MRV Communications AE142FCAKA, AE212FCAKA, AE092FCAKA When Fault Occurs, Poor cooling or heating

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When Fault Occurs

Poor cooling or heating

Is the operation controller adjusted as required?

Are there any obstructs before the air inlet or outlet?

Is there any door or window left open?

Poor cooling

Is there any other heat source in the room?

Is there any direct sunlight into the room?

Are there too many people in the room?

If, after the above checks and the corresponding corrective actions, the system remains

abnormal operation, or the following facts appear, please turn off the air conditioner and

then contact the local authorized service center.

Frequent open of fuse or breaker.

There is water leakage during COOL or DRY operation.

The operation is abnormal or abnormal sound is heard.

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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? Poor cooling When Fault OccursPoor cooling or heating 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 cutting and expanding Pipe expansion dimensions as followsRefrigerant piping Open all valves Electric wiring Ring terminal connection methodField setting Outdoor unit malfunction display code MalfunctionIndoor unit malfunction display code Indoor unit malfunction Outdoor unit malfunction