My channel is all about spreading the wealth of knowledge rather than locking it up. If you'd like to help me in that mission, you can buy me a coffee here: buymeacoffee.com/jerseymikehvac
In my 25 years of experience in HVAC/R, in Canada & USA, I would give you 1 million *s for your brilliant presentation, and I've never seen a presentation like this, so detailed. Congrats for your excellent teaching!
Jersey Mike, what is best move when you update the control board and the connections have changed to Molex..I have an old goodman air handler.. I see splicing in my future
Thank you brother for taking the time to make these videos for wiring diagrams this is something that I have struggled with and I have yet to find videos that really break it down in layman terms like you have thank you so much
I got to say, what an amazing video. The presentation and animation is right on point. Anyone who wants to refresh their skills whether a seasoned or beginner this is your video. Thank you for your time sir!!
I'm 3 years in the trade. Sadly, I learned more with you better than my teacher. That means a lot. Keep it going strong. I know it is not easy doing this teaching video. 🔥 at last most let go my friends hands 😅😂
Hello Ive got 30 yrs in & found your video to teach my 2 new helpers now I think they got it & how important the blower relay is esp when Heat strips are connected ..Thanks a bunch
Thank you Jersey Mike!! Had a local HVAC guy come out, and he said I needed a new air handler at a cost of $7-8000 to replace the entire unit because he said it was too complicated, and obviously didn't think to look you up online!! Took me the length of this video to have my air handler up and running.
He could have just been talking about if you had an R22 unit and since R410 units are no longer made and the new a2l r 454b units are being pushed out that's what he was talking about
@@keepthinking2666 No, he was just trying to make some $$. It works just fine now. Had another shop come out and add a small amount of refrigerant, but other than that it works as it should
I am SOOOO GRATEFUL for such an exemplary explanation of how a home HVAC system is normally setup. Your explanation is very easy to follow and understand. There are many videos online, but none as detailed for us DIY individuals. Just recently I had the AC fixed at my home, and this video gave me the knowledge and confidence to interact with the repairman and even impressing him with how well I understood how the system worked. The man was a great Tech and properly answered my questions and he actually allowed me to figure out what was wrong with my system! We had a great time interacting and he even ended up giving me a great discount for the job after he rewired the system. He will be replacing my 30+ year old HVAC system in Jan 2024. A great new friend to have, just because you took the time to help me understand how HVAC systems work. Thank you so very much.
Finding an experienced tech you know you can keep honest and trust is the best part of this. Those kinds of guys aren't a dime a dozen. Glad my video helped get you there!
1st time seeing any of your videos. Just subscribed and look forward to viewing more. This video should be used as an example of the BEST way to do a presentation! Thank you.
@@JerseyMikeHVAC I want to ask a question. Can I safely go one speed slower on my Goodman air handler? It is variable speed and I use it for shop heat with the 10, 000 watt heat kit. I didn't know if the coils would overheat or the sensors on the coils take care of that? Thank you.
Awesome piece of information for my tool box! Great video very informative well done. Will be looking for more informational videos right here. Thanks Mike 👍
Hello Mike! I just found this video. Excellent job! I have the exact same Goodman set up and card in my system. I've replaced the outside capacitor last year. I replaced the inside air handler capacitor this year and the DI-POLE BREAKER on the furnace which acts as a cut off for the unit instead of a door switch. One of the two pole breakers went squishy and wouldn't "click" over when switched. Now, my inside blower fan stopped working. Anyway, I did the entire diagnostic in reference to your video. . I checked the power up to the 240v side of the transformer and then direct charged the blower fan from there - it worked. So, I checked the 24v side of the transformer to the common on the control side of the board and got 24v as my reading. I decided to buy a new board for my system. However, I noticed a difference in your board and mine. Yours has a 3AMP fuse and mine doesn't. Would it be possible to just solder a fuse holder and fuse onto the contacts located just below what is labeled "JW1" on the board? Do i need this fuse? What is it protecting? Thanks man! You're the best HVAC guru on TH-cam!
Impressed , on how well you explain with schematic, I'm still new in HVAC and it's not easy for me to follow the schematics but you do an amazing job. Thanks for sharing knowledge
Most informative videos I've found on TH-cam. I can't tell you how happy I am I found your channel. Before the winter months come rolling in I would love to see a video on wiring up electric heat and heat pump troubleshooting.
i like how you go over with this diagrams. You make it clear and where to look for steps by steps. Thank you for sharing. Hopefuiiy that you will make more videos related to schermatic .
Great job Mike .. this is the best video explaining the cooling sequence of the airhandler... are you making second one for the heat sequence.. ? Great job Mike
Thanks sir. Your presentation has provided me more than what I am currently enrolled in at a Tec. College in my area. I am in my first class Electricity for HVAC . Due to time management this process you have demonstrated in 12 minutes what should have been done in my 16 week class . Book we are using - Electricity for HVACR , Joseph Moravek.
