Q: A/C intermittently started turning off

asked by on

The A/C compressor in my vehicle is having some issues. Intermittently it started turning Off (while driving) and sometimes the A/C compressor will restart by pressing “Off” on the A/C panel and then pressing “Auto” again. This process does not always work, but sometimes it does. When I told the local dealership about this, they had a difficult time locating the problem. They have checked the a/c pressure - normal. Checked the relays but no avail. They ended up just performing a refrigerant refill. It was a temporary fix only because after a week the problem came again. Could it possibly be the contacts having a problem somewhere on the A/C compressor or relay - or what do you think is causing all of this?

Intermittent problems can be such a pain to diagnose, as the problem is not always present or reproducible. This system is controlled on and off by a refrigerant pressure switch that has been known to drive some Insight owners insane because the pressure switch will cause the system to just stop working at times and even shutting down the AC system may not reset the system to work.

If the pressure switch has not been replaced, then that is the first place to start. The refrigerant should be reclaimed and refilled to specification during the course of the repair. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the proper equipment and certification to diagnose, service, and repair your AC system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. A/C intermittently started turning off

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is this a transmission problem and if so does this mean the entire transmission needs to be replaced?

You should certainly let the insurance company know that your car has not been returned to its condition from before the accident. As for why your car is bucking on acceleration, I can make a few guesses, but the...

Q: DRL System Light on

Q: How should small children be seated?

Like infants, small children must be seated correctly in your car to ensure safety. Most states have very specific height and weight restrictions concerning child seating – consult your state’s DMV (Department of Motor Vehicles) for the rules that apply...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...