A/C intermittent on hot days

Tiny
TINNOV
  • MEMBER
  • 2011 HONDA CRV
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
Recently, my car has been having intermittent A/C problems. Whenever the outside temperature is over about eight five degrees F, the compressor will turn off. I will be driving along, everything is fine, then the vent air starts to warm and I can smell the condensation evaporating off the coils. It will stay off for in excess of ten minutes. I have observed it not working for over an hour. Parking, shutting down, removing key, and restarting has no effect.

I took it to the dealer and they evacuated it, refilled it, "replaced a relay", and charged me $400.00. Had no effect whatsoever.

I took it back today and they said I needed a new condenser coil, evaporator coil, and compressor clutch. I sense that they have no clue what is going on.

Suggestions?

Thanks in advance!

P.S. - I do not have much experience with car repair, but do electronics work. I know my way around a circuit board and understand general engineering/mechanical principles.
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Monday, July 10th, 2017 AT 3:37 PM

5 Replies

Tiny
KEN
  • ADMIN
Hello,

This sounds like a classic compressor clutch coil failure. When the A/C is not working take a test light and check to see if it getting power. Here is a guide to help you:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

and this will give you an idea of what you need to do if it is bad:

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Please let us know what happens, we are interested to see what it is.

Cheers, Ken
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Tuesday, July 11th, 2017 AT 2:57 PM
Tiny
TINNOV
  • MEMBER
Thanks for the information. I will throw a volt meter in the back and next time it cuts out. I will check it.
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Wednesday, July 12th, 2017 AT 11:26 AM
Tiny
KEN
  • ADMIN
Please let us know what you find.

Cheers, Ken
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Wednesday, July 12th, 2017 AT 3:39 PM
Tiny
TINNOV
  • MEMBER
So I was driving along and heard a sound I hadn't noticed before. It sounded like someone in the distance had honked their horn, then the A/C stopped working for a while, just as described above. I didn't get a chance to pull over and check the power to the compressor clutch coil, but it wasn't much of a stretch to imagine that the compressor clutch tried to (and failed to) engage. I had the clutch and coil replaced and all seems well now.

Thanks!
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Wednesday, July 19th, 2017 AT 10:49 AM
Tiny
KEN
  • ADMIN
Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Wednesday, July 19th, 2017 AT 11:10 AM

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