This video goes over appliance components which is a good overall introduction t what you'll need to test if something fails.: th-cam.com/video/e_1pOWSVUfg/w-d-xo.html
@@AmreSupply Based on your video, I assumed it was a belt issue, so I went to check. Turns out we have a direct drive blower motor and the whole motor has to be replaced. 🙃
@@Studio23Media Thanks for the update, the motor isn't too difficult to replace. You might find these 2 videos helpful when replacing the motor. How to replace motor & capacitor: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html How to find a matching motor: th-cam.com/video/TF3QtXWd8s0/w-d-xo.html
Thanks for showing the location of the blower fan. I had huge grinding noise and as it turns out one of the sticker labels inside the furnace came off and got sucked into the blower making grinding noises. I removed the torn pieces of paper from the blower and the noise was gone. I recommend spinning the blower manually first to see if the noise come from there
This is great! Sound samples are tremendously helpful. Here in NW Montana, where I woke up to -30F this morning, I really like when this thin-walled camper's furnace runs properly. But it does not always run well. Sometimes it start off rough, wobbly or rattly, lower RPM, and no heat. After a few seconds to a few minutes the motor goes steady and smooth, just normal hum and air noise, then a few seconds later the ignition kicks in and I have heat. But sometimes it'll start off rough and stay that way no matter how long I wait, blowing cold outdoor air into my formerly comfy living space. Waking up to 40degF and a noisy blower at 3am is not fun. Maybe thumping the exhaust port or the main housing of the furnace will cause it to run smooth. From other videos and articles I know about the sail switch, which explains why there's no heat during the wobbly/rattly phase, and it all works fine once the motor goes steady at full RPM. So, do I need a new motor or could a bit of oil or some other cheap easy method fix this?
Thanks for watching. Not all motors can be easily lubricated with oil, and not all motors have the ability to be adjusted. It could be that the motor bearings are starting to wear down. We don't have any videos or guides on RV furnaces or adjustments so I can't point you to any other resources directly. Before replacing a motor, check to make sure all the switches are good, and that the airflow does not have any restrictions. Those can change the operation. Hope this helps!
Best video ever! Clear and informative. My furnace fan sounds a bit off balance on the low setting. On high it smooths out it seems. Weird. Not sure what's going on
Thanks for watching. It's worth still checking the alignment and seeing if you can tighten any of the mounting screws. At higher speeds there is a centering effect. Not sure of the exact physics behind this but i think it would be similar to how a bicycle is less stable when you try to slow down past a certain point. To access the blower fan you can see more steps in this video: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Thank you, spot on..., had my wheel cleaned by AC company and that’s when squeaky noise happen .🤨🤨🤨. No, they are trying to act like I need a new system, NO I DONT... they have been servicing it for 5yrs. Yes my system is 20yrs old, but it kicks air and heat great, ☺️even before it was cleaned. Thanks.
Hi Taneda, Thanks for watching and sharing your experience! We're glad that your furnace is still running smoothly after 2 decades. Were you able to narrow down and fix the noise?
I had a similar issue on a motor I replaced about a year ago. I tightened everything up and it stopped for about a day, then started up gain. I'm not sure if t hings loosened back up, or if removing and replacing the blower motor stopped some other issue.
Thank you! We thought the example noises would be helpful and we did the same thing for our Refrigerator Noises troubleshooting video: th-cam.com/video/E8sWROIVWbs/w-d-xo.html
ill probably mostly call somebody if i have problems with my heater but its amazing the wealth of teaching info online. thank you, im learning tons about how heaters work 😂 kinda awesome. or furnace is that the correct term 🤣 not heater. furnace lol.
Thanks for watching, we're just happy that you found the video helpful! If you're curious we have a "how it works" playlist that has a lot of great animations: th-cam.com/play/PLCo9SMjkdWBxWwrWCmzvRMSi2kLo9bGdp.html
Thanks we're glad you found the video helpful and we're happy to have gained another subscriber! Keep in mind we have many other troubleshooting videos as well including a complete series on water heaters: th-cam.com/video/BHUPFLbb8NY/w-d-xo.html Cheers!
Thank you for this excellent video. I was able to trace the problem down to a broken belly band on my blower motor. Unfortunately I didn't know the "hamster wheel" had weights that were thrown off, which is what I'm told is causing the continued shaking noise, but at least I have heat!
You're welcome Dave we're glad you found the video helpful. Are you saying that there were additional weights on the blower wheel that fell off and now the blower wheel is unbalanced? If so you could try spinning the blower wheel slowly by hand to try to determine the balance. Just observe where the blower wheel starts turning under its own weight as this will help you determine the heavy side of it. Just put the weights opposite to that side of the blower wheel.
Thanks for watching. This would depend on where you are hearing the sound from. It could be a rumble from the motor or blower wheel. Tightening the screws on the mounting bracket could reduce that sort of noise.
I just had a new Coleman AC and Air Handler if I’m saying it right, put in today 10/7/2021 and it is so noisy coming through my vents and also the unit outside so I wanted to come on TH-cam before I call the company back. Thanks for your video.
Did you find your answer I'm having the same issue, my furnace is a two-stage furnace I guess and I was told maybe the fan speed should be lowered but it sounds like a rocket ship taken off it works fine there's no issue there but it's just really loud, is this similar to your issue if so if you find your issue out would you let me know please
@@liamoconnor9017 Hi Brian, I have not, I just got back in town and the owner of the AC Company said my fan may just need to be turned down a little, he said when my house was built they put a 3 ton unit in and now I upgraded to a 3 1/2 ton unit so it’s blowing stronger, but I told him I asked you can my house take a 3 1/2 ton and you said yes for sure. I said you didn’t tell me if I upgraded it will be loud 🤨😩 so I will see if the help when he come some time this week. But Brian it’s my fault 🤦🏽♀️ because I was so hot 🥵 in my house for 3 days without air I couldn’t do my research on the Coleman brand before hand and after it was install I read that people always having problems with the parts and it’s very noisy. I will try and remember this video to come back and let you know how it worked out.
@@nellielee2915 ok thank you I was told something similar, that's what I'm going to be having done here in a another few weeks as I live in Canada Ontario and it's going to start getting cool I'll let you know if it helps out take care and thank you
Thanks for watching. Its hard to say exactly. Each furnace will sound different and the overall loudness depends on the furnace location, the model and how your home is built. Furnaces in an isolated room will be more muted than an unfinished basement. Having ceiling tiles in a basement will also muffle the sound through the vents. It is possible that your furnace motor is oversized for the load. A furnace tech might be able to rewire the motor to run at a different speed that is more appropriate to what your home needs.
@@AmreSupply Thanks for responding, and I understand you right those things will make a difference, my AC guy did say since my house was built for a 3 ton and I upgrade too a 3.5 ton but, he said he will come to find out why, and he also said he could turn the fan down but I will see when he comes.
Great video, I'm having some furnace problems myself. My furnace is not blowing hot air is just blowing air also the fan sends to be blowing in what I can only describe as a breathing pattern where it blows hard and then soft. Thanks.
Hi Jaime, thank you for watching. We have a video that talks about a furnace that only blows cold air. Its worth a watch to double check a few things first: th-cam.com/video/XrxV6I8C4yY/w-d-xo.html
Thank you so much. You resolve my problem. I thought it was something more serious. It im hearing like a boom or popping noise that continues and it stops. Also notist the belt it's ripping off i just text the owners but they ignore me.
Great video and good information. However my hvac system is noisy in a different way. It's loud only as it starts up or whines up. Any idea what could be this problem?
