Service manual

10.1 Fault Codes
10 DIAGNOSTIC INFORMATION (TROUBLE SHOOTING)
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
Indoor unit malfunction
Flashing once The liquid tube temperature sensor is abnormal
Flashing twice The gas tube temperature sensor is abnormal
Flashing 3 times The environment temperature sensor is abnormal
Flashing 4 times The communication with outdoor unit is abnormal
Flashing 5 times The communication with the electronic expansion
valve control board is abnormal
Flashing 6 times The communication between indoor 846 and
communication chip is abnormal
Flashing 8 times PMV strong electricity board is abnormal
Flashing 10 times Indoor unit PG fan motor is abnormal
Flashing 11 times Indoor unit water overflow or float switch is abnormal
Flashing 12 times Indoor unit EEPROM data is abnormal
Flashing 13 times Indoor unit is overload
Flashing 14 times The communication between indoor unit and wire
remote controller is abnormal
Indoor unit malfunction display code
Indoor unit malfunction Display code
Float switch or water motor abnormal E0
Outdoor unit abnormal E1
Setting running mode is different with outdoor
running mode
E2
Liquid temperature sensor is abnormal E3
Gas temperature sensor is abnormal E4
The communication between indoor 846 chip and
communication chip is abnormal
E5
The communication with electronic expansion box
is abnormal
E7
The communication between the wire remote
controller and indoor unit control board is abnormal
E8
The communication between indoor and outdoor unit
is abnormal
E9
Water temp. sensor is abnormal EB
Wired controller and malfunction code