Friedrich MW09C1H, MW12C1H, MR09C1H, MR12C1H manual Troubleshooting

Page 57

Troubleshooting

Mainly detect:

Whether the compressor wiring is connected correct?

Is time for compressor stopping enough?

Is compressor broken?

Power on the unit

Is stop time of the compressor

 

N

 

Restart it up after 3 minutes

 

 

longer than 3 minutes?

 

 

 

 

 

 

 

 

Y

Does startup fail?

Y

Are the wires for the compressor connected correctly? Is connection sequence right?

NConnect the wires as per the connection diagram

Y

Replace the control panel AP1

N

If the fault is eliminated?

N

Replace the compressor

Y

End

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Contents Split Type Room AIR Conditioner Wall Mounted Type Table of Contents Model and product code Summary and features Important Safety Information Refrigeration System Repair Hazards Property Damage Hazards Specifications 115 MR09C1H MR12C1H Appending date Expanded capacity data tables for both cooling and heating Operation Characteristic Curve 09KUnits Construction Views Refrigerant System Diagram Electrical Date Electrical wiringCooling Models TOP View Bottom View Bottom View Function and Control Remote Control OperationsAuto Timer on Displayed. If the light is tunrned off Disappears Replacement of Batteries Description of Each Control Operation Function and Control Function and Control Setting+ 2, medium speed Tring ≤ Tsetting 2, low speed P2 Maximum cooling and heating Frequency Control Detection of temperature sensor malfunction3-minutes Standby Compressor Protection FunctionDischarge Pipe Control Input Current ControlFreeze-up Protection Control Detail Conditions for Start Controlling Tap Control in indoor/outdoor unit silent operation Fan ControlImportant Notices Ground requirements Installation dimension diagram Boring Piping Hole Installing Indoor Unit Installing Outdoor Unit Electric wiringCheck after Installation and Operation Test Check after InstallationInstallation of Healthy Filter Installation and Maintenance of Healthy FilterOptionalTroubleshooting Can not start up Malfunction of four-way valve Is not on, then replace the protector Adjust support washer of compressor, Troubleshooting YELLOW-LED4 GREEN-LED2 RED-LED3 Analysis or processing of some of the malfunction display How to Check simply the main part Troubleshooting Comp Page AP1 Troubleshooting Is stop time of the compressor longer than 3 minutes? Minutes after the complete unit is powered off Start If the fault is eliminated? Troubleshooting Flow chart for outdoor communitcation circuit detecting Troubleshooting Guide Troubleshooting Guide Temp Resistance Way Valve Liquid Side 2-way, 3-way Valve AppearanceProcedure Close Close Open Close Balance Refrigerant of the 3-way Valve Evacuation ProcedureAfter Evacuation Gas ChargingRemoval Procedure Removal Procedure Removal Procedure Removal Procedure of Outdoor Unit Removal Procedure Removal Procedure MW09C1H / MW12C1H Exploded Diagram MW09C1H Parts List MW12C1H Parts List MR09C1H Exploded Diagram MR09C1H Parts List MR12C1H Exploded View MR12C1H Parts List Page Friedrich AIR Conditioning CO