Thanks for watching, we're glad you found it helpful. Some sounds are related to the RPM of the motor. As the blower motor is starting to spin you might be hearing the bearings rub, or it could be an imbalance in the blower whee. As it gets up to speed, it becomes more balanced and the sound goes away.
Thanks for sharing this video. Moral of the story is my unit needs a new motor based on what I’m hearing smh. What frustrates me is we purchase our home 10yrs, brand new construction. The unit installed was a Carrier. Within 10yrs the motor has been replaced twice and other issues with the carrier unit. We get our unit serviced annually! At our previous home we had a Trane unit, we had that unit for over 16yrs not once did the motor, compressor, condenser NOTHING major ever went wrong with that Trane AC unit other a clogged drain that’s it. This Carrier unit we have at our current home is a nightmare
Thanks for watching, we're glad that you found the video helpful. Because of the differences between models and installations it is difficult to predict what will fail over time, but any grinding noise or bearing sound is a strong indicator that the motor needs to be replaced.
Don't know why I just subscribed. But the video is so well made and the guy is so charming. As a straight man, how can I be mesmerized by another man?!
Great video. I have an odd noise coming from my air handler when running that can be heard throughout the house that I would describe as a tuning fork, or like rubbing a finger on the top of a wine glass. I haven't been able to pinpoint what exactly is making the noise.
Thanks for watching. You could observe the startup sequence and see when the noise starts. Before anything else the inducer blower will run for a minute to provide a fresh supply of air to the burner. After that the burners will ignite and the main blower fan will circulate warm air around your home. If the sound happens right when the furnace starts, then it could be the inducer motor, or the sound of air in the exhaust pipe. If the sound happens later in the sequence then it could be the main blower motor or sound of vibration within the ducting.
Thanks that helped me rule out several things! not sure if you will see this but we recently moved to a house with a gas furnace and this is the first time its been cold 20ish degrees and my wife noticed a compressor running type noise when the furnace was running. any thoughts on what that would be?
Thanks for watching. In high efficiency furnaces there is the inducer fan which might make a slightly different noise from the blower fan. As well some models have a condensate pump that will run to clear the condensate water that is created when the furnace runs. This pump does not run all the time only when the level triggers the float switch. Not all models have a pump, these are only installed beside the furnace if there is no drain to directly remove the water with.
Thanks for watching. If you are hearing a sick amount of bass, or goat noises coming from your furnace, then it's a good sign that it's not working properly. You can see how to troubleshoot this further in these videos: th-cam.com/play/PLCo9SMjkdWBzorzNrARLKALj9fW7HzHMh.html
Thank direct to the point. I have someone comein to look at it. He's also direct to the point buy a new one from our company. Geeze instead of just maintenance for the winter that's his first diagnosis. What's your recommendation?
Thanks for watching. It depends on what is causing the noise. If the motor bearings has worn down then a new motor would be needed. If the noise is coming from an alignment issue then you can just adjust the blower wheel.
Hello i have an all electric Heat and AC home and when i turn the heat off theres a loud bang that Happens All the time sounds like the ducks that i hear when Heat is coming on.. just not sure why it makes the noise long after it’s turned off any suggestions?
Thanks for video! Is there a way to somehow reduce the popping and banging noise from ductwork? That happens very often under my bedroom floor and keeps waking me up everynight((
You're welcome Roman, we're glad you liked the video. You could try tightening any of the support brackets on the ducts if you have access to it. There is also acoustic foam or wrapping that can dampen the noise. Since you likely won't be able to prevent the duct expansion (the metal will still heat up and cool down during normal use), muffling the noise would be the best.
Thanks for watching, we're glad you found them helpful. If the sawing sound is coming from the blower wheel then check the alignment to see if any metal is brushing up against anything. Also check to make sure that the blower wheel and motor are mounted correctly and that all the mounting screws are secure. The mounting brackets should not move.
Thanks for this excellent video! My newly installed carrier furnace makes one popping sound only about second after stopping. Do you have any suggestions?
You're welcome! Without hearing the sound it's hard to say. The sound could be the sound of a relay closing. It could also be the metal ducting snapping back into position as the air pressure changes. If it was ducting you might hear the same pop when the blower starts as well.
Any suggestions for a 700 sq ft mobile home that when the blower is running it sounds like you have the window rolled down and have stuck your head out of a 747 while it's in flight. It is such a loud wind noise that a smart speaker assistant less than two feet away from you can not make out the voice commands, and is over 6 ft away from the single floor vent in the room. I have even tried to make a buffer to reduce the wind blowing noise like boom microphones use outdoors. The hvac heat and air conditioning systems work well but the fan has one setting "wind tunnel"
I've got the loud metalic hollow grinding noise exactly like the one in this video, but it's not from the blower fan it's coming from the draft inducer.
Thanks for watching. The draft inducer motor can also wear down over time like the blower fan motor. You can see how to install a new one in this video: th-cam.com/video/EsJhfFMZWJA/w-d-xo.html
I'm getting a slight metal banging noise when the AC is now on. I here more as I go by the panel doors. Don't think it's the panel doors. As I put hand pressure on them the noise does not go away. It sounds like it's something lose. I'm tempted to open the doors and look. Can't heat the noise by the intake located on the outside wall. So don't think it's blower related. Maybe duct noise? But it does not pop. Then again it's cold air. Need a tune up soon . So I think I will leave it to the expert.
Thank you for an awesome video! We just replaced our electric furnace. After first time running, we could hear some noises. It's more like from the ceiling or the vent area but I'm not sure. Even we could feel some vibration as well. The sounds like thunder. It gets loud in the middle & is getting louder right before it stops. Also we could hear lots of popping sounds irregularly after the heater stops, maybe because of duct expansion. I was wondering if you could tell me why this happened. Thank you in advance! :)
Thank you for watching. What you are describing in the vents is likely duct expansion. When the metal ducting heats up or cools down it will change its shape slightly, and pop in and out. After the blower fan stops running, the ducts are now cooling down and will continue to contract or pop for a few minutes.
Wow this is literally our exact same problem as our house! I’m hoping ANYONE can give me any advice to quiet this down it would be much appreciated thanks!
@@AmreSupply thanks for the answer!! But just wanted to make sure in order to stop the feeling of vibrations from the duct just wrap insulation or the aluminum bubble wrap duct foil? Any advice would help me out so much thank you!
@@tatebraboy336 That is a great question. It all depends on your particular home and how things are installed and how much access you have to the ducting. To reduce the expansion noise you can cover your ducts with fiberglass insulation, or insulated foil. Additionally you can use rubber pads to isolate ducts from wood to reduce how much vibration is transferred into the home. Even with all these measures it is difficult to completely get ride of the noise, instead you'll likely only get a modest reduction in loudness.
Our furnace makes a sounds similar to the sound of the worn bearings in this video but it does this for a minute or two before the air kicks in and you hear a loud woosh as it starts to circulate the air. Does that further point to a failing motor, or does that suggest that it might be something else? Thanks!
