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- เผยแพร่เมื่อ 24 มิ.ย. 2019
- Thermostat not working Honeywell thermostat troubleshooting. How to test a home thermostat for problems if AC or Furnace not turning on. Bypass thermostat with a jumper wire to jump-start your system.
Disclaimer: I'm not a professional technician, just sharing my personal experience and if you find my video useful, please be careful and perform all repairs at your own risk. Thank you. - แนวปฏิบัติและการใช้ชีวิต
82°!
As soon as you said that my father raised up out of his grave screaming , "who touched the thermostat, I told you not to touch the thermostat, what're we rich all of a sudden now!?", reset the thermostat down to 67° & stumbled back to the graveyard mumbling about " kids these days"!
Thank you so much! You turned a miserable day of troubleshooting into a quick fix! Thanks again!
Glad I could help, and thanks for watching!
My son and I used this to troubleshoot my wireless thermostat, I saved hundreds of dollars thank you!!!
Good to hear it, and thanks for watching!
This video was the absolute BEST! if it was my thermostat that was causing my a/c to not work, Id be very bummed paying some electrician couple hundred dollars to change my thermostat. This video provided all the info I needed. Brilliant suggesting just trying the fan cause I have one of those programmable units that takes a degree to figure whether the problem is the unit or my inability to get the "wake, daytime, night, start, finish, Mon-Sun" all or even partially correct. Noting 24 volt shock is nothing helped, so you do not have to figure where the hell on your fuse box is the thermostat breaker. The paperclip tool is ingenious, and lastly suggesting buying the same unit (I didn't want the program nonsense), but to skip all the rewiring was a tip I couldn't turn down. THX!!!
Glad you found the video helpful, and thanks for the detailed comment :)
This was so helpful in revealing that our thermostat was indeed working right. We ended up after a couple videos like this saving a lot of $$$ on a big costly repair by having a better idea what was wrong with our HVAC. It ended up being a blower motor. We are very grateful. Still a big repair but saved a ton. Thank you.
Glad it was helpful!
Thank you for showing how to easily change batteries.
Vrey goos welxome shwring gues all thanktou gues all frineds wwlcome ....
Outstanding -- solved my problem in the first 10 seconds. The rest of the video was very informative and invaluable. Thank You,
Kudos to you!!!
Thanks for watching!
A really great video that made a potentially complicated problem very easy to resolve!
Thanks
Glad it helped!
Thanks so much! I used a paper clip wrapped in electrical tape as you suggested and determined that my HVAC system works fine and the thermostat is dead. I'll replace the thermostat myself. You saved me an expensive service trip!
Glad it helped!
Thank you for the video, we bypassed troubleshooting and just changed thermostat and AC started working !!!
Great job!
Thank you for the GREAT INFO! i just paid $110 to an hvac guy who said your thermostat doesn't work. He did nothing to fix it. I jumped on YT saw your explanation about the batteries and the C port, put in new batteries and fixed the problem! I wish I had seen your video 1 day before. Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Too bad the HVAC tech couldn't tell you to change the batteries, but I'm glad you fixed it yourself!
If that AC guy told you just to change the battery, he couldn't make $110.
Thank you, this is SO helpful! Just had our furnace serviced twice in four months and now I think it's a bad thermostat.
Also, love the Swedish accent!!! 💜
Great to hear it, and thanks for watching!
Omgosh it worked. My ac turned back on. I now know it’s the cover and not the unit. It still just gives me the inside temp and not the setting temp. I was a little worried it now won’t turn off. I don’t want it constantly running. But it did shut off at 76*. I can do that till my new cover comes. 😊 Thank you! Your channel was the only one I found that really helped me out.
Good to hear it!
My suspicions were correct and your quick test confirmed it. Thank you.
Great to hear!
Thank you very much for teaching us to know if it is the thermostat that is bad or if it is another problem with the system.
Glad it helped!
Thank you much. Cant believe this worked.
I had just recently gotten my AC replaced. With a one year old used one and kept the same 1855 thermostat in my old house. I took off the cover and it did not work. Went to panel on the unit and tried again. This time it worked. So after looking around a bit more I looked into my drain line since they installed a overflow kill switch. My drain outside had gotten clogged up. Unclogged it and turned on right away. Thank you for this video.👍👍👍👍👍👍👍👍
Good detective work! Thanks for watching.
you are the only video I found so far that mentioned that the front of the thermostat may just be bad. I have a blank front case but power comes through back plate.
Another very well done video. I now know so much more about that thermostat. Thank you. Thumbs up!
Glad it was helpful!
ordered a new thermostat today bc of this video, thank you my man
Thanks for watching!
Thanks‼️used the jumper wire replaced the thermostat back in business
Nice work!
thank you for making and sharing this video! it's extremely helpful!
Glad it was helpful!
