Air Handler Wiring for Beginners (Fan Relays & PSC motors)

Basic air handler wiring for beginners. Learn wiring and schematic reading necessary for beginners to develop solid diagnostic skills.
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[@user-qu3bd6tm1j]

You are the best of all the time brother AN EXCELLENT TEACHER THANKS

[@JerseyMikeHVAC]

You are most welcome

[@edinaldomanuel8329]

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!

[@JerseyMikeHVAC]

Wow, thank you!

[@BretWrightSTUFF]

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

[@JerseyMikeHVAC]

They still sell fan relay boards without molex connections. Or are you trying to do something different?

[@rezamohammadi7480]

Thank you s😊o much

[@joec9616]

This guy is hands down the best I’ve seen for HVAC

[@user-yf5sg9eg1i]

You have no idea how much your videos help me, thank you brother for taking the time to teach

[@JerseyMikeHVAC]

No problem. Glad you're getting a lot out of it!

[@user-hp9xc8dq5y]

Well done and thank you!

[@andrekamber]

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.

[@JerseyMikeHVAC]

Glad I could help

[@kurisu9103]

Don't ever stop uploading please thank you🖤

[@samsonandarige396]

Great explanation!!

[@stevenloewen8875]

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.

[@JerseyMikeHVAC]

Nice job!

[@williemejias-yc2ie]

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!!

[@JerseyMikeHVAC]

Thank you!

[@joeseda8102]

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.

[@JerseyMikeHVAC]

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!

[@robertsmitg6884]

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

[@JerseyMikeHVAC]

You are most welcome

[@wd8557]

You are one of the few guys that goes over diagrams. Keep up the good work

[@JerseyMikeHVAC]

Will do. Thanks

[@gotchaplumber]

Great video!

[@robertmunguia250]

Very well explained! Better than a trade school.

[@JerseyMikeHVAC]

Thank you

[@KirtJames-fk7mv]

Thank you 😌 I been working on the exact same handler and these videos help tremendously.

[@JerseyMikeHVAC]

Very welcome

[@aaronfox5808]

Great video

[@kevindick7485]

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.

[@destineewynn2849]

great presentation thank you for taking the time to explain

[@abrahamlizardo86]

Very comprehensive break down. Awesome job.

[@scottcrowley2061]

Nice.

[@tonye.5661]

Excellent presentation of hvac wiring, now I have a better understanding how the blower and thermostat and contactor work.

[@creatorkal8416]

Best wiring diagrams explanation I've ever heard.

[@JerseyMikeHVAC]

Thanks!

[@urbraindead8366]

Earned yourself a fellow Jersey subscriber. Thanks for sharing this information.

[@JerseyMikeHVAC]

No problem. Thanks for subbing.

[@RedWhiteNBlade]

By far the best explanation ive seen of the old relay style wiring. Thanks guy

[@JerseyMikeHVAC]

Thank you, brother.

[@mikeavilez3994]

ThAnk you for this video I Appreciate it. It really helped me out big time

[@tcbryant5035]

This is the best explanation I have seen!

[@JerseyMikeHVAC]

Thank you

[@MrRoooodrigooo]

Gracias por enseñar 😮❤

[@migueldominguez7962]

Great job very detailed!!

[@brianmcdermott2430]

It was very well explained.

[@FernandoLarios-uc9lh]

Good job thanks for class

[@joaquinsandoval5152]

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

[@JerseyMikeHVAC]

Glad it helped

[@superdeviljuice1390]

Great job man I learned a lot

[@JerseyMikeHVAC]

Good!

[@bigairic4961]

Most informative videos I've found on KZbin. 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.

[@JerseyMikeHVAC]

Will do. Glad you found the channel too!

[@larryprice6321]

Thank you , thank you

[@pochikyanharutyun4511]

Excellent job thank you so much

[@JerseyMikeHVAC]

You are very welcome

[@mariusm3595]

Fantastic video !

[@JerseyMikeHVAC]

Thank you very much!

[@thanhnguyen-su6bj]

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 .