Hi Jamie, thank you for watching. What you are describing is the inducer blower fan that runs before the main blower fan. In mid to high efficiency furnaces the inducer pulls air into the burner. This clears the combustion chamber of any exhaust gases. This blower fan will run before the burners ignite. If you think the inducer is starting to fail, it can be replaced: th-cam.com/video/EsJhfFMZWJA/w-d-xo.html If you've found this helpful and want to help support the production of more videos like this, you can like, share or even subscribe to our channel. Every little bit helps!
replacing blower motor on my furnace. problem is it's an old unit (pre 1988) and they have updated the motor. the new motor has 4 wires plus the 2 capacitor wires and the original motor had 5 wires plus the 2 capacitor wires. the difference according to the motor tag is the original motor had two med speeds and the new motor only has one med speed. can I wire it up with one med speed? do I use med lo wire, med hi wire or both med to the new motor? ty for any assistance you can provide. 🙂
Thanks for watching. If your furnace has 4 wires (plus one wire for common) set up for 4 speeds , then the furnace control will be switching between 4 lines of power. The motor uses wire taps which sequentially increases the resistance on the motor winding. You can see this here: th-cam.com/video/3eOARJ8oRrc/w-d-xo.html If the new motor has 3 wire taps, and If one wire is doubled up, (2 lines feeding into one tap on the motor), then one speed will just be repeated. So depending on how you wire it, it would result in "4" speeds on the new motor. Low, med, med, high. or Low, low, med, high or Low, med, high, high Connecting med low and med high to the medium wire tap, will likely be closest to the original motor. If the wire colors are different or if you are not sure which wire tap is what, then you can test between each speed and common. The lowest speed will have the highest resistance.
Thanks for the video. I’m stumped. In one section of the home, of course our bedroom, when the heater starts the process of shutting down a LOUD rattling noise runs the entire length of the duct system. HVAC company says it’s not the heater, Duct company says it’s not the Duct system. How do I tell which is correct. Please help!
Thanks for watching. In these sorts of situations is best to try to listen at several different locations to see if you can narrow down where the sound is loudest. A rattle could be the motor vibrating when it is running. It could also be the force of the air moving through the ducts. If it's the motor that is vibrating then the blower wheel might be imbalanced or the rubber grommets that help mount the motor might be worn down. If it is the vibration of air through the ducts, there are ways to reduce vibration of the duct work itself. Sometimes this involves tightening of the mounting screws.
mine sounds exactly like the motor bearing clip you showed. I assume I need a new motor? because the sound will be intermittent. it will be very noticeable but then sometimes be quiet to where I do not even know if the furnace is on if I'm in another room.
Thanks for watching. It can be difficult to tell but you could always check the alignment and see if there is any friction when you spin the blower wheel. You can see how to access it here: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Thanks for watching. With the power and gas disconnected, look inside blower wheel housing and make sure there's no debris stuck inside the blower wheel. If you remove the blower wheel you can also turn the wheel by hand to see how centered it is while it spins. From there you might be able to loosen and re-tighten the screws. You can see how to remove the blower wheel here: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Thanks for watching. Oil can be added to the bearings and it can help. If the bearings are too worn out then a new motor will be needed. We don't have a video showing how to oil the bearings but we have one on how to access the assembly and replace the motor th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Thanks for watching. Whistling can be a slight misalignment or high speed vibration. A small amount of grinding, (the light touching of two metals) at 1500rpm could sound like a whistling.
We had a rattling noise from our furnace. I cleaned and rebalanced the squirrel cage. It still makes a rattling sound for the first few seconds and then stops. How can I kill the noise for good? TIA
Thanks for watching. It can be difficult to narrow down some of these noises. If there are any other screws then try to tighten them. As well check for any flex around where the blower wheel assembly mounts to the furnace. In some cases you can dampen any spots that might flex or vibrate.
I replaced my inducer motor and it is making a very loud vibrating noise now. What could this be? My last one the squirrel cage walked off the the inducer motor shaft and started rubbing on the case of the inducer housing. I think it is doing this again with the new one. Why are these motor/housing/ squirrel cages junk? Why is there just a tiny spring to hold the squirrel cage to the motor shaft? Which does not hold it there. Is there a number I can call to talk to the manufacturer? I want to voice my concerns as I am spending too much money on a 15 year old furnace? I am subscribing to this to get the messages.
Thanks for watching. If the blower wheel is sliding and isn't staying on the shaft then you could look into getting a different motor shaft stopper or retainer / retaining spring. There are some that are tightened with a hex wrench which prevents it from shifting over time. You'd have to measure the shaft diameter and find a stopper compatible with that size.
Very helpful. Our AC furnace makes a loud tapping sound every 3 seconds and I can't figure out the source. Neither could the A/C serviceman but he speculates it could be the blower fan. Any thoughts? Thanks.
Thanks for watching, we're glad you found it helpful! Since the blower fan spins quite quickly a sound that happens every 3 seconds might be more of a balance issue with the motor. That could cause it to rock back and forth periodically. You could just set the thermostat to the FAN ON mode to test the fan without heating or cooling. If the sound still occurs, then it might help you narrow it down to the blower fan.
I don't here any of those but Im listening from the outside of the unit where the videos have the cover off. Would that make a difference? The plumber said everything is fine, just old. But it is so loud and runs nonstop. Our neighbors filed a complaint.
Thanks for watching. Taking the cover off will increase the noise but it will be similar overall. The location of the furnace can make a different of how loud it is in the home. As well, if the furnace runs non-stop check the thermostat settings. The fan should be set to "AUTO", this will mean that the blower will only run when heat is needed. If the thermostat is set to "ON" the blower fan will stay on and will run 100% of the time even when the furnace is not heating.
Thank you for including the sounds of the various potential problems. I have a York system in the attic. Suddenly the air conditioning began to start and stop accompanied with a sound much like the bass drum in a parade coming from the attic. Do you have any insight to this. Thank you.
Thanks for watching. First, try changing any air filters for the AC unit / furnace blower. The sound of banging could be the sound from the air ducts. Are you able to recreate the sound when just running the blower fan without the AC unit?
@@SlingbladeJim In that case, it could be an issue with the compressor motor, the run capacitor, frozen coils or the compressor could be overheating. Unfortunately we don't have any dedicated tutorials on this as these AC units are less common in Canada. We did our series on furnaces and water heaters and are currently doing appliance troubleshooting. We do however have this video for testing the run capacitor: th-cam.com/video/NkgxNLCrmr0/w-d-xo.html
@@SlingbladeJim The compressor motor and capacitor will be outside and not in the attic. It could also be an issue with the thermostat. In any case if it is starting and stopping you're likely hearing the duct expansion when it begins to run. The key now is to find out why it's short cycling.
Thanks for watching. The blower fan should be centered with the housing that there is space on either side of it. This will likely not be flush with the motor shaft. Each housing is a little bit different though so there is no set measurement or distance on the shaft to mount it, so just check when re-installing.
My furnace is a Brand New York I believe a two-stage furnace if that makes sense my issue is it sounds like a rocket ship when it's actually working the efficiency is fine there's no other issues except when it's running it's noisy would it be anything to do with my fan speed or do you have any others suggestions thank you
Thanks for watching. Its hard to say exactly. Each furnace will sound different and the overall loudness depends on the furnace location, the model and how your home is built. Furnaces in an isolated room will be more muted than an unfinished basement. Having ceiling tiles in a basement will also muffle the sound through the vents. It is possible that your furnace motor is oversized for the load. A furnace tech might be able to rewire the motor to run at a different speed that is more appropriate to what your home needs.
Thanks for watching. The blower can is common in many furnaces regardless of make. Its the part with the most movement so if anything is going to rattle or loosen overtime the blower fan is likely the cause.
My furnace did high pitched noise you played for the belt. I turned it off because me and my son got scared. It's early morning right now, it's cold and I turned it back on. It's no longer making the noise, should I still have it checked?
Thanks for watching. The belt can make noises as it wears out, or as it warms up when running. If its still gripping and turning the blower fan then the furnace will continue to run without issues. Replacing the belt or adjusting the tension can help get rid of the noise. If you're still concerned then don't hesitate to get it checked.
duct expansion makes sense if the furnace/heat just kicked in. but what if it is going on all day and all night? what is the solution? it also isn't coming from one specific point, it's throughout the whole system, like it's echoing itself through the entire ducting. could the duct be continually expanding? what causes this and what are the solutions? please advise!
