Common fault causes and solutions of combined air conditioning units

Introducing the common fault causes and solutions of combined air conditioning units :

1. Power failure

Reasons: The power cord is loose, the power plug is damaged, the power switch is faulty, etc.

Solution: Check whether the power cord is firmly connected, replace the damaged power plug, repair or replace the faulty power switch.

2. Poor cooling effect or no cooling

Reasons: Refrigerant leakage, condenser dirt, evaporator condensation, etc.

Solution: Check whether there is any leakage in the refrigerant pipeline, repair the leakage point and fill it; clean the surface of the condenser to ensure good heat dissipation effect; clean the evaporator to ensure there is no condensation problem.

3. Compressor failure

Cause: Abnormal operation of the compressor, compressor circuit failure, etc.

Solution: Check the operation of the compressor to ensure it is working properly; check the compressor circuit and repair or replace faulty parts.

4. Fan failure

Cause: The indoor or outdoor unit fan is damaged, the fan motor fails, etc.

Solution: Check whether the fan is running normally, repair or replace the damaged fan; check the fan motor, repair or replace the faulty motor

5. Control system failure

Reason: control panel failure, sensor failure, etc.

Solution: Check whether the control panel settings are correct, repair or replace the faulty control panel; check whether the sensor is working properly, repair or replace the faulty sensor.