General car air conditioner repair problems

A broken air conditioner can become unusable during hot and humid summers. The small inconvenience, inoperable A / C for the rest of the year is undoubtedly an emergency when mercury rises. The most likely reasons for a unit to be in Fritz are:

Refrigerant leak

Refrigerant is a substance that cools the air coming out of the A / C vent. When properly pressurized in a closed-loop system, the refrigerant evaporates into gas, which is later used to cool the interior space. However, leaks in this closed system can reduce refrigerant levels and interfere with operation. In other words, the fans just get hot. It’s a fairly common car air conditioner repair problem in older cars, and the challenge is actually finding the leak. Reason? Unlike oil and antifreeze leaks, the driver does not find a puddle of liquid under the vehicle as the refrigerant escapes. Often, oily residues are the only sign that something is wrong. Also, keep in mind that leaks can occur almost anywhere in the system, including compressors, condensers, and evaporators. Therefore, the entire unit should be inspected frequently to properly diagnose and fix the problem.

Electrical problems

If the A / C unit does not work at all, it may be an electrical problem. Fuses, relays, pressure switches, and other electrical components can fail at any time due to aging or defects. When this happens, the system is designed to shut down automatically for safety reasons. The inevitable result is an air conditioner that doesn’t respond when switched on-even the lights don’t work. Only experienced mechanics have the knowledge and tools to isolate a problem with a diagnostic test.

Bad compressor

Another common car air conditioner repair problem for older cars is a worn-out compressor. The compressor, which is the heart of the unit, is responsible for circulating the refrigerant throughout the system. If it breaks down, the vents just blow warm. Age is the most common cause of compressor failure, but important components can also fail due to contamination and other defective components. Visual inspection of parts is often all that a mechanic needs to diagnose a problem. If it cannot be repaired, the compressor will need to be replaced.

Air filter clogging

A cabin air filter attached to the external air intake of a car’s ventilation system removes dirt, dust and pollution from the external environment before it is pumped inside. Clogged with all the debris collected by this filter can adversely affect air flow. If the A / C vent is sputtering or barely blowing, it is most likely due to an obstacle in the filter. In many cases, simply removing and cleaning this component will blow things back. It is an inexpensive automobile part, so it is recommended to simply replace it with a new one.

Repairs to these common car air conditioners can be completed by any qualified mechanic.