Looking for advice on HVAC

a reply to: Grimpachi

Can you double check those numbers? I don’t think that product number is correct

originally posted by: Tribeoneunited
a reply to: Grimpachi

Have you opened up the module? Often one of the large capacitors inside the epoxy burns up. Those can be replaced with some TLC with a capacitor from an electronics store.

Yeah I have it opened up. If you are talking about that black thing about the size of a dime I did check it with my tester and it is showing continuity.

BTW this is my circuit board.

Link

And this is my Module

link

a reply to: Grimpachi

Yes that would be the control board capacitor. Continuity doesn’t tell capacitance. If it’s not burnt up it’s probably ok. You would need to remove it and check with meter to k low for sure

originally posted by: Tribeoneunited
a reply to: Grimpachi

Can you double check those numbers? I don’t think that product number is correct

My eyesight is crap. The zeros may be Ds.

This is what I see

fv4cnf005t00aaaa

I will go get a magnifying glass and recheck.

a reply to: Grimpachi

ca-manufacturer-documents.s3.amazonaws.com...

originally posted by: Tribeoneunited
a reply to: Grimpachi

Need the air handler make and model. Do t provide the serial or I’ll know where your house is.

lol

I stopped myself from putting that down.


As for carrier, it says "carrier"

That could be confusing

a reply to: Tribeoneunited

Yes that would be the control board capacitor. Continuity doesn’t tell capacitance. If it’s not burnt up it’s probably ok. You would need to remove it and check with meter to k low for sure

It looks fine but if I can 100% determine that the module is bad I will remove and test it. I don't want to do any soldering if I don't have to but I won't argue with a $5 fix if it is bad.

ca-manufacturer-documents.s3.amazonaws.com...

Thank you so much.

That would have made things so much easier.

a reply to: Grimpachi

resource.carrierenterprise.com...

a reply to: Grimpachi

Take the motor end covers off, inspect windings and coatings, if looks good and ohms ok then problem is most likely module or control board as you’ve said.

If control board send high power and low volt (24v) speed signal then its the ECM.

Could be wiring between ECM and motor but that would be rare in my experience.

a reply to: Tribeoneunited

I was looking at the trouble shooting and just went out to test the wiring harnes again.

I am getting power to 1 & 12 but not 1 &14


I really hope it is as simple as the board


Again, thank you.

a reply to: Grimpachi

Can you tell me offhand how to test BLK on my circuit board?

I watched a video and they said to test to neutral.

What is neutral? It isn't common, is it?

www.amazon.com...=sr_1_4?crid=1WWF2SK3AKMDC&keywords=HK61EA005&qid=1653530188& s=industrial&sprefix=hk61ea005+%2Cindustrial%2C76&sr=1-4

Neutral is common of 24 volt circuit. a reply to: Grimpachi

Sooty meant 12 volt circuit
a reply to: Tribeoneunited

a reply to: Grimpachi
# man I’m sorry, common could be either depending what you are looking at. If you are looking at the 12 Vdc it’s pin1
If you are looking at the 24 Vac common is grounded side of transformer.
Long day

Black is pin 7
a reply to: Grimpachi

a reply to: Tribeoneunited

Oh, I understand about the long day.

My eye is fogging up making it hard to see and I really should just chill, get some sleep till the morning and tackle this with a fresh start.


You have helped a lot. The manuals and diagrams should get me back to having AC soon.

Hey! I know a good Russian mechanic! Him and his wife came from Russia 30
or so years ago and he worked 3 jobs while his wife got her PHD. She now runs her own practice and he is retired.
We laugh sometimes when we talk about how sad it is to see the propaganda work so well on lazy minded individuals who have vocabulary limited to the catch phrases perpetuated by their idols and who's arguments are based on character assaults.

I’ll be sure and see what he thinks about your comment next time I work at his mansion, maybe we could start a feud too, like the one you apparently have with the OP.

Respectfully,
Your non Russian hating new found target.

a reply to: SirHardHarry

a reply to: Grimpachi

make sure it isn't just the capacitor. It's a super easy fix if that's the issue. And call an HVAC guy, an old one.

a reply to: Grimpachi

HVAC guy here, and your fix seems doable if the motor isn't bad, however that's an entire process that will take you a lot of effort to find out.

You won't find a parts house selling used equipment.

Best bet is to get a new aftermarket motor for your air handler.

Your air handler is 12 years old, the blower went out finally after 12 years. There is a reason they are warrantied for 10 years.

Buying a replacement motor is your best option, if you shop properly and do it yourself it won't be more than $250.

Get aftermarket, it's just as good as OEM nowadays.