Jersey Mike saved me again, first the Nest w/Zone valves, now on my old Goodman Air handler, no 24v from transf after changing condensor relay. .....found the 3amp fuse blown....dont know if i caused that by touching the wrong terminal or there was some back voltage from the relay failing??? Any thoughts? I only had the high voltage pulled, did not flip the air handler breaker....so the relay may have been energizer during the swap, didnt check it prior.
learning this over the past year, took a class for five weeks at PTech where I live, there not all the great, I have been buying property for 38 years, and the last 5 years been wanting to learn more about ac, I have better then average, Is there a class on line that goes over the whole process? Central air seems to be about 90% wiring.
I'm developing a full course myself, but it's probably a year out. I don't really know of any online that I could recommend. You may be better off just reading manuals and wiring diagrams, which is where I've learned most of what I know electrically.
ok thanks. from Staten Island myself. now in Florida. you recommend any good manuals? I understand electrical, I wired my whole house I built, so understanding the electrical isn't really an issue, but how one is running off the other, looping from one part to another, that kind of stuff. is there any good manuals for that? thanks for getting back. @@JerseyMikeHVAC
I have a goodman air handler with this exact set up as in the video. the relay on the circuit board went bad twice in one month. The first time, the filter was pretty clogged up and the blower would not turn off. It got so hot the circuit board actually melted some. After spending way too much $$$ just to replace the circuit board, the system worked again normally. Only one month later, I noticed blower motor would not turn off and house was not cooling much. Went in myself this time and after troubleshooting, found the relay was was not working again. Tracked down the circuit board locally and replaced and system working again. The second time, no burn marks and filter was clean. Could it be transformer causing relay to go bad? Thanks
How freely does the blower cage spin when turned by hand with the power off? Does it keep spinning freely or does it quickly slow down and stop? Sounds like you may have an overload issue which could possibly be cause by a high current draw from the blower itself. Could be the bearings or the motor.
Hi, I need help, my Rheem HVAC RF1T unit for apartment model and blower motor was changed to ECM genteq 1/3 ho 208/230 volt... connect it to medium speed T3 and when I do it, turn ON the thermostat is fine but when I put it on AUTO on thermostat and cold A/C turns on because the blower starts at maximum speed and doesn't let me sleep... I see that in the speed connection it has a green wire in T1 and a blue wire in T3... what should I do? I want it to be medium speed and not regulated.
Iam entering level I hvacr field for two year, Iam running the service call for rooftop unit, How to contact with u Mike? Iam looking forward to meeting u my greatest intructor Mr Mike…..thanks Eugene
I have a Mr cool 3ton universal heat pump. Running it currently only with a heat kit and no refrigerant lines connected to it. My board went on a power outage and i was sent another board. This board is different by 2 pins on the board. There are no longer in/out pins for the heat signal wire to connect to from the heat kit molex plug . Looks like a relay was once there ( telling from the old board) and now those pins are not there on on new board . The exit of one of those pins went to w1 . Should I run the red signal wire directly from molex plug to w1 . Maybe that relay connection was going bad on old board and they superseded the board with a better design?
Hello I have the goodman as you talking about This is what I'm dealing with . We have 220 volts on both legs. I can't get it to start up. I check the low voltage and it shows 15.09 volts. The red wire shows the same 15.09 volts. I touch the white and red together to see if it would start. Nothing then the yellow and green. Together nothing. Have 220 on both 50 amp breakers still nothing. So I'm stuck in the Georgia heat.
@JerseyMikeHVAC Okay Thanks for the reply. The two top poles are showing power 120 per pole. The bottom poles are showing 15.09 volts. After watching your video 5 time back to back. The power wire that should have 120 volts at all time at the blower motor is not there?
@JerseyMikeHVAC well I was checking the volts coming out of the breaker box in the house. As you know I have two lines running to the system. Both are 220. The top line is for the A/C system. The bottom line is for the Heat system. After checking from the house both lines are pushing 220 from the house outside to the unit. Top A/C has something that looks like a breaker but it looks to be a contact type breaker have power in and out. Now the bottom breaker has a off on states 45 amp. Well after checking it on both side is were the problem comes in. On side shows 124.9 volts the other side shows 19.40 volts? So I removed the wires from the and tested it again now I have 220 volts. That breaker must have some type of problem for it to let let power come thou the other side of that breaker. I'm sure that maybe the main problem.
Well after replacing that breaker now there's 19.48. On the low voltage side and have power on one leg of the blower motor. STILL WILL NOT START UP. MAYBE IT THE RELAY?
