4 Signs Of A Failing Car AC
A properly working air conditioner is a must for summer comfort when driving. Unfortunately, auto ACs can fail, but the good news is that most problems can be quickly diagnosed and repaired.
1. Weak Cooling
The most obvious sign of a failing AC is weak cooling. The air may fail to get down to the coolness you expect from the temperature setting, or it may fail completely and only blow hot air. The cause could be something as simple as a refrigerant leak to something as major as the need for a new AC compressor. An inspection of the system will turn up the culprit so that you can schedule a repair.
2. Loud Compressor
Does your car make weird noises when you turn on the air conditioning, but the noises stop as soon as you turn it back off? If so, then the problem is likely a failing AC compressor. Noises of a failing compressor can vary from high-pitched squeals to rough rattling sounds, depending on the components within that are actually failing. If the compressor is making noise, shut off the AC until you can have it looked at by a repair service.
3. Tripped Fuses
Although failing compressors often make noises, they don't always get loud before they fail. Sometimes the first sign that something is wrong is that a fuse trips. This is a result of the compressor overheating and causing the fuse to trip off for safety reasons. When this happens, the AC system won't work at all, but it will begin to function again if you replace the damaged fuse. One tripped fuse can be ignored, but if it happens repeatedly then it is time to have the entire AC system and compressor inspected for damage.
4. Refrigerant Leaks
Your air conditioner can't produce cool air if there is no refrigerant in the system. You may be able to spot refrigerant leaks under the car if wet spots appear for no known reason. Moisture on the refrigerant lines can also indicate a leak. Leaks can occur due to holes in the lines, failed seals, or as a result of a blockage in the line. Your service tech will replace the damaged lines and seals. They will then recharge the system with fresh refrigerant.
Contact an auto shop in your area to schedule an auto air conditioning system service if you suspect problems with the compressor.
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