Mitsubishi Electric PCA-A24KA Service Manual page 32

OPERATING PROCEDURE
3. Removing the room temperature thermistor (TH1)
(1) Remove the air intake grille. (See Figure 1,2)
(2) Remove the screw from the beam and remove the beam.
(See Photo 1)
(3) Remove 2 screws from the electrical cover, and remove
the electrical cover.
(4) Remove 2 screws from the electrical box and pull the
electrical box downward.
Temporarily secure the electrical box using 2 hooks in
the back of electrical box.
(5) Disconnect the connector CN20 (red) from the indoor
controller board.
(6) Remove the sensor holder from the electrical box and
remove the thermistor from the holder.
4. Removing the fan motor and right side fan
(1) Remove the air intake grille. (See Figure 1,2)
(2) Remove the screw from the beam and remove the beam.
(See Photo 1)
(3) Remove 2 screws from the electrical cover, and remove
the electrical cover.
(4) Remove 2 screws from the electrical box and pull the
electrical box downward.
(5) Temporarily secure the electrical box using 2 hooks in
the back of electrical box.
(6) Remove the lower casing while pressing the 4 catches of
the casing (right side of the fan motor). (See Photo 6)
(7) Loosen the 2 set screws (2 hexagon set screws) of con-
necting joint and slide the fan motor to the left. (See
Photo 5)
(8) Remove the screw for motor earth wire. (See Photo 5)
(9) Remove the motor piece (left and right, each 1 screw).
(See Photo 5)
(10) Remove the fan motor and right side fan together.
(11) Loosen the set screw (hexagon set screw) of fan and
remove the fan from the shaft. (See Photo 7,8)
Photo 8
Hexagon set screw
32
PHOTOS & ILLUSTRATIONS
Photo 4
Room temperature
thermistor (TH1)
Electrical box
Photo 5
Motor piece
fixing screws
Connecting
joint
Set screws
Casing
Photo 6
Casing
Catch
Photo 7
Casing
Motor earth wire
Fan motor
fixing screw
Casing
Electrical box
Catch
Catch
Hole for driver