Diagnostic Information (Trouble Shooting) - Haier AU482FIBHA Service Manual

10 DIAGNOSTIC INFORMATION (TROUBLE SHOOTING)

10.1 Fault Codes
In order to make repair and maintenance convenient, we set "Automatic troubleshooting"
function in indoor unit and centralized controller. If any abnormal phenomenon occurs in
operation, you can determine the trouble part and condition from the display on the LED of outdoor PCB,
or the trouble code on the wired controller.
Remote controller Timer and Operation indicator malfunction code
When the unit running, Timer indicator flash stand for indoor unit malfunction
operation indicator flashing stand for outdoor unit malfunction：
Indoor unit malfunction
Timer indicator
Flashing times
Flashing once
Flashing twice
Flashing 3 times
Flashing 4 times
Flashing 5 times
Flashing 6 times
Flashing 8 times
Flashing 10 times
Flashing 11 times
Flashing 12 times
Flashing 13 times
Flashing 14 times
Wired controller and malfunction code
Indoor unit malfunction display code
Indoor unit malfunction
Float switch or water motor abnormal
Outdoor unit abnormal
Setting running mode is different with outdoor
running mode
Liquid temperature sensor is abnormal
Gas temperature sensor is abnormal
The communication between indoor 846 chip and
communication chip is abnormal
The communication with electronic expansion box
is abnormal
The communication between the wire remote
controller and indoor unit control board is abnormal
The communication between indoor and outdoor unit
is abnormal
Water temp. sensor is abnormal
Indoor unit malfunction
The liquid tube temperature sensor is abnormal
The gas tube temperature sensor is abnormal
The environment temperature sensor is abnormal
The communication with outdoor unit is abnormal
The communication with the electronic expansion
valve control board is abnormal
The communication
communication chip is abnormal
PMV strong electricity board is abnormal
Indoor unit PG fan motor is abnormal
Indoor unit water overflow or float switch is abnormal
Indoor unit EEPROM data is abnormal
Indoor unit is overload
The communication between indoor unit and wire
remote controller is abnormal
between indoor 846
Display code
E0
E1
E2
E3
E4
E5
E7
E8
E9
EB
and