Q: AC not working

asked by on March 24, 2016

The AC is not working. It looks like the compressor is not engaging.

An AC compressor not engaging is usually the result of one of four different reasons.

  • The A/C belt has broken
  • There is no electrical power to the A/C compressor
  • Third there is low or no refrigerant in the A/C system
  • The compressor itself has seized

One step you can take on your own, is to open the hood with the engine off and visually inspect the A/C belt. If there is one present, then the problem is elsewhere. Since we are dealing with refrigerant, I recommend enlisting the assistance of a certified mechanic, such as one from YourMechanic, to come by and diagnose why your A/C is not working. They will have the experience and specialty tools needed to diagnose and service your A/C system. They will quickly be able to determine if you are simply low on refrigerant, have an electrical issue or need to replace the AC compressor due to failure. They will also have the equipment needed to safely discharge and recharge your AC system and get your A/C system blowing cold again.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

all doors lock only by inserting key in passenger side door and locking

Your central locking system may have been designed with a control module in the circuit. This is a small computer that is responsible for controlling the different functions of a particular system. It is possible that the module for your...

How do I create a MyKey?

The MyKey feature allows you to program certain keys. These keys restrict certain driving functions to promote safe driving. To create a MyKey. Press the Setup button until you see “Press Reset to Create MyKey.” Press the Reset button....

Oil Loss

If you lost all the oil in your engine after driving for 30 minutes, without any signs of an oil leak, then you need to put in oil until it is full to see how much oil was used. If...

Related articles

Symptoms of a Bad or Failing AC Belt
If your car squeals when you turn on the AC, has cracks in the AC belt, or is unable to defrost the windshield, you may need to replace the AC belt.
How a Car's Heating System Works
The The sun sets, and the air has a chill. You pause to flip your jacket collar up, and you walk briskly to your car door and slide into the driver's seat. Once you start your car, it’s only moments...
Why Does My AC Rattle When I Turn It On?
Common reasons why a car AC system makes a rattling noise is due to a failing AC compressor, worn serpentine belt, or worn out AC compressor clutch.