Haier AB092XCERA Service Manual page 121

6.1.4. Diagnostic code for AF*XCERA
TROUBLE SHOOTING
Faulty temperature sensor Tai
Faulty temperature sensor Tc1
Faulty temperature sensor Tc2
Faulty temperature sensor Tm
Faulty EEPROM on indoor
unit PCB
Abnormal communication
between indoor and outdoor
unit
Indoor unit address repeated
Faulty indoor unit fan motor
Faulty driver of indoor unit
fan motor
Malfunction on outdoor unit
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 inform the franchiser.
3. Failrue codes maked with
FAILURE CODE
(TIMER LED OF INDOOR
RECEIVER BOARD FLASHES
TIMES)
Sensor disconnected, or broken, or at wrong
ONCE
position, or short circuit
Sensor disconnected, or broken, or at wrong
TWICE
position, or short circuit
Sensor disconnected, or broken, or at wrong
3 TIMES
position, or short circuit
Sensor disconnected, or broken, or at wrong
4 TIMES
position, or short circuit
5 TIMES Faulty indoor unit PCB
Wrong connection, or the wires be
disconnected, or wrong address setting of
6 TIMES
indoor units, or faulty PCB, or faulty power
supply
9 TIMES Wrong setting of indoor unit address
Fan is blocked, or the terminal is disconnected
11 TIMES
from the PCB, or faulty indoor unit PCB
12 TIMES Faulty indoor unit PCB
20 TIMES Check the outdoor unit failure code
are resumable.
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POSSIBLE REASONS