Friedrich MW09C1H, MW12C1H, MR09C1H, MR12C1H manual Can not start up

Page 45

Troubleshooting

Trip of breaker or blow of fuse

 

The breaker trips at once when it is set to

 

 

 

Measure insulation resistance to grou

 

"ON".

 

 

 

nd to see if there is any leakage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The circuit or the part of the air conditioner has

 

 

 

 

 

malfunction. They heat and break the insulation

 

The breaker trips in few

 

 

 

 

 

 

 

 

 

 

 

 

minutes

 

 

 

and lead to short circuit or creepage. Measure

 

 

 

 

 

when it is set to "ON"

 

 

 

the insulation resistance or eliminate the malfunc-

 

 

 

 

 

tion one by one. If the breaker itself has

 

 

 

 

 

 

 

 

 

 

malfunction, then replace the breaker.

 

 

 

 

 

 

 

 

 

can not start up

The air conditioner does not react after it is powered ( after the plug is inserted, the buzzer does

No power

Power plug is not well plugged in and poor connection

Fuse of controller burnt out

Check power supply circuit.

Check if the plug is properly plugged in and make the loose contact firm.

Change controller fuse

conditioner

not sound and the remote startup has no response)

The transformer connection is loose or has

 

Fasten the wiring; measure the output

bad contact or the transformer has

 

voltage of the transformer, if it is

 

malfunction

 

incorrect, change the transformer

 

 

Air

The remote contro- ller signals (after it is powered, the buzzer will sound, unless it has malfunction)

Controller is broken

Remote controller is short of power

Remote controller malfunction

Receiver loose or poor connection

Receiver is broken

Check remote controller

Change batteries

First, press the manual switch button AUTO,if there is no response,check based on the above methods. If it runs normally after pressing the button,check again whether the installation position and the connection wire of the reception head is correct. If it is correct,then repla- ce the receiver or the remote controller.

 

 

 

 

Check the voltage. If it is lower than 10% of the rated

 

Power voltage is too low

 

 

 

 

 

 

 

 

 

voltage, check the cause, improve the power supply

 

 

 

 

condition and add the stabilized voltage power supply.

 

 

 

 

 

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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