I am very happy that I found the problem and solved it thanks to your video!
Good to hear it!
Thanks for your help. I have a single pole thermostat going to wall heater. I have replaced the thermostat two weeks ago and now it will not operate the heater. If I remove thermostat and cross wires the furnace kicks on so nothing wrong with furnace. This is the second time I've replaced the thermostat in 2 years. Do you know what I'm doig wrong? Thanks in advance.
Thank you! This video helped me figure out the problem and fix it in minutes.
Great to hear!
Nice explanation! Thanks
Thanks for watching!
75 thumbs down came from the electricians loosing money because of this awesome video!
LOL, thanks for watching!
That was funny
...As an electrican I'm this is all hvac guys stuff
@@Your-Self in
I have that same thermostat Honeywell and my unit was not getting cold barely blowing , I looked up videos and found u first, I listen than I changed my batteries 🪫 now my house is cooling good. Thanks 🙏🏾
Glad I could help
Very helpful. You make it easy to understand
Glad to hear that!
My thermostat, does not turn off the system at all. It was on for few hours, I turn the fan from auto to on and if finally stopped blowing cold air. Everything that you say was very helpful. Thank you.
Thanks for watching!
This helped me a lot. Thank you
Glad to hear it!
Thanks for sharing that tip! . Bad at trouble shooting skills on my side
Thanks for watching!
I really appreciate For the video, saved me a lot of money, god bless you.
Glad it helped
What a blessing... this video!
Glad it was helpful!
I have a green wire in W and a red wire in Rc... I've had an electrician come out and fix it but its usually stopped working after about a week.
You're amazing
Life saver
Thank you ❤️ 👍👍👍
Glad it helped!
Mr. YourSelf: Thank you very much for your great videos! can you please make short video on outdoor unit short cycles reasons?. Thanks
Here are a few reasons that the outdoor condenser unit is short cycling:
Weak batteries in the Thermostat.
Loose wires at the Thermostat, Air-Handler/Furnace, or Condenser.
Clogged air filter or the outdoor condenser unit.
The Contactor going bad.
The Capacitor going bad.
The outdoor Fan going bad.
The Over-Flow Switch is full of condensate water and tripping.
Refrigerant leak, low Freon, iced up tubes, clogged metering device, bad compressor... the last line is a major problem for which you need to call a tech.
You're the best thanks.
Thanks for watching!
Omg thank you for ur video!!!! Saved me a lot of trouble!!!! 🙏🏽🙏🏽🙏🏽
I'm so glad!
Is it safe switching to on.
Excellent!!!
Thanks!🙏👍
Thanks for watching!
Fantastic! Thanks 😁. And I love your voice 💜
Thank you too!
I have the same problem thank you very much
Thanks for watching!
My problem is my thermostat is directly across from my inside unit I also have the outside AC fan but the problem is when I plug in the unit across from the thermostat it stays on whether or not I flip switches off on the thermostat how do I fix that
The fan comes on but the rest of the thermostat will not work. We replaced the thermostat and used wire strippers to expose a fresh set of wires. Even with the new thermostat, the fan comes on but the rest of the thermostat will not work. Do you know what the issue could be? Thanks for sharing!
Very well done video. Thank you
Thank you too!
thanks so much, now I have to replace my thermostat :). Subscribed!
Good to hear it!
Now that was good. I'd never do it, but it was good!
Thanks for watching!
This was very helpful
Thanks for watching!
Thanks man! This worked for me
Great to hear!
Thanks, so helpful.
Glad to hear it!
But what happens after clicking hold and everything looks fine but it decides to go back. Like I want mine to be at 70 and I do as you instruct but after a few seconds, it goes back to 84. And it keeps climbing up. Help?
This worked, wire to R and G and the fan turned on. Bad thermostat. Going to buy a new one. Thank you!
Great, thanks for watching!
@Alam Vai typically, R - power, G - fan, C - common, W - heat, Y - cooling
Agreed!
What does it mean if the "set to" temp and "heat on" is crazily blinking? It doesn't do that when it's over on cool..? It's a weird blinking and the "set to" temp is also blinking the temp up and down by a degree or two. It does take batteries, but there were no batteries when we bought the home a year and half ago. It's hardwired. Can you help? Is it the thermostat or something else? Thank you!
@YourSelf I have experienced some Honeywell thermostats which partially works and doesn't! Some will work only in the cooling section know as the RC. RC will make contact with both G (Fan) and Y (compressor) not in the heat mode between R & W for heat Or Vice versa!
Thank you very much for your video. For the cooling setting, my ac system keeps running and cannot be turned-off. What cause these problem?
If your AC keeps blowing air and actually is cooling, the condenser contactor could be stuck closed (welded). Research AC CONTACTOR.
Great Video
Thanks for watching!
