5 Reasons Your Air Conditioner Might Not Be Working

As the temperatures rise, we all reach for our button, knob, or switch in our vehicle to turn on our air conditioning. But, if all your

car is producing is fetid, warm air instead of refreshing, cool air then you’ve got an air conditioning problem. Here are 5 common reasons why your vehicle’s air conditioning system might be having a problem.

5 Reasons Your Air Conditioner Might Not Be Working

1. There’s a refrigerant leak.

Think of refrigerant in your A/C like the oil in your engine – it’s vital to keep it functioning properly. Unfortunately, refrigerant leaks are more likely to happen in the winter as the system isn’t being used as often, so we don’t notice them until we want to use our A/C. Some air conditioner problems can be caused by lack of use which causes the seals within the system to dry up and leak.

2. The cooling fan is defective.

When the cooling fan breaks, your car only blows warm air, compromising the cabin air’s quality. There can be several reasons why a cooling fan is not working (excess debris, blown fuse, electrical issues), so it’s best to have it diagnosed by a professional.

3. The condenser or radiator is defective.

When your condenser isn’t working properly, the high-pressure vapors exiting the compressor aren’t cooled, restricting airflow.

If your condenser is broken, it will leak refrigerant, and your A/C will stop working entirely. Also, many tubes and seals are part of the condenser that can wear over time, causing leaks or breakages.

A broken radiator can cause a multitude of problems in addition to the fact that your air conditioner is no longer working. Having a professional diagnose the issue can tell you if you need to fix it or if you’ll need to replace the condenser or radiator entirely.

4. A faulty A/C compressor.

If you are experiencing no cool air or only a low amount of cool air is coming out of the vents, a faulty A/C compressor might be the culprit. If your cabin air is much warmer than usual and you hear loud noises or high-pitched whining when your compressor should be running, it’s likely failed.

5. You have an electrical issue. 

While sometimes the easiest to fix, electrical issues can also be the hardest to pinpoint. Some A/C problems can be caused by loose wires, damaged connections, blown fuses, or damaged temperature sensors. The longer you let an electrical issue remain, the more likely you could experience acid buildup. Acid buildup can damage and corrode components so severely you could need a new A/C unit entirely. If you feel that there might be an issue, have a professional look at it to determine the exact problem.

If your air conditioning has stopped working, don’t wait to get it addressed — turn to VIP! We offer FREE A/C checks where our Certified Automotive Professionals will check your A/C system for any issues including pressure in your system and the temperature of the air coming out of your dashboard vents. Schedule your FREE A/C check TODAY!