How to Detect a Faulty Compressor?
1 Answers
Detection methods for a faulty compressor: 1. Check the compressor operation status: ① Whether the drive belt is broken or loose. If the drive belt is too loose, it will slip, accelerate wear, and fail to transmit power. ② Whether there is noise inside the compressor; noise may be caused by damaged internal components, and internal wear will prevent effective compression. ③ Whether the compressor clutch is slipping. 2. Check the condenser and fan status: ① Whether the condenser fins are covered with dust. If the condenser fins are covered with dust, the efficiency of the condenser will be greatly reduced. ② Whether the condenser fan is operating properly. 3. Check the blower fan operation status: Operate the fan at "low, medium, and high" speeds. If there is abnormal noise or poor motor operation, it should be repaired or replaced; otherwise, the airflow will be insufficient. 4. Refrigerant level check: ① If a large number of bubbles are seen through the observation window, it indicates insufficient refrigerant. If water is poured onto the condenser to cool it and no bubbles are seen in the observation window, it indicates excessive refrigerant. ② Check for oil stains at the connections and seams of each device. Oil stains at the connections or seams indicate refrigerant leakage, and the relevant parts should be re-tightened or replaced. (A leak detector can be used to detect leaks.) 5. Check whether the HVAC valve or thermal control damper is closed and whether other damper adjustments are normal.