When you check for low voltage coming out of the transformer, make sure to disconnect the low voltage wires from it. You want to see if the voltage drop is still there on the transformer without a low voltage circuit attached to it. The reason why is because on a voltage drop problem like this, the problem is typically going to be because of a high resistance problem with a switch, a relay or the board itself. Possibly even the fuse. With the low voltage wires disconnected from the transformer, this test will tell you if that resistance is indeed in the low voltage circuit somewhere if after disconnecting it you read the normal 24v off the transformer. If you are still reading below 24v, then you have a high voltage issue or a transformer problem. Since you already have 120v on each leg to the transformers primary side, then it can likely be a bad transformer if you're still not getting 24v (most readings I take are actually higher than 24v, typically 26-28v). If you confirm you have normal voltage off the transformer without the low voltage circuit attached to it, you now need to go through your low voltage circuit to see where the voltage drop is occurring. Remove the low voltage wire from the R terminal on the fan relay board and test that R terminal for voltage. If you're reading less than 24v there, see if you're getting a voltage drop across the fuse. Test one side of the fuse for 24v then the other side. If you see the drop there, replace the fuse and if it still persists, then the fuse connections on the board are the problem. If you do read 24v at the R terminal with the R wire disconnected, then your issue is downstream somewhere. Put the R wire back on the board and remove the wire to the G terminal on the board. Put the thermostat into cooling mode and test for 24v at the G wire itself where you disconnected it. If you still see 24v there, then there is a problem with the fan relay board itself. If you see a voltage drop on the wire, then shut the power off to the air handler and put the wire back onto the G terminal of the board. Go up to the thermostat and jumper R to G to bypass the thermostat. Restore power to the air handler. If the blower starts right up, may be time for a new thermostat.
Okay The problem was the transformer. How i have 26 volts. My question is the thermostat is a four hookup. It leaves me with a blue wire and the O wire that gos to the board. Can i use the O wire with yellow? And the blue wire cap it off.
I don't go by colors. I go by terminal to terminal. R from T-stat to R on relay board. G from stat to G on relay board. Y at stat directly to the outdoor contactor. Other wire from outdoor contactor to C on relay board.
@JerseyMikeHVAC I understand . I strace down each wire. From red to white to green to yellow. Again that leave me with two at the unit wires blue is coming off the side of the A/C contact that it maybe be the commen wire The O wire is coming off the the board. My question is what do I do with them. I have nit started the unit up until I here back from you to see what to do with them. I was thinking by your video to hook that O wire to yellow. And that commen wire to the white wire . Just asking.
What 2 wires are going to the outdoor contactor? Blue and what? What terminal is the O wire off the board connected to? I'm assuming your talking about the relay board in the air handler? Do you have heat strips or a heat pump or anything else aside from straight cooling?
@JerseyMikeHVAC THIS HAS A HEAT STRIP. They are two wires left over in the unit The blue wire is coming off the side of the A/C 240 contactor for the A/C . The other wire is as you said it's coming off the board O side. Them two wires I'm sure at one time came off a diffirent thermostat That had the O B terminal.. I installed a new Honeywell 4 wire hookup. White Green yellow and Red. Check voltage there 26 volts. Just asking the wire coming off the side of the 240 contactor is that a common wire. And the O wire coming off the board is that the shuttle value wire.
Do you have a heat pump system? By shuttle valve do you mean reversing valve? I'm not familiar with what " board O side" means. What board located where? In a heat pump system there are 2 boards. One inside one outside. There should be 2 wires to the 240 contactor outside. One is coming from Y at the thermostat. The other is common that should go back to common on the relay board in the air handler. I cannot answer the rest without further clarification.
Why is the common wire taking power to the fan motor? And why is there 120v going to the common terminal on the transformer? I always understood common was ground
@JerseyMikeHVAC why does it go through a common on the relay and why is there a c beside the transformer. I know you're busy if you don't have time to reply I understand
MIKE, I need some help if possible- I replaced the blower motor 1/6hsp; it arrived with one cord -one side is hot the other neutral is neutral the same as common?? anyway the 2 ends of the power cord I put the RED WIRE(POWER WIRE" IN THE FEMALE SOCKET Pin socket# 4- I have at the bottom of the Molex connector three WIRES IN SUCCESSION PIN#7 BLACK - PIN#8 WHITE - PIN#9 BROWN; WHERE DOES THE NEUTRAL END OF THE POWER CORD PLUG INTO PIN# ?? WHEN I TOOK A COPY OF THE WIRING INTO THE SOCKET THERE WERE 3 BLACK WIRES IN POSITION 1-2- AND 3- THE RED WIRE WAS IN POSITION # 4 DIRECTLY U8NDER POSITION 1 DO I PUT THE JUMPER WIRE BACK INTO POSITION 1 AND 3; AND PLUG THE NEGATIVE SIDE OF THE POWER CORD INTO PIN SOCKET # 2 or plug into position 7 ?? hope you can help; thank you PATRICK.P
ITS A COLEMAN/EVCON DGAT056BDF BLEND AIR THE UNIT ONLY PRODUCES HEAT AND AIR FLOW; NO A.C.-I WISH I UNDERSTOOD HOW TO READ THE DIAGRAM; WAS NEVER EXPOSED TO ANY OF THIS; THANK YOU, PATRICK PETERMAN FROM MONTCLAIR, NEW JERSEY !! THERE ARE ONLY-- 4 PIN SOCKETS THREE ACROSS THE BOTTOM 3AND 1 UP THE SIDE@@JerseyMikeHVAC
MIKE THE BLOWER MOTOR IS A OEV6016 CENTURY EVCON(322P289) thanks again, Mike !!@@JerseyMikeHVAC by the way I,m not looking for a free lunch- just let me know !! Patrick
Little confused. Ok you said that when it gets a call for heat that the tstat sends 24v to g and w. Wouldn’t that throw off the relay by switching no and Nc to Nc and NO? Fan speed would be hi and not low like it needs to be. Makes more sense to just send 24v thru w that way the relay coil isn’t energized and the purple wire can send the 120v thru the com to the blower resulting in the speed being low. I’m no tech, just following the circuit.
