Mitsubishi Electric Mr.SLIM PKA-A12GA Service Manual page 39

OPERATION PROCEDURE
4. REMOVING THE POWER BOARD
(1) Remove the front panel. (see the photo 1)
(2) Remove the electrical parts box(2 screws). (see the photo 2)
(3) Disconnect the whole connector in the control board.
(4) After lifting the controller case with pressing its convex
section, remove the controller case and the control board
simultaneously. (see the photo 3)
(5) Disconnect the connector in the power board.
(6) Remove the power board.
5. REMOVING THE VANE MOTOR
(1) Disconnect the connector CN6V on the indoor controller
board.
(2) Remove the 2 screws of the vane motor, disconnect the
lead wire and remove the vane motor from the shaft.
6. REMOVING THE THERMISTOR
(1) Removing the room temperature thermistor TH1.
1Disconnect the connector CN20<red> on the indoor
controller board.
2Remove the room temperature thermistor from the holder.
(2) Removing the pipe temperature thermistor TH2.
1Disconnect the connector CN21<white> on the controller
board.
2Remove the pipe temperature thermistor set to the pipe.
(3) Removing the indoor coil temperature thermistor TH5.
1Disconnect the connector CN29<black> on the indoor con-
troller board.
2Remove the gas pipe thermistor set to the pipe.
7. REMOVING THE NOZZLE ASSEMBLE
(1) Disconnect the connector CN6V on the controller board.
(2) Disconnect the lead wire of the vane motor.
(3) Remove the corner cover.
(4) Pull the drain hose out from the nozzle assembly.
(5) Unhook the hook of the lower nozzle assembly and
pull the nozzle assembly toward you, then remove the
nozzle assembly by sliding it down.
8. REMOVING THE ELECTRICAL PARTS BOX
(1) Remove the terminal block cover.
(2) Disconnect the connector <yellow> of the wireless remote
controller board.
(3) Remove the front panel. (see the photo 1)
(4) Disconnect the vane motor connector.
(5) Disconnect the fan motor connector from the fan motor.
(6) Disconnect the connector <yellow> of the heater. (only PKH).
(7) Remove the liquid(TH2) / gas(TH5) pipe thermistors. (see
the photo 6)
(8) Remove the electrical parts box (2screws).
PHOTOS & ILLUSTRATION
Photo 4
Photo 5
Nozzle
assemble
Vane motor
Photo 6
Pipe
temperature
thermistor
(TH2)
Room
temperature
thermistor
(TH1)
Photo 7
Nozzle assemble
Photo 8
Pipe
temperature
thermistor
39
Power board
Electrical
parts box
Set screws
Lead wire
Condenser
/evaporator
temperature
thermistor
(TH5)
Electrical
parts box
Drain hose
Hook
Corner cover
Vane motor
connector
Electrical
parts box
Fan motor connector