Great explanation
Thanks for watching!
When I press the arrow, nothing happens anymore. Only when I hit "set" I can change temps. Also it's ignoring any set temps and is cooling for hours without stopping.
I have a Honeywell RLV430 for an electric baseboard heater in my bathroom. It says 32 deg but backwards on the screen. Doesn’t take batteries, tried everything but it just won’t come on. Starting to think my thermostat is bad. Any suggestions. Also will not reset
We have the same Honeywell thermostat, ours only show inside temp, nothing else and it doesn't respond to any button presses anymore. We checked the breaker but that's not the issue.
hi! Idk if you'll see this but my thermostat just won't turn off, It's been on off for ten minutes now, but air is still coming out, if anyone has any advice that would be wonderful, thank you.
Make sure the fan is on auto and not on
When I turn on cold the inside temp appears on left side of thermostat and nothing happens. I turn on heat and heat works. Why no cold?
(Not an expert) make sure there is a jumper between R and Rc.
I have one wire going to rc and no c wire connected. How do i proceed instead.
My issue is it kept turning back on with or without the face of thermostat without staying off.
Thanks. Help me alot..
Glad to hear that, and thanks for watching!
Thank you for your video. You have mention about C terminal and batteries.
Question 1: Without batteries, I wouldn't able to see the temperature numbers. Is it a good idea for everyone?
Question 2: With the batteries and C terminal, can I have both of these items?
You need either batteries or the C terminal connected for the thermostat to work at all. But it's best to have both in case of a power failure, so you don't lose your programmable thermostat settings.
Thank u so much!
Hello where can i fine that exact thermostat please
Thank you.
Thanks for watching!
Great Job,but I changed the battery of thermostat but it still blank no works.
Very good video
Thanks for watching!
Great video. Question: I put in fresh batteries. But the heat furnace does not go on when Thermostat is on "Auto" and I up the temp above room temp. But when I put Thermostat on 'Manual Fan", the fan turns on. But it only circulates air, not heated air. Do you think it's my Thermostat or the furnace?
Ok
My exact issue
Thank you for sharing vid, I did just that changed batteries. But what is strange heats on all day and turns down at night. Question, on the back shows Electric or Heat Pump....or Gas or Oil? Mine is in Gas
If you have gas-furnace, keep the setting on Gas/Oil.
What if it electricity
Mine was the clicking noise from the reverse valve. Honeywell is doesn't like colmens hvac.
thank you nice and easy
Thanks for watching!
Thanks for the great video! Question for u. Our thermostat Keeps turning the fan on and off as we usually keep it on auto. The furnace downstairs seems to be working as we are able to turn the heat on/off however the fan keeps turning on then a few mins later back off. We put new batteries that doesn't seem to be the issue. We removed the thermostat off the wall completely and it is still clicking itself on and off. Is that a thermostat issue or a wire issue?
If you have a single thermostat and removed it completely from the wall, this could be a wiring problem or computer board in your Furnace/Air Handler problem.
If you removed just the face plate from the thermostat, the problem could be with the back plate.
thank you man!!
I just tried and it appears that my batteries I had replaced were still not good. Just put new ones and it seems to work. If it does got ripped off by ac company
Thanks a ton!
Thanks for watching!
I have almost the same thermostat just not programmable. The temp reads 76 when off. If I turn on and set lower than temp reading it will shoot up to 81 degrees even while blowing cool air. The light on the thermostat will also flash on several times while running, not cycling on and off. Please advise.
This is definitely weird. What's behind the wall where the thermostat is attached to? Maybe washer/dryer running at the same time, warming up the wall? Maybe the wires are crossed and AC is running together with furnace/heater? Maybe the thermostat is simply bad... hard to say without being there to investigate.
My thermostat will black out & sometimes will not reach temp set for heat. Have had no problems with air.
How do I change from Celsius to Fahrenheit it’s stuck idk how to go back
Best video ever.
Glad it was helpful!
My thermostat is blowing out heat , instead of cool air ... yes I put it on cool , auto or cool ,on .. I need help
Same here!
Our cool air sometimes is not cool.its like the thermostat doesnt dire up a spark to start the cool air..had unit cked dirst week in June..all is well outside unit..but they did not ck thermostat..if we turn it off wait 10 minsnthen turn it on..it starts up..put in new batteries..help!
Saved me. Thanks
Glad it helped!
It worked 😊 thanks!
Thanks for watching!
YourSelf I need to replace my thermostat but I cannot find the exact same model that you have. Is there anything that you can recommend?
Find something within your budget, and if you don't use the "scheduling feature," get the cheapest model.
Great video👍thanks
Thank you too!
I was wondering if you can help me out. I have a Lennox pulse heater about 15 to 21 years old. It might a pulse 21. I can’t find the filter on the furnace. The only filter I find is the vents upstairs. Is that it.
