How to Repair a Compressor?
2 Answers
For issues with the compressor motor part, poor sealing of the compressor suction and exhaust valves, or thermal protector failure, replacement is the recommended solution. For compressor seizure or cylinder jamming faults, repair can be attempted first. The specific methods are as follows: Knocking Method: After turning on the compressor, use a wooden hammer to tap the lower half of the compressor to vibrate the stuck internal components and get them moving. Capacitor Start Method: Connect a capacitor with a larger capacitance than the original one to the circuit for starting. High Voltage Start Method: Use a voltage regulator to increase the power supply voltage before starting. Pressure Relief Method: Release all the refrigerant from the system before starting.
I previously had a car with a broken air conditioning compressor and tried to fix it myself. First, I needed to check if it was low on refrigerant. If there was no cold air, it could be due to a leak or the compressor bearings being stuck. I used a pressure gauge to test the system pressure and listened for any hissing or grinding noises. It turned out that the bearings inside the compressor were worn out, and it needed to be removed and replaced with new parts. However, never attempt to disassemble it directly, as the high-pressure refrigerant is dangerous and can harm the skin if leaked. Specialized tools are required to recover it. So, I stopped the car, turned off the AC, and took it to a repair shop. They replaced the compressor, recharged the refrigerant, and now it blows cold air again. Regular maintenance, such as cleaning the AC system, can help reduce issues.
