Malfunction – MRV Communications AE09~212FCAKA User Manual

Page 36

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35

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

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