sign | Probable Cause | Elimination Method |
No air flow | Fan motor not working | Check the motor power supply circuit |
Fan motor running | Check the following items: - clogged air supply channels; – clogged fan outlet; – the radiator of a heater or a hose is hammered; – the air damper is faulty; - Faulty control cable. | |
Insufficient hot air flow | Fan speed does not change | Check the motor power supply circuit |
Fan is working properly | Check the following items: - clogged air supply channels; – clogged fan outlet; – Incorrect position of the air damper. | |
The compressor does not turn on even though the condenser fan is running | Check the motor power supply circuit | |
Compressor and condenser fan do not turn on | Check motor power circuits | |
Only the condenser fan does not turn on | Check the motor power supply circuit |