Thank you for watching! The metal ducting will continue to cool and contract well after the furnace has stopped heating. There is still a bit of heat inside the duct and that will dissipate over time. If you have access to the ducting you can try tightening some of the screws that hold it in place but regardless the sheet metal will expand and contract randomly. There's no way to predict it and there's no way to really fix it.
My furnace makes similar to but not exactly like the car sound you mentioned. Funny thing is it only makes this noise at night. How do I share the video, so you can listen and help.
Thanks for watching. With evenings being colder than the day time its possible that you're just noticing the furnace run more frequently during the night. If it sounds like a car idling then its likely that the motor bearings are starting to fail.
Mine sounds like the inducer noice. My furnace is somewhere up on the crawl space above the 2nd floor. I’ve never seen it, my previous house was in the garage, so I find this weird. Anyway, I can only hear that louder then usual noice from my upstairs bathroom. I never heard before and it scares me to turn it on. I feel like my house is going to burn down. Do houses catch fire from an old furnace? My house was built in 2003.
Thanks for watching. Furnaces come with safety devices that will shut it down if it's unsafe to operate. The inducer noise is an indication that it might be starting to fail. It would be best to get it inspected now and be proactive about the sound rather than waiting for it to fail at a random time.
Thanks for watching. If a new furnace is making that high pitch sound then its likely not an issue with the motor but it could the sound of the air leaking or being drawn in. A small gap in one of the ducts or the furnace cover could cause the air to whistle. This can be difficult to narrow down visually but you might be able to feel the suction and the air moving in some cases.
My blower motor might be bad . Running weakly partially . No Ac five days now . Yeah could be something else but changed capacitor still the same . Yeah could be board or relay I guess ? But I can't get someone out here yet . Might as well replece with brand OEM motor at $300 ? Losing it . I took off motor already but now been told if it still there I could test voltage and if it's getting the rated 115 volts it's the motor
Thanks for watching. Even if the control board sends 115 volts to the motor, the motor can fail mechanically or electrically. With the motor removed you can see if it spins freely. If there is any restriction then the bearings might be worn out or might not be lubricated anymore. As well check all the wire terminals to see if there is any corrosion or anything that would prevent good connection.
@@AmreSupply it was the motor. Replaced with a universal one from century $74 plus needed bracket $30. Very well worth it. Yeah could tell right away that it was blowing full power at the vents unlike before. Heat is sooo high here in south Texas. 🔥🔥🥵
@@frankmontez6853 Thanks for the update, glad to hear that you have it fixed! Here in Alberta we just went through a heat wave of 40°C which is 104°F, so I think we got a little taste of what weather is like in Texas. To not have a AC to help cool down your home would be pretty exhausting!
My furnace has been making sounds similar to the popping and banging you associate with duct expansion but I don’t have forced air. Should this be an immediate concern?
Thanks for watching. There is also other metal inside the furnace housing that can expand so it might not just be the ducts. If your furnace runs properly then its likely just expansion. Monitor it and see if anything changes over time.
We released a similar video on refrigerator noises. If you're curious, follow this link to see more: th-cam.com/video/E8sWROIVWbs/w-d-xo.html
I love how he gets right to the point and you don't have to try to skip ahead to locate useful information. Some of these guys think we have nothing better to do all day.
Thank you! We try to keep all of our videos short and clear!
I agree.
So helpful hearing the sounds associated with each issue. Thanks for taking the time to shoot and post this video. I'm relieved to learn that the popping sound is normal.
You are welcome Danielle, we're glad you found the video and audio examples helpful! We try to make all our videos as straight forward as this one. If you're interested, here's a video we made on Electricity and Multimeter basics. Its good information for anyone to know to better understand how electricity works. th-cam.com/video/r_migcta_Is/w-d-xo.html
Replacing ta relay ona house trailer heating
Unit
I can to this video after others because of the reason you mentioned.
This has got to be one of the best TH-cam videos I've ever seen on diagnosing an issue. Very clear language and sound samples (I very well may have a belt issue). I've been around the TH-cam block for a long time and have uploaded my own DIY videos. Great job AMRE Supply!!
Thank you! We put a lot of effort into making our videos informative and easy to follow so its great to get a comment like this. We're glad that you found it helpful!
Thank you for adding in the type of noises for each problem! I found this video very helpful for my untrained ears!
You're welcome Eda, we're glad you found the examples helpful!
Thank you for the video. Disassembled my fan cleaned it up and tightened all bolts and set screw, put it back together and everything is running great. No shaking or noise.
Thanks for watching Ruger! We're happy to hear that cleaning and tightening the bolts helped eliminate the noise in your furnace!
This was amazing, mine sounds just like the loose bolts holding the motor, ty!! You're nothing short of an angel :)
You're welcome, we're just glad that the video helped you out!
Great video! It helps to hear the sound associated with the problem description and solution.
Thanks Cindy! We're glad the video and audio examples helped you out!
What a GREAT video! Thank you so much for taking the time to do this! Single mom here, so it really helped that you included the sounds! I’m about to strap on my (pink!) nail apron, bundle up and head up to my attic to see if I can repair what’s causing the racket! I’m hoping it will just require the tightening of bolts! 🤞🏽 Stay tuned and thanks again! 👍🏽
You're welcome Leslie, we're so glad that the video was helpful to you! Best of luck to you in narrowing down the noise!
Did it? I have the same loose sounds in mine
Thanks for the hints. I just fixed the noise in my furnace by adjusting a few bolts. None of them was noticeable loose, but tightening all of them (including the blower) did the trick. Thanks!
You're welcome Jorge, we're happy you found the video helpful! In a lot of cases vibration can add up when something is rotating 1000 times a minute, and in general it doesn't hurt to tighten up each bolt. Glad it did the trick!
I am so relieved to hear the banging my furnace makes is not a problem.. Thank you so much for your troubleshooting all furnace issues getting to the point. You could teach many how to do a successful video 👏 Have a beautiful day 🌞
Thank you, we're just happy to share some good info!
I just moved into an old home and the blower was in a really disgusting and loud state. I cleaned all the bolts including the centre one mentioned here and it's making soooo much less noise. Thanks so much for the context here, working on furnaces as a homeowner can be daunting.
Thanks for watching. We're glad that the video helped you out! As a homeowner there is a lot to take care of, one video that you might find helpful is this one on Multimeters and electricity basics: th-cam.com/video/r_migcta_Is/w-d-xo.html It can be a good review and help fill in the blanks as well.
This video goes over appliance components which is a good overall introduction t what you'll need to test if something fails.: th-cam.com/video/e_1pOWSVUfg/w-d-xo.html
Great video, answered my question of hearing knocking sound from the hole where air flows out.
Thank you, we're glad you found it helpful!
This has to be one of the best videos I have ever watched! Thank you for putting in the effort.
You're welcome! We're just glad that you found it helpful!
This is a great video!! Having examples of each of the sounds was incredibly helpful! Great job
Thank you, we're glad you found it helpful!
@@AmreSupply Based on your video, I assumed it was a belt issue, so I went to check. Turns out we have a direct drive blower motor and the whole motor has to be replaced. 🙃
@@Studio23Media Thanks for the update, the motor isn't too difficult to replace. You might find these 2 videos helpful when replacing the motor.
How to replace motor & capacitor: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
How to find a matching motor: th-cam.com/video/TF3QtXWd8s0/w-d-xo.html
Thanks for showing the location of the blower fan. I had huge grinding noise and as it turns out one of the sticker labels inside the furnace came off and got sucked into the blower making grinding noises. I removed the torn pieces of paper from the blower and the noise was gone. I recommend spinning the blower manually first to see if the noise come from there
You're welcome, we're just happy that the video helped you fix the problem!
