Mitsubishi Split-Type Air Conditioner PUZ-A36NHA6-BS

Remove the electrical parts box

Remove 3 right side panel fixing screws (5 × 12) in the rear of the unit and remove the right side panel

Remove the welded part of bypass valve

Note 1: Recover refrigerant without spreading it in the air

Note 2: The welded part can be removed easily by removing the right side panel

Connector TH3 (white) on the controller circuit board disconnected

Clamp for the lead wire in the rear of the electrical parts box loosened

Thermistor <Liquid> (TH3) pulled out from the sensor holder

Sign off on the thermistor replacement

Warning: This procedure should be performed by trained personnel only.

Upload a photo of the service panel before removal

Service panel removed successfully

Upload a photo of the top panel before removal

Connector TH7 (red) on the controller circuit board disconnected successfully

Clamp for the lead wire in the rear of the electrical parts box loosened successfully

Thermistor <Ambient> (TH7) pulled out from the sensor holder successfully

Note: In case of replacing thermistor <Ambient> (TH7), replace it together with thermistor <2-phase pipe> (TH6), since they are combined together.

(1) Remove the service panel. (See Figure 1)

(2) Remove the top panel. (See Figure 1)

(3) Remove the electrical parts box. (See Photo 3)

[Removing the 4-way valve coil]

(4) Remove 4-way valve coil fixing screw (M4 × 6).

(5) Remove the 4-way valve coil by sliding the coil toward you.

(6) Disconnect the connector 21S4 (green) on the controller board in the electrical parts box.

[Removing the linear expansion valve coil]

(4) Remove the linear expansion valve coil by sliding the coil upward.

Disconnect the connector TH32 (black) or TH33 (yellow) on the controller circuit board in the electrical parts box

Loosen the clamp for the lead wire under the electrical parts box

Pull out the thermistor <Comp. surface> (TH32) and thermistor <Suction> (TH33) from the holder of the compressor shell

Sign off on the thermistor replacement