The filter is usually located around the furnace, but I'm not sure exactly where on the Lennox Pulse, sorry.
@@Your-Self thanks
I have a white and black wire thst came off my thermostat and none of them is connected to C. I have a pro 1 t-701. Could you please help?
Hello. My A/C works fine, however, when the set temperature is reached, the compressor and fan don't turn off together. Only the compressor turns off, and the fan blows continuously, and I have it set to AUTO. When the temperature goes back up again, the compressor turns on. But fan is running 24/7. Could this be a thermostat to relay issue?
The thermostat switch from AUTO to ON could be stuck internally, so the thermostat needs to be replaced (try wiggling the switch back in forth vigorously to unstick it first).
Or it could be a wiring issue. If the wire from the G terminal is touching the wire from the R terminal, the fan will continuously run. These wires without the insulation could touch inside the thermostat, inside the wall, or inside the Air-handler/Furnace.
Gas company came over and checked the furnace, and glass it’s working great. But I can’t get the heat to reach the set temp, it seems to be stuck between 17-19 degrees Celsius.
If your furnace continuously runs, maybe the duct in the attic or basement is torn/damaged or partially disconnected so you are losing some warm air to outside. What is your thermostat is set to, and what is the temperature outside?
YourSelf it’s currently -18. It seems to work fine until it gets cold out, and than it won’t reach any higher. Maybe I should check the venting.. thanks
What if the thumastat says change the ball ?
My set to and cool on are both blinking ???
"Cool on" blinking is normal for a few minutes while refrigerant pressure equalizes inside your AC.
"Set to" I'm assuming is blinking because you need to CONFIRM the temperature you set it to.
I think I missed something. I have an upstairs thermostat that doesn't work but my downstairs works fine. I tried the steps and nothing is happening. I need help 😫
Heat in one zone on boiler won’t shut off with thermostat
Mine is hooked into RC and small jumper to R. The thermostat just stays at the same temp no matter heat or ac with new unit can I still jump R to G in order to test or do I need to remove the jumper between Rc and R?
The R and Rc are the central point of power for both Heating and Cooling.
So they have to be jumpered together and, essentially, is the same thing. Use either one to connect to the G terminal.
However, if the unit is new, maybe it's not connected correctly at the thermostat or the Air Handler/Furnace?
I have an issue where my cooling tower constantly runs. A service tech said it could be the thermostat, but did not sound certain. What would your thoughts be?
I'm not sure exactly what your referring to with cooling towers I've never Hurd of a residential cooling tower there usually part of some kinda industrial application like nuclear power plants and all a thermostat does is control the power on and off when a set temperature is called for
I have my thermostat to go as low as 50 but it stays at 72 the entire day. Is my thermostat bad or might I have other problems with the HVAC?
If your HVAC system is constantly running, the thermostat should be OK. But the system may not be capable of cooling any lower. Check the air filter(s) and that none of the return grills are blocked by the furniture or something else. And the next step; would be to call a tech to evaluate your system and maybe check the refrigerant level.
what about when I turn to auto, there is no air. when I turned it to on and Cool, there is air but the air is not Cool, it's just fan air. what is the problem here?
Yep, that's just air like a fan. Freon? compressor? You better call in a professional, sorry :
Hi, please help! My system ac works inconsistently, most of the time it blows cold air like it should. But on occasions for no reason the compressor will make a struggling sound and it starts but no cold air comes out, just room temperature... like a fan, it looks like I see this when we need it the most. Once the temperature is reading past 83 I will almost assure you the air will not come out cold.
When your central A/C stops cooling and just blows room temperature air, go outside and look at the Condenser unit. The large fan should be rotating, if it's not, the capacitor inside the condenser is probably dying and needs to be replaced. If you are not comfortable working with electricity, please call someone who can do it for you.
YourSelf the capacitor was changed a year ago; so that’s the puzzling thing, we will have to pass it onto a professional I think. Thank you for your time and suggestion.
If the capacitor was replaced by a cheap China-made capacitor, it could fail again in 1 year. However, if the outdoor fan is spinning, you may need to charge up the system with refrigerant, but yes, it's better to pass it to a professional. Good luck!
So if I turn on my fan and the air turns on what does that mean
Our furnace wasn’t coming on. Thermostat had no led readings on it, pulled the cover off and replaced aaa batteries. Still no led readings so removed batteries and they were very hot! Not sure if thermostat needs to be replaced, any thoughts?
Did you put batteries in with the correct polarity?
I'd take the cover off again and experiment with batteries. The LED screen should light up in your hands, even before you put it back on the wall. If the LED is dead, try other batteries. Otherwise, the thermostat is bad.
Mine I set it up to a temperature say 73
Once it's reached the temperature instead of stopping it blows cold air.
What can it be