This is one of the most useful videos on TH-cam!!!
Glad it was helpful!
This is great! Sound samples are tremendously helpful. Here in NW Montana, where I woke up to -30F this morning, I really like when this thin-walled camper's furnace runs properly. But it does not always run well.
Sometimes it start off rough, wobbly or rattly, lower RPM, and no heat. After a few seconds to a few minutes the motor goes steady and smooth, just normal hum and air noise, then a few seconds later the ignition kicks in and I have heat. But sometimes it'll start off rough and stay that way no matter how long I wait, blowing cold outdoor air into my formerly comfy living space. Waking up to 40degF and a noisy blower at 3am is not fun. Maybe thumping the exhaust port or the main housing of the furnace will cause it to run smooth.
From other videos and articles I know about the sail switch, which explains why there's no heat during the wobbly/rattly phase, and it all works fine once the motor goes steady at full RPM.
So, do I need a new motor or could a bit of oil or some other cheap easy method fix this?
Thanks for watching. Not all motors can be easily lubricated with oil, and not all motors have the ability to be adjusted. It could be that the motor bearings are starting to wear down.
We don't have any videos or guides on RV furnaces or adjustments so I can't point you to any other resources directly. Before replacing a motor, check to make sure all the switches are good, and that the airflow does not have any restrictions. Those can change the operation.
Hope this helps!
Best video ever! Clear and informative. My furnace fan sounds a bit off balance on the low setting. On high it smooths out it seems. Weird. Not sure what's going on
Thanks for watching. It's worth still checking the alignment and seeing if you can tighten any of the mounting screws. At higher speeds there is a centering effect. Not sure of the exact physics behind this but i think it would be similar to how a bicycle is less stable when you try to slow down past a certain point. To access the blower fan you can see more steps in this video: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Thank you, spot on..., had my wheel cleaned by AC company and that’s when squeaky noise happen .🤨🤨🤨. No, they are trying to act like I need a new system, NO I DONT... they have been servicing it for 5yrs. Yes my system is 20yrs old, but it kicks air and heat great, ☺️even before it was cleaned. Thanks.
Hi Taneda, Thanks for watching and sharing your experience! We're glad that your furnace is still running smoothly after 2 decades. Were you able to narrow down and fix the noise?
I had just replaced my blower motor and about a month later the blower fan was rattling a bit. Watched this video and tightened the set screw. Presto!
Thanks for watching! We're glad the video helped you narrow down and fix the rattling!
I had a similar issue on a motor I replaced about a year ago. I tightened everything up and it stopped for about a day, then started up gain. I'm not sure if t hings loosened back up, or if removing and replacing the blower motor stopped some other issue.
You did a great job adding the noise sounds here, thank you!
Thank you! We thought the example noises would be helpful and we did the same thing for our Refrigerator Noises troubleshooting video: th-cam.com/video/E8sWROIVWbs/w-d-xo.html
Very professional, very well explained and detailed. Thank you for sharing your knowledge and experience.
You're welcome Elvis! We try to make all of our videos easy to follow, we're glad that you found it helpful!
Great video with sounds...really helped....... There is no good time to have a furnace problem fortunately mine was popping in the ducting....
Thank you, we're glad that you found it helpful! The sounds from duct expansion is common but fortunately doesn't effect how the furnace itself runs.
ill probably mostly call somebody if i have problems with my heater but its amazing the wealth of teaching info online. thank you, im learning tons about how heaters work 😂 kinda awesome.
or furnace is that the correct term 🤣 not heater. furnace lol.
Thanks for watching, we're just happy that you found the video helpful! If you're curious we have a "how it works" playlist that has a lot of great animations: th-cam.com/play/PLCo9SMjkdWBxWwrWCmzvRMSi2kLo9bGdp.html
Thank you very much for this informative video. I just subscribed your channel for future reference in case I have any issues with my furnace
Thanks we're glad you found the video helpful and we're happy to have gained another subscriber! Keep in mind we have many other troubleshooting videos as well including a complete series on water heaters: th-cam.com/video/BHUPFLbb8NY/w-d-xo.html Cheers!
Fantastic video. I hear the problem that’s going on with my furnace.
Glad it helped
Thank you for this excellent video. I was able to trace the problem down to a broken belly band on my blower motor. Unfortunately I didn't know the "hamster wheel" had weights that were thrown off, which is what I'm told is causing the continued shaking noise, but at least I have heat!
You're welcome Dave we're glad you found the video helpful. Are you saying that there were additional weights on the blower wheel that fell off and now the blower wheel is unbalanced? If so you could try spinning the blower wheel slowly by hand to try to determine the balance. Just observe where the blower wheel starts turning under its own weight as this will help you determine the heavy side of it. Just put the weights opposite to that side of the blower wheel.
Liked and subscribed even though I'm a plumber I don't do much on heating side so this helped
Thank you, we're just glad to share some good information to those who are interested!
thank you I had to replace my blower motor and it made noise ever since. I did not tighten the set screw. Thank you for this video
You're welcome, we're glad that the video helped you fix the noise!
Great video! What about a rumbling noise while its heating?
Thanks for watching. This would depend on where you are hearing the sound from. It could be a rumble from the motor or blower wheel. Tightening the screws on the mounting bracket could reduce that sort of noise.
This video was so helpful
Thank you, we're just happy to share some good info!
Amazing video, specially the samples noise you gave
Thank you Tereza, we're glad you found it helpful!
I just had a new Coleman AC and Air Handler if I’m saying it right, put in today 10/7/2021 and it is so noisy coming through my vents and also the unit outside so I wanted to come on TH-cam before I call the company back. Thanks for your video.
Did you find your answer I'm having the same issue, my furnace is a two-stage furnace I guess and I was told maybe the fan speed should be lowered but it sounds like a rocket ship taken off it works fine there's no issue there but it's just really loud, is this similar to your issue if so if you find your issue out would you let me know please
@@liamoconnor9017 Hi Brian, I have not, I just got back in town and the owner of the AC Company said my fan may just need to be turned down a little, he said when my house was built they put a 3 ton unit in and now I upgraded to a 3 1/2 ton unit so it’s blowing stronger, but I told him I asked you can my house take a 3 1/2 ton and you said yes for sure. I said you didn’t tell me if I upgraded it will be loud 🤨😩 so I will see if the help when he come some time this week. But Brian it’s my fault 🤦🏽♀️ because I was so hot 🥵 in my house for 3 days without air I couldn’t do my research on the Coleman brand before hand and after it was install I read that people always having problems with the parts and it’s very noisy. I will try and remember this video to come back and let you know how it worked out.
@@nellielee2915 ok thank you I was told something similar, that's what I'm going to be having done here in a another few weeks as I live in Canada Ontario and it's going to start getting cool I'll let you know if it helps out take care and thank you
Thanks for watching. Its hard to say exactly. Each furnace will sound different and the overall loudness depends on the furnace location, the model and how your home is built. Furnaces in an isolated room will be more muted than an unfinished basement. Having ceiling tiles in a basement will also muffle the sound through the vents. It is possible that your furnace motor is oversized for the load. A furnace tech might be able to rewire the motor to run at a different speed that is more appropriate to what your home needs.
@@AmreSupply Thanks for responding, and I understand you right those things will make a difference, my AC guy did say since my house was built for a 3 ton and I upgrade too a 3.5 ton but, he said he will come to find out why, and he also said he could turn the fan down but I will see when he comes.
Great video, I'm having some furnace problems myself. My furnace is not blowing hot air is just blowing air also the fan sends to be blowing in what I can only describe as a breathing pattern where it blows hard and then soft. Thanks.
