MRV Communications AE072FCAKA, AE212FCAKA System couldnt start Is power on/off switched on?

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Trouble Shooting

During DRY operation, there is no air

 

sent out or fan speed cant be changed.

 

 

 

In HEAT mode, the outdoor unit

This occurs during removal of the frost

generates water or steam.

(in defrosting operation) on the radiator

 

of outdoor unit.

 

Defrost operation

 

 

In HEAT mode, the indoor fan still

After the unit stops, the indoor fan will

keeps running even the unit operation

continue to run for a while to eliminate

stops.

residual heat.

Before asking for after-service to an authorized service center, please check your air

conditioner for the following items

The system couldnt start

Is power on/off switched on?

ON

OFF

The power on/off switch is not at position of "ON".

Is the power supply line

normal?

Power failure?

Is current leakage breaker triggered?

Please do immediately cut off power supply and contact the authorized service center.

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Contents Ceilingconcealedtypeairconditionerindoorunit ContentsPage 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 Operating Instructions Timer OperationTimer ON-OFF Sleep Function Health Function Following cases are not troubles Trouble ShootingSystem couldnt start Is power on/off switched on? Poor cooling or heating When Fault OccursPoor cooling Information about application Installation Precautions Electrical requirements Installing toolsFigure showing installation dimensions unitmm Installation ProcedureInstallation of indoor unit Transitive air duct New concrete slab Remove upper cover of wire controller Installation of remote controllerInstallation of receive display Requirements Drain pipeRefrigerant piping Pipe expansion dimensions as followsPipe cutting and expanding Open all valves Ring terminal connection method Electric wiringField setting Indoor unit malfunction display code MalfunctionOutdoor unit malfunction display code Outdoor unit malfunction Indoor unit malfunction