A Guide to Troubleshooting Tips for a Malfunctioning Car AC Compressor

A car air conditioning compressor plays a vital role in keeping the inside of your car cool and comfortable, especially during summer. However, a broken compressor can not only make driving unpleasant but also cause expensive repairs. To avoid this, you must determine the root cause of the issue promptly.

In this article, we will guide you through some common problems and offer tips on how to troubleshoot them.

Causes that Create Malfunctioning in Car AC Compressor

The AC compressor is an integral part of any car’s air conditioning system. It helps in regulating the temperature of the car’s interior by compressing the refrigerant and then circulating it through the air conditioning system.

However, if the AC compressor malfunctions, it can lead to a breakdown of the entire air conditioning system. One of the main causes of malfunctioning in car AC compressors is a lack of maintenance.

Over time, the compressor’s internal parts can wear down or become damaged, leading to reduced efficiency and eventual failure. Additionally, low refrigerant levels can put excessive strain on the compressor and lead to premature failure.

Therefore, it’s crucial to take good care of your car’s air conditioning system, including regular maintenance and timely replacement of worn-out parts, to avoid any unexpected breakdowns on the road.

Tips for a Malfunctioning Car AC Compressor

Identify the Symptoms

The first and most important step is to identify the symptoms of a malfunctioning AC compressor. If your AC system releases warmer air than usual, blows air intermittently, makes unusual noises or vibrations, or emits musty odours, there is a significant possibility that the compressor is not functioning correctly. Once you have identified the symptoms, it is easier to solve the problem.

Check the Power Supply

Sometimes, the cause of a faulty AC compressor is due to a lack of power supply. Check the compressor’s electrical connection for frays or breaks in the wiring. Also, ensure that the fuse or relay that controls the compressor is not blown. If you find any defects, replace them immediately.

Look for Leakages

If the compressor is not working efficiently, it could be due to low refrigerant levels that may be caused by a leak. If your car’s AC system leaks refrigerant, it could damage other parts of the AC system. Firstly, check the condenser and hoses for any visible signs of liquid pools. If you see an oily residue or leak marks, you have a refrigerant leak, and it requires immediate attention.

Inspect the Clutch

The clutch is an essential part of the AC compressor, and if it is faulty or worn out, it can cause the compressor to malfunction. Check if the clutch engages when you turn on the AC. If the clutch does not engage, the compressor will not receive the power it needs to function correctly. Check the clutch’s connectors, wiring, and belt tension to detect any issues.

Seek Professional Help

Sometimes, despite your best efforts, the problem might not go away. In such cases, it is best to seek professional help. However, choose a reliable and experienced technician who can detect the issue and provide solutions. Some issues, such as a failed compressor, require the services of a certified technician.


A malfunctioning AC compressor is not only frustrating, but it can also be detrimental to your car’s health. Identifying the root cause of the issue promptly can help avoid costly repairs or replacements. By following the tips and checking the symptoms mentioned above, you can troubleshoot most compressor problems yourself. However, if you cannot solve the issue or feel unsure of what steps to take, seek professional help. Ensure that you address the issue as soon as possible to maintain the safety and efficiency of your car’s AC system.

Visit https://a-premium.com/ac-compressor to learn more about car AC compressors.



Herbert is a technology enthusiast who loves to share his findings on his blog. He is always exploring the latest gadgets and software, and he enjoys helping others learn about new technology trends. Aaron has been involved in technology for many years, and he is passionate about sharing his knowledge with others.

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