My AC seems to be going in and out?

DREV0012

MEMBER
2010 HONDA CRV
2.4L
4 CYL
2WD
AUTOMATIC
160,000 MILES

Hello! My AC seems to be going in and out. The blower keeps going but the air will be cold here and there, and then the same temp as the outside air for a while. It has been going in and out like that for a few days.

Thursday, April 6th, 2023 AT 12:40 PM

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,702 POSTS

It sounds like you are low on a refrigerant charge.

Here is a guide to help you check and recharge the system:

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

This guide may help as well:

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

Please go over these guides and report back.

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Friday, April 7th, 2023 AT 10:35 AM

DREV0012

MEMBER
36 POSTS

Thanks! My pressures are reading about where they should (50, 140). The A/C seems to not be coming on at all anymore. The clutch fuse is good and the clutch relay seems okay (I swapped it another and didn't notice a change.) The A/C fan is spinning it doesn't sound like the clutch is engaging, at least I don't hear the click I used to when it kicked on. Any ideas of what may be happening?

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Friday, May 12th, 2023 AT 1:22 PM

KEN L

MASTER CERTIFIED MECHANIC
47,702 POSTS

Yes, it sounds like the clutch coil went bad but to confirm it lets use a test light at the power wire to the compressor clutch. Here is a guide to help and I have included how to change the clutch coil out in case you need it. You will need to discharge and recharge the system.

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

and

https://youtu.be/4EqdrBVb0sY

Check out the images (below). Please let us know what happens.

Images (Click to make bigger)

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Saturday, May 13th, 2023 AT 10:13 AM

DREV0012

MEMBER
36 POSTS

Thanks Ken! I’ll check that power connection. The A/C was in and out a couple of days ago and worked all day yesterday. Would a bad coil work intermittently like that?

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Monday, May 15th, 2023 AT 6:56 PM