No cold A/C

Tiny
SEAN HORGAN
  • MEMBER
  • 2015 CHEVROLET EQUINOX
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 30,000 MILES
I don't think the compressor is turning on. The engine cooling fan also does not turn on. The display inside the car says A/C on but no cold air just heat or air temperature air.
Friday, July 26th, 2019 AT 12:17 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome to 2CarPros.

It's a bit odd that this new of a vehicle would have lost enough Freon to prevent the compressor from engaging. However, I don't know the mileage so it is possible. Here is a link that explains the most common cause for an AC not to work:

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

Lets start with the AC compressor fuse (#31) and the relay (#62). Both are located under the hood in the power distribution box. I have attached a pic of the fuse box and highlighted both the fuse and the relay. If you can find another relay with the same part number, switch the two and see if that makes a difference, but check the fuse first.

____________________________

Here are a few links to help with checking the fuse and relay:

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Here is a link that explains how to test a relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

___________________________________

If you find the fuse and relay to both be good, then we need to check if it is low on Freon. The best way to do this is with an AC manifold gauge set. I realize that most people don't own one, so I will provide directions for adding Freon. When you do this, the unit you get should have a gauge on it. If you purchase the small cans that require the hose to be attached, make sure you have a hose with a gauge so you will know if the pressure is too low or okay.

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

Let me know if this helps or if you have other questions.

Take care,
Joe
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Friday, July 26th, 2019 AT 7:56 PM

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