Hi Jaime, thank you for watching. We have a video that talks about a furnace that only blows cold air. Its worth a watch to double check a few things first: th-cam.com/video/XrxV6I8C4yY/w-d-xo.html
These are the videos to people need.
Thanks, we're just glad people are finding it helpful!
Thank you so much. You resolve my problem. I thought it was something more serious. It im hearing like a boom or popping noise that continues and it stops. Also notist the belt it's ripping off i just text the owners but they ignore me.
You're welcome, we're glad that you found the video helpful!
Thanks for the help 🙂
You're welcome!
Great video and good information. However my hvac system is noisy in a different way. It's loud only as it starts up or whines up. Any idea what could be this problem?
Thanks for watching, we're glad you found it helpful. Some sounds are related to the RPM of the motor. As the blower motor is starting to spin you might be hearing the bearings rub, or it could be an imbalance in the blower whee. As it gets up to speed, it becomes more balanced and the sound goes away.
Thanks for sharing this video. Moral of the story is my unit needs a new motor based on what I’m hearing smh. What frustrates me is we purchase our home 10yrs, brand new construction. The unit installed was a Carrier. Within 10yrs the motor has been replaced twice and other issues with the carrier unit. We get our unit serviced annually! At our previous home we had a Trane unit, we had that unit for over 16yrs not once did the motor, compressor, condenser NOTHING major ever went wrong with that Trane AC unit other a clogged drain that’s it. This Carrier unit we have at our current home is a nightmare
Thanks for watching, we're glad that you found the video helpful. Because of the differences between models and installations it is difficult to predict what will fail over time, but any grinding noise or bearing sound is a strong indicator that the motor needs to be replaced.
Fantastic video. Straight to the point and no bs time wasting. Excellent, 10 out 10 stars. 👍👍🇮🇪🇺🇸
Thank you, we're just happy to share some good info!
Don't know why I just subscribed. But the video is so well made and the guy is so charming. As a straight man, how can I be mesmerized by another man?!
Thanks for subscribing. It is definitely a team effort but with a bit of hard work we try to infuse all our videos with that same sort of magic.
Great video!
Thank you!
Great video. I have an odd noise coming from my air handler when running that can be heard throughout the house that I would describe as a tuning fork, or like rubbing a finger on the top of a wine glass. I haven't been able to pinpoint what exactly is making the noise.
Thanks for watching. You could observe the startup sequence and see when the noise starts. Before anything else the inducer blower will run for a minute to provide a fresh supply of air to the burner. After that the burners will ignite and the main blower fan will circulate warm air around your home.
If the sound happens right when the furnace starts, then it could be the inducer motor, or the sound of air in the exhaust pipe.
If the sound happens later in the sequence then it could be the main blower motor or sound of vibration within the ducting.
Thanks for the tips!
You're welcome, we're just happy to help!
Thank you great video
Glad that you enjoyed it!
Thanks that helped me rule out several things! not sure if you will see this but we recently moved to a house with a gas furnace and this is the first time its been cold 20ish degrees and my wife noticed a compressor running type noise when the furnace was running. any thoughts on what that would be?
Thanks for watching. In high efficiency furnaces there is the inducer fan which might make a slightly different noise from the blower fan. As well some models have a condensate pump that will run to clear the condensate water that is created when the furnace runs. This pump does not run all the time only when the level triggers the float switch. Not all models have a pump, these are only installed beside the furnace if there is no drain to directly remove the water with.
@@AmreSupply ah that makes sense then it must be the condensate pump as it was draining a bit of water as well.
I heard the bang I was hearing. Thanks
You're welcome!
Bass is that dawg goat
Thanks for watching. If you are hearing a sick amount of bass, or goat noises coming from your furnace, then it's a good sign that it's not working properly. You can see how to troubleshoot this further in these videos: th-cam.com/play/PLCo9SMjkdWBzorzNrARLKALj9fW7HzHMh.html
Great video! Thanks so much for making this!
You're welcome, we're just happy to help!
Awesome, thank you
You're welcome Victor! Thank you for watching!
This is awesome. Can you please do more?
Thanks for watching. We are working on our next series which is refrigerator troubleshooting and repairs.
Thanks
You're welcome!
Thank direct to the point. I have someone comein to look at it. He's also direct to the point buy a new one from our company. Geeze instead of just maintenance for the winter that's his first diagnosis. What's your recommendation?
Thanks for watching. It depends on what is causing the noise. If the motor bearings has worn down then a new motor would be needed. If the noise is coming from an alignment issue then you can just adjust the blower wheel.
@@AmreSupply
Thank you
Love it thanks!!
You're welcome!
Hello i have an all electric Heat and AC home and when i turn the heat off theres a loud bang that Happens All the time sounds like the ducks that i hear when Heat is coming on.. just not sure why it makes the noise long after it’s turned off any suggestions?
Thanks for watching. Do you know where the noise is coming from? Is it from within the ductwork or the furnace itself?
Thanks for video! Is there a way to somehow reduce the popping and banging noise from ductwork? That happens very often under my bedroom floor and keeps waking me up everynight((
You're welcome Roman, we're glad you liked the video. You could try tightening any of the support brackets on the ducts if you have access to it. There is also acoustic foam or wrapping that can dampen the noise. Since you likely won't be able to prevent the duct expansion (the metal will still heat up and cool down during normal use), muffling the noise would be the best.
love the noise examples ...but i didnt hear the one my furnace is doin...a sawing sound in and off
Thanks for watching, we're glad you found them helpful. If the sawing sound is coming from the blower wheel then check the alignment to see if any metal is brushing up against anything. Also check to make sure that the blower wheel and motor are mounted correctly and that all the mounting screws are secure. The mounting brackets should not move.
This is a fantastic video
Thank you, we're glad that you liked it!
Thanks for this excellent video! My newly installed carrier furnace makes one popping sound only about second after stopping. Do you have any suggestions?
You're welcome! Without hearing the sound it's hard to say. The sound could be the sound of a relay closing. It could also be the metal ducting snapping back into position as the air pressure changes. If it was ducting you might hear the same pop when the blower starts as well.
Thanks for your reply. It was the filter hitting the grill.
@@sk-wf9xp That make sense. Glad that you figured it out!
Any suggestions for a 700 sq ft mobile home that when the blower is running it sounds like you have the window rolled down and have stuck your head out of a 747 while it's in flight. It is such a loud wind noise that a smart speaker assistant less than two feet away from you can not make out the voice commands, and is over 6 ft away from the single floor vent in the room. I have even tried to make a buffer to reduce the wind blowing noise like boom microphones use outdoors. The hvac heat and air conditioning systems work well but the fan has one setting "wind tunnel"
Thanks for watching. Has this always been this noisy or has it changed over time?
I've got the loud metalic hollow grinding noise exactly like the one in this video, but it's not from the blower fan it's coming from the draft inducer.
Thanks for watching. The draft inducer motor can also wear down over time like the blower fan motor. You can see how to install a new one in this video: th-cam.com/video/EsJhfFMZWJA/w-d-xo.html
This helped out a lot!
We're glad to hear it!
I'm getting a slight metal banging noise when the AC is now on. I here more as I go by the panel doors. Don't think it's the panel doors. As I put hand pressure on them the noise does not go away. It sounds like it's something lose. I'm tempted to open the doors and look. Can't heat the noise by the intake located on the outside wall. So don't think it's blower related. Maybe duct noise? But it does not pop. Then again it's cold air. Need a tune up soon . So I think I will leave it to the expert.
Thanks for watching. Sometimes these noises can be difficult to narrow down so it can definitely be helpful to hire an expert to do an inspection.
