Malfunction – MRV Communications AE09~212FCAKA User Manual
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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 ommunication 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
Operation indicator
flashing times
Outdoor unit Trouble contents
Flashing once
Outdoor unit defrost temp. sensor is abnormal
Flashing twice
Outdoor unit environment temp. sensor is abnormal
Flashing 3 times
ction temperature sensor is abnormal
Flashing 4 times
Outdoor unit discharging temperature sensor is abnormal
Flashing 5 times
Outdoor unit evapor ating temperature sensor is abnormal
Flashing 6 times
Outdoor unit AC over-current protection
Flashing 7 times
Outdoor unit DC voltage is insufficient protection
Flashing 9 times
IPM protection
Flashing 10 times
Outdoor unit EEPROM is abnormal
Flashing 11 times
Compressor discharging temperature overheat protection
The communication between the 857&communication chip is abnormal
Flashing 13 times
Outdoor unit high pressure protection
Flashing 14 times
High pressure sensor PD is abnormal
Flashing 15 times
Low pressure sensor PS is abnormal
Flashing 12 times
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
1. Indoor unit malfunction
2.Outdoor unit malfunction
Malfunction