What are the causes of compressor damage?
3 Answers
Compressor damage can be caused by: 1. Insufficient refrigerant in the system; 2. Blockage in the outdoor unit's main return pipe filter; 3. Dirt or blockage in the compressor's return pipe filter; 4. Abnormal wear of the compressor; 5. Insufficient cooling of the motor; 6. Burning or abnormal contactor contacts; 7. Abnormal power voltage; 8. Introduction of copper chips, oxide scales, or debris into the compressor during installation; 9. Low viscosity of lubricating oil in the liquid refrigerant. Solutions for compressor damage: 1. Add refrigerant; 2. Clean the main return pipe filter; 3. Clean the suction filter; 4. Replace the compressor; 5. Replace the refrigeration oil in the system.
Last time my compressor broke down, it cost me nearly 3,000 yuan, which still hurts to think about. The main reason, I believe, was inadequate maintenance—either insufficient or deteriorated lubricant, causing increased internal friction in the compressor, leading to gradual wear and eventual seizure. It's like driving in summer when refrigerant leaks aren't promptly refilled, forcing the compressor to work harder, overheating, and burning out electrical components. Additionally, aging or loose drive belts can prevent the compressor from turning properly or cause slippage, accelerating damage. Foreign objects entering the system, such as dust or metal debris left uncleaned during repairs, can jam the piston head. I recommend paying attention to unusual noises or poor cooling in the A/C system, regularly checking the lubrication system, and replacing the refrigerant oil before major issues arise. Car maintenance is like taking care of your health—small checks save big trouble.
Common causes of compressor damage include poor lubrication—reduced or contaminated oil increases internal friction, leading to abnormal piston movement and potential jamming. Refrigerant issues such as leaks or moisture contamination can corrode valves or form ice blockages, overloading the compressor. Belt system failures—insufficient tension or wear—can prevent the compressor from operating properly. External damage, like road debris impacts or vibration loosening components, is another factor. I've also noticed frequent electrical problems, such as clutch coil short circuits or oxidized contacts. For prevention, make it a habit to schedule professional AC servicing at least once a year to clean the system and ensure proper lubrication. Avoid cheap, low-quality replacement parts and always use OEM refrigerant for safety and reliability.