You're following the circuit but your timing is off. The 120v on the purple wire dead ends at the relay during system operation due to the NC contact being open. It does not power the blower motor. The red or black wire on COM does that, which also determines blower speed. When the stat stops calling for heat, 24v to W and G is lost, heat relay opens, fan relay reverts back to default position and purple wire loses 120v. So when the NC contact recloses, there is no power there on the purple wire to run the blower, even though the NC contact is closed. It is done like this in the event the relay that activates the heat strips get welded in the closed position. In that case, the purple wire will continue to have 120v on it even though the system is not calling for heat and W is not powered, because the relay is welded closed, it no longer needs a 24v signal to close the heat relay. It's permanently closed and always passing 120v through. This is when the purple wires serves it's only purpose: to force the blower motor to run as long as the heat strips are on, even if the thermostat W and G terminals are not being powered. Because the fan relay NC contact is closed when the stat is not calling for heat cycle, the 120v can now pass through the fan relay to power on the blower motor. It is an emergency function, not normal operation.
Mike, how familiar are you with newer RV ACs? I’m attempting the Nest install on a GE RV AC. They, like others, have the proprietary control board and Thermostat. I’ve seen a few videos of people making it work with a 24vac transformer or power adapter and 24/12 relays. I have all that. I talked GE into sending me the unblurred copy of the control board diagram, my issue is that I’m unsure of what wire to connect where on the Nest Learning Thermostat. Anything you can do to help?
What happened to the video of you going down the list of components to diagnose an ac? And the video of you hooking up all the components of a funace (i think it was a furnace) one by one? I thought i saved them and now i cant find them
I first started learning and confused the COM to blower as a neutral common in 120v system....The relay is conducting 120 v to the blower so why it is called a COM is confusing
Yeah that's the down side to learning electrical. Same term can have more than 1 meaning. When it comes to relays, a COM is a wire that can attach to multiple circuits. So the relay in this video, for example, the COM wire going back to the blower motor can connect to either the NO circuit or the NC circuit that the relay is attached to. It's a wire that's "common" to both circuits.
SORRY I BOTHERED YOU; I PAID AN HVAC TECHNICIAN TO EXPLAIN THE NEEDED INFORMATION FROM THE DIAGRAM; IT TOOK 1 MINUTE FOR HIM TO EXPLAIN; THANK, S FOR YOUR TIME,;, PATRICK. P
My channel is all about spreading the wealth of knowledge rather than locking it up. If you'd like to help me in that mission, you can buy me a coffee here: buymeacoffee.com/jerseymikehvac
In my 25 years of experience in HVAC/R, in Canada & USA, I would give you 1 million *s for your brilliant presentation, and I've never seen a presentation like this, so detailed. Congrats for your excellent teaching!
Wow, thank you!
Jersey Mike, what is best move when you update the control board and the connections have changed to Molex..I have an old goodman air handler.. I see splicing in my future
They still sell fan relay boards without molex connections. Or are you trying to do something different?
Thank you s😊o much
This guy is hands down the best I’ve seen for HVAC
Thank you brother for taking the time to make these videos for wiring diagrams this is something that I have struggled with and I have yet to find videos that really break it down in layman terms like you have thank you so much
You are most welcome
You are one of the few guys that goes over diagrams. Keep up the good work
Will do. Thanks
I got to say, what an amazing video. The presentation and animation is right on point. Anyone who wants to refresh their skills whether a seasoned or beginner this is your video. Thank you for your time sir!!
Thank you!
I honestly cannot tell you how much I appreciate these videos. Please, keep these coming.
I just ran into this in the field, was so confused until I saw the wiring diagram haha learn something new every day
I'm 3 years in the trade. Sadly, I learned more with you better than my teacher. That means a lot. Keep it going strong. I know it is not easy doing this teaching video. 🔥 at last most let go my friends hands 😅😂
👍 Awesome. Love to hear it.
This man literally spoke every word I needed to hear and I’m going to get my system running perfectly now. Thank you, my dude.
Glad I could help
Best wiring diagrams explanation I've ever heard.
Thanks!
Hello Ive got 30 yrs in & found your video to teach my 2 new helpers now I think they got it & how important the blower relay is esp when Heat strips are connected ..Thanks a bunch
No problem. Glad it helped!
Very well explained! Better than a trade school.
Thank you
Very comprehensive break down. Awesome job.
You have no idea how much your videos help me, thank you brother for taking the time to teach
No problem. Glad you're getting a lot out of it!
Thank you Jersey Mike!! Had a local HVAC guy come out, and he said I needed a new air handler at a cost of $7-8000 to replace the entire unit because he said it was too complicated, and obviously didn't think to look you up online!! Took me the length of this video to have my air handler up and running.
Nice job!