Thank you for this video!!
You're welcome, we're just happy to help!
very well done video
Thank you, we're just happy to help!
Thank you for this wonderful video.
You're welcome Gerald!
Great video Thanks!
You're welcome!
Good stuff right here. Much appreciated.
Thank you Edward, we're glad that you found the video helpful!
Thank you for an awesome video! We just replaced our electric furnace. After first time running, we could hear some noises. It's more like from the ceiling or the vent area but I'm not sure. Even we could feel some vibration as well. The sounds like thunder. It gets loud in the middle & is getting louder right before it stops. Also we could hear lots of popping sounds irregularly after the heater stops, maybe because of duct expansion. I was wondering if you could tell me why this happened. Thank you in advance! :)
Thank you for watching. What you are describing in the vents is likely duct expansion. When the metal ducting heats up or cools down it will change its shape slightly, and pop in and out. After the blower fan stops running, the ducts are now cooling down and will continue to contract or pop for a few minutes.
Wow this is literally our exact same problem as our house! I’m hoping ANYONE can give me any advice to quiet this down it would be much appreciated thanks!
@@AmreSupply thanks for the answer!! But just wanted to make sure in order to stop the feeling of vibrations from the duct just wrap insulation or the aluminum bubble wrap duct foil? Any advice would help me out so much thank you!
@@tatebraboy336 That is a great question. It all depends on your particular home and how things are installed and how much access you have to the ducting. To reduce the expansion noise you can cover your ducts with fiberglass insulation, or insulated foil. Additionally you can use rubber pads to isolate ducts from wood to reduce how much vibration is transferred into the home. Even with all these measures it is difficult to completely get ride of the noise, instead you'll likely only get a modest reduction in loudness.
Great video.
Thank you Shane!
Our furnace makes a sounds similar to the sound of the worn bearings in this video but it does this for a minute or two before the air kicks in and you hear a loud woosh as it starts to circulate the air. Does that further point to a failing motor, or does that suggest that it might be something else? Thanks!
Hi Jamie, thank you for watching. What you are describing is the inducer blower fan that runs before the main blower fan. In mid to high efficiency furnaces the inducer pulls air into the burner. This clears the combustion chamber of any exhaust gases. This blower fan will run before the burners ignite. If you think the inducer is starting to fail, it can be replaced: th-cam.com/video/EsJhfFMZWJA/w-d-xo.html
If you've found this helpful and want to help support the production of more videos like this, you can like, share or even subscribe to our channel. Every little bit helps!
Great video thanks
You're welcome Stephen!
Good stuff
Thank you Jeff!
What a great Video!!!! 😊
Thank you, we're just happy to help!
replacing blower motor on my furnace. problem is it's an old unit (pre 1988) and they have updated the motor. the new motor has 4 wires plus the 2 capacitor wires and the original motor had 5 wires plus the 2 capacitor wires. the difference according to the motor tag is the original motor had two med speeds and the new motor only has one med speed. can I wire it up with one med speed? do I use med lo wire, med hi wire or both med to the new motor? ty for any assistance you can provide. 🙂
Thanks for watching. If your furnace has 4 wires (plus one wire for common) set up for 4 speeds , then the furnace control will be switching between 4 lines of power.
The motor uses wire taps which sequentially increases the resistance on the motor winding. You can see this here: th-cam.com/video/3eOARJ8oRrc/w-d-xo.html
If the new motor has 3 wire taps, and If one wire is doubled up, (2 lines feeding into one tap on the motor), then one speed will just be repeated.
So depending on how you wire it, it would result in "4" speeds on the new motor.
Low, med, med, high.
or Low, low, med, high
or Low, med, high, high
Connecting med low and med high to the medium wire tap, will likely be closest to the original motor.
If the wire colors are different or if you are not sure which wire tap is what, then you can test between each speed and common. The lowest speed will have the highest resistance.
Thanks for the video. I’m stumped. In one section of the home, of course our bedroom, when the heater starts the process of shutting down a LOUD rattling noise runs the entire length of the duct system. HVAC company says it’s not the heater, Duct company says it’s not the Duct system. How do I tell which is correct. Please help!
Thanks for watching. In these sorts of situations is best to try to listen at several different locations to see if you can narrow down where the sound is loudest. A rattle could be the motor vibrating when it is running. It could also be the force of the air moving through the ducts.
If it's the motor that is vibrating then the blower wheel might be imbalanced or the rubber grommets that help mount the motor might be worn down.
If it is the vibration of air through the ducts, there are ways to reduce vibration of the duct work itself. Sometimes this involves tightening of the mounting screws.
mine sounds exactly like the motor bearing clip you showed. I assume I need a new motor? because the sound will be intermittent. it will be very noticeable but then sometimes be quiet to where I do not even know if the furnace is on if I'm in another room.
Thanks for watching. It can be difficult to tell but you could always check the alignment and see if there is any friction when you spin the blower wheel. You can see how to access it here: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
@@AmreSupply I replaced the motor. It was oozing out oil and was very hot to the touch/ sticky. Sounds great now.
@@agarcia8800 Thank you for the update, we're glad that you were able to fix the problem!
The squirrel cage moves noisy and also off balance. What do you think is the cause? It’s a 2006 York 3.5 TON.
Thanks for watching. With the power and gas disconnected, look inside blower wheel housing and make sure there's no debris stuck inside the blower wheel. If you remove the blower wheel you can also turn the wheel by hand to see how centered it is while it spins. From there you might be able to loosen and re-tighten the screws. You can see how to remove the blower wheel here: th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
Mine sounds like the barrings this morning it sound like a truck idle," not sure what to do
Would oiling the barrings help ?
Thanks for watching. Oil can be added to the bearings and it can help. If the bearings are too worn out then a new motor will be needed. We don't have a video showing how to oil the bearings but we have one on how to access the assembly and replace the motor th-cam.com/video/4SY8lRl8HV0/w-d-xo.html
That's what it is! It's my blower fan.
Thanks for watching! We're glad you were able to narrow down the source of the sound.
Would the whistling I hear be associated with grinding? It's infrequent but happens here n there
Thanks for watching. Whistling can be a slight misalignment or high speed vibration. A small amount of grinding, (the light touching of two metals) at 1500rpm could sound like a whistling.
@AmreSupply I changed the filter and it's gone. I put in a fpr 7. Equivalent to merv 10. We have 2 pers
We had a rattling noise from our furnace. I cleaned and rebalanced the squirrel cage. It still makes a rattling sound for the first few seconds and then stops. How can I kill the noise for good? TIA
Thanks for watching. It can be difficult to narrow down some of these noises. If there are any other screws then try to tighten them. As well check for any flex around where the blower wheel assembly mounts to the furnace. In some cases you can dampen any spots that might flex or vibrate.
I replaced my inducer motor and it is making a very loud vibrating noise now. What could this be? My last one the squirrel cage walked off the the inducer motor shaft and started rubbing on the case of the inducer housing. I think it is doing this again with the new one. Why are these motor/housing/ squirrel cages junk? Why is there just a tiny spring to hold the squirrel cage to the motor shaft? Which does not hold it there. Is there a number I can call to talk to the manufacturer? I want to voice my concerns as I am spending too much money on a 15 year old furnace? I am subscribing to this to get the messages.
Thanks for watching. If the blower wheel is sliding and isn't staying on the shaft then you could look into getting a different motor shaft stopper or retainer / retaining spring. There are some that are tightened with a hex wrench which prevents it from shifting over time. You'd have to measure the shaft diameter and find a stopper compatible with that size.
