MRV Communications AE142FCAKA, AE212FCAKA Indoor unit malfunction, Outdoor unit malfunction

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Malfunction

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

Timer indicator

Indoor unit malfunction

Flashing times

 

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

 

 

2.Outdoor unit malfunction

Operation indicator

Outdoor unit Trouble contents

flashing times

 

 

 

 

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

 

 

Flashing 12 times

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

 

 

 

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Contents Contents CeilingconcealedtypeairconditionerindoorunitPage DB C AE072FCAKA AE242FCAKA Fig1 Calibration of clock Remote controller Operation of remote controller 20 1.ON/OFF button Clock set Important Points of Safety Smell etc. occurs, stop running Important Points of Safety Recommendations Timer Operation Operating InstructionsTimer ON-OFF Sleep Function Health Function Trouble Shooting Following cases are not troublesSystem couldnt start Is power on/off switched on? When Fault Occurs Poor cooling or heatingPoor cooling Information about application Installation Precautions Installing tools Electrical requirementsInstallation Procedure Figure showing installation dimensions unitmmInstallation of indoor unit Transitive air duct New concrete slab Installation of remote controller Remove upper cover of wire controllerInstallation of receive display Drain pipe RequirementsPipe expansion dimensions as follows Refrigerant pipingPipe cutting and expanding Open all valves Electric wiring Ring terminal connection methodField setting Malfunction Indoor unit malfunction display codeOutdoor unit malfunction display code Indoor unit malfunction Outdoor unit malfunction