Mitsubishi Electric Mr.SLIM PKA-A12HA4 Service Manual page 32

OPERATION PROCEDURE
8. REMOVING THE LIQUID PIPE THERMISTOR AND
COND/EVA TEMP. THERMISTOR
(1) Remove the front panel. (Refer to step 2)
(2) Remove the electrical box cover.
(3) Remove the motor band.
(4) Cut the wiring fixed band.
(5) Remove the liquid pipe thermistor and cond/eva temp. ther-
mistor.
(6) Disconnect the connector (CN44) on the indoor
controller board.
9. REMOVING THE HEAT EXCHANGER
(1) Remove the front panel (Refer to step 2) and the corner
panel at right lower side.
(2) Remove the electrical box (Refer to step 4) and the nozzle
assembly (Refer to step 5).
(3) Remove the motor band.
(4) Remove the pipe thermistors (Refer to step 8).
(5) Disconnect the connector (CN60) on the indoor controller
board and the connector for ground wire. (See Photo 5)
(6) Remove the screws fixing the left side of the heat
exchanger. (See Photo 9)
(7) Remove the heat exchanger.
10. REMOVING THE ROOM TEMPERATURE THERMISTOR
(1) Remove the front panel (Refer to step 2).
(2) Remove the electrical box cover.
(3) Remove the room temperature thermistor.
(4) Disconnect the connector (CN20) on the indoor controller
board.
PHOTOS
Photo 12
Heat exchanger
Photo 13
Heat exchanger
Water cover
Nozzle assembly
Photo 14
Screw (side cover)
Screw (top cover)
Nozzle assembly
Switch holder
32
Condenser/evaporator temp.
thermistor (TH5)
Liquid pipe thermistor (TH2)
Electrical box cover (side)
Electrical box cover (top)
Screw (side cover)
Screw (top cover)
Switch board cover
Holder of
IR wireless
controller board
Electrical box
cover (top)
Electrical box
cover (side)
Room temp.
thermistor
(TH1)
Thermistor
holder
Screw
(side cover)
Holder of
IR wireless
controller board
Screw
(side
cover)