31
Failure code
Note:
1. Please contact the installers or distributors when trouble happens to repair it.
2. Turn the power off and power on again, if the failure code recurs, please change the indoor unit PCB.
3. Failrue codes maked with are resumable.
TROUBLE SHOOTING FAILURE CODE
(DISPLAYED ON LCD) POSSIBLE REASONS
Faulty temperature sensor Tai 1Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor Tc1 2Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor Tc2 3Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor Tm 4Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty EEPROM on indoor
unit PCB 5 Faulty indoor unit PCB
Abnormal communication
between indoor and outdoor unit 6Wrong connection, or the wires be disconnected,
or wrong address setting of indoor units, or faulty
PCB, or faulty power supply
Indoor unit address repeated 9 Wrong setting of indoor unit address
Central control address repeated 10 Wrong setting of centralized control indoor unit
address
Faulty indoor unit fan motor 11 Fan is blocked, or the terminal is disconnected
from the PCB, or faulty indoor unit PCB
Faulty driver of indoor unit
fan motor 12 Faulty indoor unit PCB
Malfunction on outdoor unit 20 Check the outdoor unit