[@JerseyMikeHVAC]

Thank you. I will certainly do more of that with the schematics.

[@davidnunez7889]

Awesome video I learned so much just off one video. I know the components but struggle with wiring diagrams.

[@JerseyMikeHVAC]

Glad it helped

[@ezequielruiz3295]

Excellent

[@JerseyMikeHVAC]

Thanks

[@corruptedbrain6]

thank you 😊

[@JerseyMikeHVAC]

Welcome!

[@shawnpatriciashalabieh5063]

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

[@JerseyMikeHVAC]

Thank you. I do plan on doing some stuff covering heat strips

[@brandoncorrea511]

Another video killed it

[@samhaazratechnicalsupport]

Good sir ❤❤❤

[@SK-qc6fb]

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.

[@JerseyMikeHVAC]

Most likely just shorted it out while working on it. Very easy to do. Just replacing the fuse should be fine.

[@JamesL5150]

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?

[@JerseyMikeHVAC]

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.

[@butlerstouchHVAC]

great video

[@JerseyMikeHVAC]

Thanks!

[@jerseyscaler445]

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?

[@JerseyMikeHVAC]

The W1 should be the power feed in from the stat to activate the heat strips. The other should be a common.

[@johnraylangstonjohnraylang5924]

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]

What voltage are you getting out of the secondary side of the transformer? 15v there too?

[@robertcarullo4926]

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.

[@JerseyMikeHVAC]

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.

[@robertcarullo4926]

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

[@8joh58]

Hey Mike Iam your fans I like your video a lot , Iam here Jersey, and u?

[@JerseyMikeHVAC]

Bergen/Passaic county area in North Jersey here.

[@8joh58]

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

[@JerseyMikeHVAC]

@@8joh58 Where are you located?

[@9videoguy]

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

[@JerseyMikeHVAC]

I still have them up on my channel. Try going to the channel page and see if you can find them there.

[@patrickpeterman8736]

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

[@JerseyMikeHVAC]

I would need the model numbers of the blower and unit it's going into to check.

[@patrickpeterman8736]

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

[@patrickpeterman8736]

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

[@garciajuarez9677]

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

[@jamessawyer6891]

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.

[@JerseyMikeHVAC]

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.

[@whirlwind8825]

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

[@JerseyMikeHVAC]

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.

[@toupsclassroomtoupsclassro9557]

how long did it take you to learn all of this

[@JerseyMikeHVAC]

A bout 3 years or so. But still learning. Never ends.

[@toupsclassroomtoupsclassro9557]

@@JerseyMikeHVAC it is a great informative video one that I will try and learn as well. Excellent Job! ty

[@DavidLee-fy7rd]

Where can I get my schematic

[@JerseyMikeHVAC]

www.manualslib.com/manual/1555347/Goodman-Aruf-14-Series.html?page=21#manual

[@raybosflorida4928]

??? neer seen motor?? is it ecm module motor??

[@JerseyMikeHVAC]

PSC motor. Permanent Split Capacitor.

[@trevmint5615]

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]

It's not a common. It's a 240v motor. That's a power leg.

[@trevmint5615]

@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

[@JerseyMikeHVAC]

@@trevmint5615 It's a common terminal for 2 circuits. Not an actual common as in neutral/ground.

[@trevmint5615]

@@JerseyMikeHVAC that's what I've been thinking and waiting for someone to say. Thank you. You really are very good help.

[@JerseyMikeHVAC]

@@trevmint5615 No problem. Thank you.

[@patrickpeterman8736]

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

[@WilliamNicholsLC]

open a school dude...or just run an online class, you'll make millions and help thousands of future techs..

[@JerseyMikeHVAC]

Doubt I'll ever make millions, but a school or course is definitely in the future plans.

[@Eddy63]

Great explanation vid ... 1st time viewer & 1st time subscriber ... Thx

[@JerseyMikeHVAC]

Thank you

[@I_name_All_my_guns]

Liked and subscribed

[@JerseyMikeHVAC]

Thank you