He is the best
He could have just been talking about if you had an R22 unit and since R410 units are no longer made and the new a2l r 454b units are being pushed out that's what he was talking about
@@keepthinking2666 No, he was just trying to make some $$. It works just fine now. Had another shop come out and add a small amount of refrigerant, but other than that it works as it should
I see few video but you and your videos are amazing.I don’t speak fluent English but I understand everything you say great technique. Thanks
Very welcome
I am SOOOO GRATEFUL for such an exemplary explanation of how a home HVAC system is normally setup. Your explanation is very easy to follow and understand. There are many videos online, but none as detailed for us DIY individuals. Just recently I had the AC fixed at my home, and this video gave me the knowledge and confidence to interact with the repairman and even impressing him with how well I understood how the system worked. The man was a great Tech and properly answered my questions and he actually allowed me to figure out what was wrong with my system! We had a great time interacting and he even ended up giving me a great discount for the job after he rewired the system. He will be replacing my 30+ year old HVAC system in Jan 2024. A great new friend to have, just because you took the time to help me understand how HVAC systems work. Thank you so very much.
Finding an experienced tech you know you can keep honest and trust is the best part of this. Those kinds of guys aren't a dime a dozen. Glad my video helped get you there!
Excellent presentation of hvac wiring, now I have a better understanding how the blower and thermostat and contactor work.
Earned yourself a fellow Jersey subscriber. Thanks for sharing this information.
No problem. Thanks for subbing.
1st time seeing any of your videos. Just subscribed and look forward to viewing more. This video should be used as an example of the BEST way to do a presentation! Thank you.
Thanks and welcome
@@JerseyMikeHVAC I want to ask a question. Can I safely go one speed slower on my Goodman air handler? It is variable speed and I use it for shop heat with the 10, 000 watt heat kit. I didn't know if the coils would overheat or the sensors on the coils take care of that? Thank you.
Don't ever stop uploading please thank you🖤
By far the best explanation ive seen of the old relay style wiring. Thanks guy
Thank you, brother.
Hands down you never disappoint with your videos thank you
No problem. Thank you
This is the best explanation I have seen!
Thank you
You are the best of all the time brother
AN EXCELLENT TEACHER
THANKS
You are most welcome
Thank you 😌 I been working on the exact same handler and these videos help tremendously.
Very welcome
Awesome piece of information for my tool box! Great video very informative well done. Will be looking for more informational videos right here. Thanks Mike 👍
Simple, comprehensive, easy,clear...
Got 100 %🎉🎉🎉🎉🎉
Hello Mike! I just found this video. Excellent job! I have the exact same Goodman set up and card in my system. I've replaced the outside capacitor last year. I replaced the inside air handler capacitor this year and the DI-POLE BREAKER on the furnace which acts as a cut off for the unit instead of a door switch. One of the two pole breakers went squishy and wouldn't "click" over when switched. Now, my inside blower fan stopped working. Anyway, I did the entire diagnostic in reference to your video. . I checked the power up to the 240v side of the transformer and then direct charged the blower fan from there - it worked. So, I checked the 24v side of the transformer to the common on the control side of the board and got 24v as my reading. I decided to buy a new board for my system. However, I noticed a difference in your board and mine. Yours has a 3AMP fuse and mine doesn't. Would it be possible to just solder a fuse holder and fuse onto the contacts located just below what is labeled "JW1" on the board? Do i need this fuse? What is it protecting? Thanks man! You're the best HVAC guru on TH-cam!
great presentation thank you for taking the time to explain
ThAnk you for this video I Appreciate it. It really helped me out big time
Now that's a real tutorial. GOD Bless
Impressed , on how well you explain with schematic, I'm still new in HVAC and it's not easy for me to follow the schematics but you do an amazing job. Thanks for sharing knowledge
Glad it helped
It was very well explained.
Most informative videos I've found on TH-cam. I can't tell you how happy I am I found your channel. Before the winter months come rolling in I would love to see a video on wiring up electric heat and heat pump troubleshooting.
Will do. Glad you found the channel too!
Great job very detailed!!
i like how you go over with this diagrams. You make it clear and where to look for steps by steps. Thank you for sharing. Hopefuiiy that you will make more videos related to schermatic .
Thank you. I will certainly do more of that with the schematics.
Very good presentation.
Thank you!
This is amazing just brilliant how this presentation is good shit
Just what I needed thanks mike
Great job man I learned a lot
Good!
Well done video. Thank you.
Excellent job thank you so much
You are very welcome
Very helpful technical video post.
Great job Mike .. this is
the best video explaining the cooling sequence of the airhandler... are you making second one for the heat sequence.. ? Great job Mike
Thank you. I do plan on doing some stuff covering heat strips
great video
Thanks!
Thanks sir. Your presentation has provided me more than what I am currently enrolled in at a Tec. College in my area. I am in my first class Electricity for HVAC . Due to time management this process you have demonstrated in 12 minutes what should have been done in my 16 week class . Book we are using - Electricity for HVACR , Joseph Moravek.
You’re the goat!!!
Good job bro
Thank you.
Good job thanks for class
Fantastic video !
Thank you very much!
Awesome video I learned so much just off one video. I know the components but struggle with wiring diagrams.
Glad it helped
Great info and clear description! thanks for doing this. Any suggestions on finding schematics for old Carrier air handlers?
