Mitsubishi Outdoor Unit MXZ-8C48NA2-U1

Removing the fan motor (MF1, MF2)

Remove the service panel. (See Photo 1)

Remove the top panel. (See Photo 1)

Remove 4 fan grille fixing screws (5 × 12) to detach the fan grille. (See Photo 1)

Remove a nut (for right handed screw of M6) to detach the propeller. (See Photo 2)

Disconnect the connectors, CNF1 and CNF2 on multi controller circuit board in electrical parts box.

Remove 4 fan motor fixing screws (5 × 20) to detach the fan motor. (See Photo 3)

Note: Tighten the propeller fan with a torque of 5.7 ± 0.3 N·m [4.2 ± 0.2 ft = lbs]

Sensor Disconnection and Box Removal

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

Remove the electrical parts box

Remove 3 service panel fixing screws (5 × 12)

Slide the hook on the right downward to remove the service panel

Remove 2 front screws (5 × 12) of the top panel

Remove 3 rear screws (5 × 12) of the top panel

Remove the service panel. (See Photo 1)

Remove the top panel. (See Photo 1)

Disconnect the connector TH7/6 (red) on the multi controller circuit board in the electrical parts box.

Loosen the wire clamps on top of the electrical parts box. (See Photo 6)

Pull out the thermistor <Ambient> (TH7) from the sensor holder.

Disconnect TH3 (white) connector on the multi controller circuit board

Disconnect TH4 (white) connector on the multi controller circuit board

Disconnect TH2 (black) connector on the multi controller circuit board

Pull out the thermistor <Outdoor liquid pipe> (TH3) from the sensor holder

Pull out the thermistor <Compressor> (TH4) from the sensor holder