Very helpful. Our AC furnace makes a loud tapping sound every 3 seconds and I can't figure out the source. Neither could the A/C serviceman but he speculates it could be the blower fan. Any thoughts? Thanks.
Thanks for watching, we're glad you found it helpful! Since the blower fan spins quite quickly a sound that happens every 3 seconds might be more of a balance issue with the motor. That could cause it to rock back and forth periodically. You could just set the thermostat to the FAN ON mode to test the fan without heating or cooling. If the sound still occurs, then it might help you narrow it down to the blower fan.
@@AmreSupply Thanks. Old system, will be replaced.
I don't here any of those but Im listening from the outside of the unit where the videos have the cover off. Would that make a difference? The plumber said everything is fine, just old. But it is so loud and runs nonstop. Our neighbors filed a complaint.
Thanks for watching. Taking the cover off will increase the noise but it will be similar overall. The location of the furnace can make a different of how loud it is in the home. As well, if the furnace runs non-stop check the thermostat settings. The fan should be set to "AUTO", this will mean that the blower will only run when heat is needed. If the thermostat is set to "ON" the blower fan will stay on and will run 100% of the time even when the furnace is not heating.
Thank you for including the sounds of the various potential problems. I have a York system in the attic. Suddenly the air conditioning began to start and stop accompanied with a sound much like the bass drum in a parade coming from the attic. Do you have any insight to this. Thank you.
Thanks for watching. First, try changing any air filters for the AC unit / furnace blower. The sound of banging could be the sound from the air ducts. Are you able to recreate the sound when just running the blower fan without the AC unit?
No
@@SlingbladeJim In that case, it could be an issue with the compressor motor, the run capacitor, frozen coils or the compressor could be overheating. Unfortunately we don't have any dedicated tutorials on this as these AC units are less common in Canada. We did our series on furnaces and water heaters and are currently doing appliance troubleshooting. We do however have this video for testing the run capacitor: th-cam.com/video/NkgxNLCrmr0/w-d-xo.html
So..will these be in the unit outside or in the furnace in the attic ?????
@@SlingbladeJim The compressor motor and capacitor will be outside and not in the attic. It could also be an issue with the thermostat. In any case if it is starting and stopping you're likely hearing the duct expansion when it begins to run. The key now is to find out why it's short cycling.
Is the blower fan always supposed to be set to where it is flush with the motor shaft?
Thanks for watching. The blower fan should be centered with the housing that there is space on either side of it. This will likely not be flush with the motor shaft. Each housing is a little bit different though so there is no set measurement or distance on the shaft to mount it, so just check when re-installing.
My furnace is a Brand New York I believe a two-stage furnace if that makes sense my issue is it sounds like a rocket ship when it's actually working the efficiency is fine there's no other issues except when it's running it's noisy would it be anything to do with my fan speed or do you have any others suggestions thank you
Thanks for watching. Its hard to say exactly. Each furnace will sound different and the overall loudness depends on the furnace location, the model and how your home is built. Furnaces in an isolated room will be more muted than an unfinished basement. Having ceiling tiles in a basement will also muffle the sound through the vents. It is possible that your furnace motor is oversized for the load. A furnace tech might be able to rewire the motor to run at a different speed that is more appropriate to what your home needs.
Thanks 👍🏾
You're welcome!
I have a sound in and around my furnace that sounds like a giant mosquito buzzing. Any thoughts on that?
Thanks for watching. Where is the sound cumming from? It could be a motor hum or the sound of the transformer.
After your video (very good by the way). I'm starting to think it's my blower fan. Is this common in Amana furnaces?
Thanks for watching. The blower can is common in many furnaces regardless of make. Its the part with the most movement so if anything is going to rattle or loosen overtime the blower fan is likely the cause.
My furnace did high pitched noise you played for the belt. I turned it off because me and my son got scared. It's early morning right now, it's cold and I turned it back on. It's no longer making the noise, should I still have it checked?
Thanks for watching. The belt can make noises as it wears out, or as it warms up when running. If its still gripping and turning the blower fan then the furnace will continue to run without issues. Replacing the belt or adjusting the tension can help get rid of the noise. If you're still concerned then don't hesitate to get it checked.
duct expansion makes sense if the furnace/heat just kicked in. but what if it is going on all day and all night? what is the solution?
it also isn't coming from one specific point, it's throughout the whole system, like it's echoing itself through the entire ducting. could the duct be continually expanding? what causes this and what are the solutions?
please advise!
Thank you for watching! The metal ducting will continue to cool and contract well after the furnace has stopped heating. There is still a bit of heat inside the duct and that will dissipate over time. If you have access to the ducting you can try tightening some of the screws that hold it in place but regardless the sheet metal will expand and contract randomly. There's no way to predict it and there's no way to really fix it.
My furnace makes similar to but not exactly like the car sound you mentioned. Funny thing is it only makes this noise at night. How do I share the video, so you can listen and help.
Thanks for watching. With evenings being colder than the day time its possible that you're just noticing the furnace run more frequently during the night. If it sounds like a car idling then its likely that the motor bearings are starting to fail.
Mine sounds like the inducer noice. My furnace is somewhere up on the crawl space above the 2nd floor. I’ve never seen it, my previous house was in the garage, so I find this weird. Anyway, I can only hear that louder then usual noice from my upstairs bathroom. I never heard before and it scares me to turn it on. I feel like my house is going to burn down. Do houses catch fire from an old furnace? My house was built in 2003.
Thanks for watching. Furnaces come with safety devices that will shut it down if it's unsafe to operate. The inducer noise is an indication that it might be starting to fail. It would be best to get it inspected now and be proactive about the sound rather than waiting for it to fail at a random time.
Any thoughts on how to quiet down a new furnace? The motor makes a high pitch kind of zinging sound when running,,, Thanks
Thanks for watching. If a new furnace is making that high pitch sound then its likely not an issue with the motor but it could the sound of the air leaking or being drawn in. A small gap in one of the ducts or the furnace cover could cause the air to whistle. This can be difficult to narrow down visually but you might be able to feel the suction and the air moving in some cases.
@@AmreSupply great thanks,, I'll take a look
What about a loud sharp high pitched "metal on metal" noise before it runs
Thanks for watching. That could be an issue with the motor bearings, or the blower fan could be making contact to the side of the housing.
My blower motor might be bad . Running weakly partially . No Ac five days now . Yeah could be something else but changed capacitor still the same . Yeah could be board or relay I guess ? But I can't get someone out here yet . Might as well replece with brand OEM motor at $300 ? Losing it . I took off motor already but now been told if it still there I could test voltage and if it's getting the rated 115 volts it's the motor
Thanks for watching. Even if the control board sends 115 volts to the motor, the motor can fail mechanically or electrically. With the motor removed you can see if it spins freely. If there is any restriction then the bearings might be worn out or might not be lubricated anymore. As well check all the wire terminals to see if there is any corrosion or anything that would prevent good connection.
@@AmreSupply it was the motor. Replaced with a universal one from century $74 plus needed bracket $30. Very well worth it. Yeah could tell right away that it was blowing full power at the vents unlike before. Heat is sooo high here in south Texas. 🔥🔥🥵
@@frankmontez6853 Thanks for the update, glad to hear that you have it fixed! Here in Alberta we just went through a heat wave of 40°C which is 104°F, so I think we got a little taste of what weather is like in Texas. To not have a AC to help cool down your home would be pretty exhausting!
My furnace has been making sounds similar to the popping and banging you associate with duct expansion but I don’t have forced air. Should this be an immediate concern?
Thanks for watching. There is also other metal inside the furnace housing that can expand so it might not just be the ducts. If your furnace runs properly then its likely just expansion. Monitor it and see if anything changes over time.