Great video
Thank you so much ❤
Jersey Mike saved me again, first the Nest w/Zone valves, now on my old Goodman Air handler, no 24v from transf after changing condensor relay.
.....found the 3amp fuse blown....dont know if i caused that by touching the wrong terminal or there was some back voltage from the relay failing??? Any thoughts? I only had the high voltage pulled, did not flip the air handler breaker....so the relay may have been energizer during the swap, didnt check it prior.
Most likely just shorted it out while working on it. Very easy to do. Just replacing the fuse should be fine.
God bless jersey🎉🎉🎉
Hi Mike, what if I just want to use heat, there is no ac, using a 90340. on a Gibson older unit 10 K, thank you Mike
Brilliant I love it
learning this over the past year, took a class for five weeks at PTech where I live, there not all the great, I have been buying property for 38 years, and the last 5 years been wanting to learn more about ac, I have better then average, Is there a class on line that goes over the whole process? Central air seems to be about 90% wiring.
I'm developing a full course myself, but it's probably a year out. I don't really know of any online that I could recommend. You may be better off just reading manuals and wiring diagrams, which is where I've learned most of what I know electrically.
ok thanks. from Staten Island myself. now in Florida. you recommend any good manuals? I understand electrical, I wired my whole house I built, so understanding the electrical isn't really an issue, but how one is running off the other, looping from one part to another, that kind of stuff. is there any good manuals for that? thanks for getting back. @@JerseyMikeHVAC
Great explanation vid ... 1st time viewer & 1st time subscriber ... Thx
Thank you
I have a goodman air handler with this exact set up as in the video. the relay on the circuit board went bad twice in one month. The first time, the filter was pretty clogged up and the blower would not turn off. It got so hot the circuit board actually melted some. After spending way too much $$$ just to replace the circuit board, the system worked again normally. Only one month later, I noticed blower motor would not turn off and house was not cooling much. Went in myself this time and after troubleshooting, found the relay was was not working again. Tracked down the circuit board locally and replaced and system working again. The second time, no burn marks and filter was clean. Could it be transformer causing relay to go bad? Thanks
How freely does the blower cage spin when turned by hand with the power off? Does it keep spinning freely or does it quickly slow down and stop? Sounds like you may have an overload issue which could possibly be cause by a high current draw from the blower itself. Could be the bearings or the motor.
Hmm…..how does the auto mode -fan on …mode work …am I right that auto mode goes through the outside contactor……good video …. 12:08
Great video!
Excellent
Thanks
Bless you
What keeps the handler on all the time? Will not shut off.
Hi, I need help, my Rheem HVAC RF1T unit for apartment model and blower motor was changed to ECM genteq 1/3 ho 208/230 volt... connect it to medium speed T3 and when I do it, turn ON the thermostat is fine but when I put it on AUTO on thermostat and cold A/C turns on because the blower starts at maximum speed and doesn't let me sleep... I see that in the speed connection it has a green wire in T1 and a blue wire in T3... what should I do? I want it to be medium speed and not regulated.
Thank you , thank you
Hey Mike Iam your fans I like your video a lot , Iam here Jersey, and u?
Bergen/Passaic county area in North Jersey here.
Iam entering level I hvacr field for two year, Iam running the service call for rooftop unit, How to contact with u Mike? Iam looking forward to meeting u my greatest intructor Mr Mike…..thanks Eugene
@@8joh58 Where are you located?
Thank you Sir 👍🙏
how long did it take you to learn all of this
A bout 3 years or so. But still learning. Never ends.
@@JerseyMikeHVAC it is a great informative video one that I will try and learn as well. Excellent Job! ty
Why are you so amazing
I have a Mr cool 3ton universal heat pump. Running it currently only with a heat kit and no refrigerant lines connected to it. My board went on a power outage and i was sent another board. This board is different by 2 pins on the board. There are no longer in/out pins for the heat signal wire to connect to from the heat kit molex plug . Looks like a relay was once there ( telling from the old board) and now those pins are not there on on new board . The exit of one of those pins went to w1 . Should I run the red signal wire directly from molex plug to w1 . Maybe that relay connection was going bad on old board and they superseded the board with a better design?
The W1 should be the power feed in from the stat to activate the heat strips. The other should be a common.
Nice.
thank you 😊
Welcome!
Another video killed it
Hello I have the goodman as you talking about
This is what I'm dealing with . We have 220 volts on both legs. I can't get it to start up. I check the low voltage and it shows 15.09 volts. The red wire shows the same 15.09 volts. I touch the white and red together to see if it would start. Nothing then the yellow and green. Together nothing. Have 220 on both 50 amp breakers still nothing.
So I'm stuck in the Georgia heat.
What voltage are you getting out of the secondary side of the transformer? 15v there too?
@JerseyMikeHVAC Okay Thanks for the reply.
The two top poles are showing power 120 per pole. The bottom poles are showing 15.09 volts. After watching your video 5 time back to back. The power wire that should have 120 volts at all time at the blower motor is not there?
@JerseyMikeHVAC well I was checking the volts coming out of the breaker box in the house. As you know I have two lines running to the system. Both are 220. The top line is for the A/C system. The bottom line is for the Heat system. After checking from the house both lines are pushing 220 from the house outside to the unit. Top A/C has something that looks like a breaker but it looks to be a contact type breaker have power in and out.
