Haier HCFU-42HF03 Operation & Installation Manual page 28

Trouble Shooting
Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal
Outdoor temp. sensor abnormal
Outdoor coil temp. sensor abnormal
Over-current malfunction
High / Low pressure abnormal or Comp. discharging protection malfunction
Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal
Temperature protection malfunction
Flash times of indoor
receiver board
Power LED flashes 1 time
Power LED flashes 2 times
Power LED flashes 3 times
Power LED flashes 4 times
Power LED flashes 5 times
Power LED flashes 16 times
Power LED flashes 8 times
Power LED flashes 9 times
Power LED flashes 13 times