Mitsubishi Outdoor Unit Split-Type Air Conditioner MUZ-AP42VG

Warning: Disconnect the connector between the compressor and the power module (IC700) before proceeding

Ohmmeter zeroed before measurement

Measure the resistance between the lead wires at point BLK-WHT

Measure the resistance between the lead wires at point BLK-RED

Measure the resistance between the lead wires at point WHT-RED

Sign off on the compressor winding check

Warning: Ensure the device is powered off before starting the procedure.

Lead wire to the reactor disconnected

Disconnect the following connectors

Discharge temperature thermistor pulled out from its holder

Upload a photo of the removed discharge temperature thermistor

Defrost thermistor pulled out from its holder

Upload a photo of the removed defrost thermistor

Outdoor heat exchanger temperature thermistor pulled out from its holder

(1) Remove the cabinet and panels. (Refer to section 1.)

(2) Disconnect the following connectors:

(3) Remove the propeller fan nut.

(5) Remove the screws fixing the fan motor.

Section 1: Cabinet and Panels Removal

Section 2: Disconnecting Connectors

Disconnect the following connectors

Sign off on the R.V. coil removal

(1) Remove the cabinet and panels. (Refer to section 1.)

(2) Remove the inverter assembly. (Refer to section 2.)

(3) Recover gas from the refrigerant circuit.

NOTE: Recover gas from the pipes until the pressure gauge shows 0 kg/cm2 (0 MPa).

(4) Detach the brazed part of the suction and the discharge pipe connected with compressor.

(5) Remove the nuts of compressor legs.

(7) Detach the brazed part of pipes connected with 4-way valve.;