Now the bottom breaker has a off on states 45 amp. Well after checking it on both side is were the problem comes in. On side shows 124.9 volts the other side shows 19.40 volts? So I removed the wires from the and tested it again now I have 220 volts.
That breaker must have some type of problem for it to let let power come thou the other side of that breaker. I'm sure that maybe the main problem.
Well after replacing that breaker now there's 19.48. On the low voltage side and have power on one leg of the blower motor. STILL WILL NOT START UP. MAYBE IT THE RELAY?
When you check for low voltage coming out of the transformer, make sure to disconnect the low voltage wires from it. You want to see if the voltage drop is still there on the transformer without a low voltage circuit attached to it. The reason why is because on a voltage drop problem like this, the problem is typically going to be because of a high resistance problem with a switch, a relay or the board itself. Possibly even the fuse. With the low voltage wires disconnected from the transformer, this test will tell you if that resistance is indeed in the low voltage circuit somewhere if after disconnecting it you read the normal 24v off the transformer. If you are still reading below 24v, then you have a high voltage issue or a transformer problem. Since you already have 120v on each leg to the transformers primary side, then it can likely be a bad transformer if you're still not getting 24v (most readings I take are actually higher than 24v, typically 26-28v).
If you confirm you have normal voltage off the transformer without the low voltage circuit attached to it, you now need to go through your low voltage circuit to see where the voltage drop is occurring. Remove the low voltage wire from the R terminal on the fan relay board and test that R terminal for voltage. If you're reading less than 24v there, see if you're getting a voltage drop across the fuse. Test one side of the fuse for 24v then the other side. If you see the drop there, replace the fuse and if it still persists, then the fuse connections on the board are the problem.
If you do read 24v at the R terminal with the R wire disconnected, then your issue is downstream somewhere. Put the R wire back on the board and remove the wire to the G terminal on the board. Put the thermostat into cooling mode and test for 24v at the G wire itself where you disconnected it. If you still see 24v there, then there is a problem with the fan relay board itself. If you see a voltage drop on the wire, then shut the power off to the air handler and put the wire back onto the G terminal of the board. Go up to the thermostat and jumper R to G to bypass the thermostat. Restore power to the air handler. If the blower starts right up, may be time for a new thermostat.
Okay
The problem was the transformer. How i have 26 volts. My question is the thermostat is a four hookup. It leaves me with a blue wire and the O wire that gos to the board. Can i use the O wire with yellow? And the blue wire cap it off.
I don't go by colors. I go by terminal to terminal. R from T-stat to R on relay board. G from stat to G on relay board. Y at stat directly to the outdoor contactor. Other wire from outdoor contactor to C on relay board.
@JerseyMikeHVAC I understand .
I strace down each wire. From red to white to green to yellow. Again that leave me with two at the unit wires blue is coming off the side of the A/C contact that it maybe be the commen wire The O wire is coming off the the board. My question is what do I do with them. I have nit started the unit up until I here back from you to see what to do with them. I was thinking by your video to hook that O wire to yellow. And that commen wire to the white wire . Just asking.
What 2 wires are going to the outdoor contactor? Blue and what?
What terminal is the O wire off the board connected to? I'm assuming your talking about the relay board in the air handler? Do you have heat strips or a heat pump or anything else aside from straight cooling?
@JerseyMikeHVAC THIS HAS A HEAT STRIP. They are two wires left over in the unit The blue wire is coming off the side of the A/C 240 contactor for the A/C . The other wire is as you said it's coming off the board O side. Them two wires I'm sure at one time came off a diffirent thermostat That had the O B terminal.. I installed a new Honeywell 4 wire hookup. White Green yellow and Red. Check voltage there 26 volts. Just asking the wire coming off the side of the 240 contactor is that a common wire. And the O wire coming off the board is that the shuttle value wire.
Do you have a heat pump system? By shuttle valve do you mean reversing valve? I'm not familiar with what " board O side" means. What board located where? In a heat pump system there are 2 boards. One inside one outside.
There should be 2 wires to the 240 contactor outside. One is coming from Y at the thermostat. The other is common that should go back to common on the relay board in the air handler.
I cannot answer the rest without further clarification.
Why is the common wire taking power to the fan motor? And why is there 120v going to the common terminal on the transformer? I always understood common was ground
It's not a common. It's a 240v motor. That's a power leg.
@JerseyMikeHVAC why does it go through a common on the relay and why is there a c beside the transformer. I know you're busy if you don't have time to reply I understand
@@trevmint5615 It's a common terminal for 2 circuits. Not an actual common as in neutral/ground.
@@JerseyMikeHVAC that's what I've been thinking and waiting for someone to say. Thank you. You really are very good help.
@@trevmint5615 No problem. Thank you.
