Mitsubishi Alarm Code #412 cause 5

Alarm Code #412

Model CPE52, 53, 14, 15, 15V, 16

Failure Disconnection of Compressor Motor ( MC or MCL )

Countermeasure

<< Cause -(5) >>

Defective Main compressor motor ( CM or CML )

< Check > ( Refer to Page F-29 )

Check the compressor running current with a clamp meter, the personal computer, the LED or the LCD. Or check the resistance of the motor coil, after removing the compressor terminal box cover.

(Note) Before checking the motor coil resistance, turn OFF the unit switch and an external power switch, and disconnect the power supply plug from an external power source.

< Action >

In case no change in current ( no continuity ) is detected : Replace the compressor.