Mitsubishi Split-Type Air Conditioner PUY-A30NHA6

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

Refrigerant recovered from the unit completely

Refrigerant released in the air

Cycle charged with specified amount of refrigerant after service

Filter drier installed for service

Cylinder for R410A is a syphon type

Charging performed with the cylinder of syphon stood vertically

(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.

Remove 2 front cover panel fixing screws (5 × 12) and remove the front cover panel

Remove 2 back cover panel fixing screws (5 × 12) and remove the back cover panel

Remove the electrical parts box

Remove 3 valve bed fixing screws (4 × 10), 4 ball valve and stop valve fixing screws (5 × 16), then remove the valve bed

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

Remove 3 separator fixing screws (4 × 10) and remove the separator

Remove the thermistor <Comp. surface> (TH32)

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

Upload a photo of the removed electrical parts box

Number of right side panel fixing screws removed

Amount of refrigerant recovered

Welded part of bypass valve removed

Sign off on the bypass valve replacement