MIKE, I need some help if possible- I replaced the blower motor 1/6hsp; it arrived with one cord -one side is hot the other neutral is neutral the same as common?? anyway the 2 ends of the power cord I put the RED WIRE(POWER WIRE" IN THE FEMALE SOCKET Pin socket# 4- I have at the bottom of the Molex connector three WIRES IN SUCCESSION PIN#7 BLACK - PIN#8 WHITE - PIN#9 BROWN; WHERE DOES THE NEUTRAL END OF THE POWER CORD PLUG INTO PIN# ?? WHEN I TOOK A COPY OF THE WIRING INTO THE SOCKET THERE WERE 3 BLACK WIRES IN POSITION 1-2- AND 3- THE RED WIRE WAS IN POSITION # 4 DIRECTLY U8NDER POSITION 1 DO I PUT THE JUMPER WIRE BACK INTO POSITION 1 AND 3; AND PLUG THE NEGATIVE SIDE OF THE POWER CORD INTO PIN SOCKET # 2 or plug into position 7 ?? hope you can help; thank you PATRICK.P
I would need the model numbers of the blower and unit it's going into to check.
ITS A COLEMAN/EVCON DGAT056BDF BLEND AIR THE UNIT ONLY PRODUCES HEAT AND AIR FLOW; NO A.C.-I WISH I UNDERSTOOD HOW TO READ THE DIAGRAM; WAS NEVER EXPOSED TO ANY OF THIS; THANK YOU, PATRICK PETERMAN FROM MONTCLAIR, NEW JERSEY !! THERE ARE ONLY-- 4 PIN SOCKETS THREE ACROSS THE BOTTOM 3AND 1 UP THE SIDE@@JerseyMikeHVAC
MIKE THE BLOWER MOTOR IS A OEV6016 CENTURY EVCON(322P289) thanks again, Mike !!@@JerseyMikeHVAC by the way I,m not looking for a free lunch- just let me know !! Patrick
Little confused. Ok you said that when it gets a call for heat that the tstat sends 24v to g and w. Wouldn’t that throw off the relay by switching no and Nc to Nc and NO? Fan speed would be hi and not low like it needs to be. Makes more sense to just send 24v thru w that way the relay coil isn’t energized and the purple wire can send the 120v thru the com to the blower resulting in the speed being low. I’m no tech, just following the circuit.
You're following the circuit but your timing is off.
The 120v on the purple wire dead ends at the relay during system operation due to the NC contact being open. It does not power the blower motor. The red or black wire on COM does that, which also determines blower speed.
When the stat stops calling for heat, 24v to W and G is lost, heat relay opens, fan relay reverts back to default position and purple wire loses 120v. So when the NC contact recloses, there is no power there on the purple wire to run the blower, even though the NC contact is closed.
It is done like this in the event the relay that activates the heat strips get welded in the closed position. In that case, the purple wire will continue to have 120v on it even though the system is not calling for heat and W is not powered, because the relay is welded closed, it no longer needs a 24v signal to close the heat relay. It's permanently closed and always passing 120v through.
This is when the purple wires serves it's only purpose: to force the blower motor to run as long as the heat strips are on, even if the thermostat W and G terminals are not being powered. Because the fan relay NC contact is closed when the stat is not calling for heat cycle, the 120v can now pass through the fan relay to power on the blower motor.
It is an emergency function, not normal operation.
Gracias por enseñar 😮❤
Mike, how familiar are you with newer RV ACs? I’m attempting the Nest install on a GE RV AC. They, like others, have the proprietary control board and Thermostat. I’ve seen a few videos of people making it work with a 24vac transformer or power adapter and 24/12 relays. I have all that. I talked GE into sending me the unblurred copy of the control board diagram, my issue is that I’m unsure of what wire to connect where on the Nest Learning Thermostat. Anything you can do to help?
Not much to be honest. I might be able to take a look at the schematics you have and maybe figure it out, but I don't work with them.
What happened to the video of you going down the list of components to diagnose an ac? And the video of you hooking up all the components of a funace (i think it was a furnace) one by one? I thought i saved them and now i cant find them
I still have them up on my channel. Try going to the channel page and see if you can find them there.
??? neer seen motor?? is it ecm module motor??
PSC motor. Permanent Split Capacitor.
Where can I get my schematic
www.manualslib.com/manual/1555347/Goodman-Aruf-14-Series.html?page=21#manual
Good sir ❤❤❤
I first started learning and confused the COM to blower as a neutral common in 120v system....The relay is conducting 120 v to the blower so why it is called a COM is confusing
Yeah that's the down side to learning electrical. Same term can have more than 1 meaning. When it comes to relays, a COM is a wire that can attach to multiple circuits. So the relay in this video, for example, the COM wire going back to the blower motor can connect to either the NO circuit or the NC circuit that the relay is attached to. It's a wire that's "common" to both circuits.
SORRY I BOTHERED YOU; I PAID AN HVAC TECHNICIAN TO EXPLAIN THE NEEDED INFORMATION FROM THE DIAGRAM; IT TOOK 1 MINUTE FOR HIM TO EXPLAIN; THANK, S FOR YOUR TIME,;, PATRICK. P
Hi how are you sr. im just finish school hvac and i need help to fine job in the field i will like to contac you i live in brunswick area in jersey
open a school dude...or just run an online class, you'll make millions and help thousands of future techs..
Doubt I'll ever make millions, but a school or course is definitely in the future plans.
amazing go yankees
Great explanation!!