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

Models: MW12C1H MR09C1H MW09C1H MR12C1H

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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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Image 45
Friedrich MW09C1H, MW12C1H, MR09C1H, MR12C1H manual Can not start up