Mitsubishi HVAC Unit NTXMSH42A152AA

Remove the service panel. (See Photo 1)

Remove the top panel. (See Photo 1)

Wire and Connector Disconnection

Disconnect the connecting wire from terminal block.

Remove all connectors from multi controller circuit board

Pull out the disconnected wire from the electrical parts box.

Compressor Lead Wire Disconnection

Remove the terminal cover using a flathead screwdriver. (See Figure 1)

Remove the service panel. (See Photo 1)

Remove the top panel. (See Photo 1)

Remove the cover panel (front). (Refer to procedure 8(5))

Remove the cover panel (rear). (Refer to procedure 8(6))

Remove the side panel (R). (Refer to procedure 8(7))

Disconnect the connector 63LS (blue) on the multi controller circuit board in the electrical parts box.

Remove the electrical parts box. (See Photo 5)

Remove 4-way valve coil fixing screw (M5 x 7)

Remove the 4-way valve coil by sliding the coil to the right

Disconnect the connector 21S4 (green) on the multi controller circuit board in the electrical parts box

Disconnect the connectors on the multi controller circuit board

Pull out the thermistor from the sensor holder

Cover and Electrical Parts Removal

Remove 2 front cover panel fixing screws (5 x 12) and remove the cover panel (front). (See Photo 4)

Remove the electrical parts box. (See Photo 5)

Valve Bed and Separator Removal

Remove the valve bed. (Refer to procedure 8 (4))

Remove 3 separator fixing screws (4 x 10) and remove the separator. (See Figure 2)

Refrigerant Recovery and Compressor Removal