Controller - Mitsubishi Electric Mr.SLIM PCA-RP50KAQ Service Manual

OPERATING PROCEDURE
3. Removing the room temperature thermistor (TH1)
(1) Remove the air intake grille. (See Figure 1, 2)
(2) Remove the beam by removing screws. (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 beam by removing screws. (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 4 screws fixing fan guard of the fan motor. (2
screws : See Photo 5 / 2 screws : Upper the electrical
box)
(7) Remove 2 screws fixing fan guard of piping side and
remove the fan guard. (See Photo 6)
(8) Remove the lower casing while pressing the 4 catches of
the casing (right side of the fan motor).
(9) Loosen the 2 set screws (2 hexagon set screws) of con-
necting joint and slide the fan motor to the left. (See
Photo 5)
(10) Remove the motor piece (left and right, each 1 screw).
(See Photo 5)
(11) Remove the fan motor and right side fan together.
(12) Loosen the set screw (hexagon set screw) of fan and
remove the fan from the shaft. (See Photo 7, 8)
Photo 8
OCH491C
Photo 4
Room temperature
thermistor (TH1)
Photo 5
Photo 6
Fan guard
Photo 7
Hexagon set screw
42
PHOTOS & ILLUSTRATIONS
Casing
Electrical box
Set screws
Connecting
joint
Catch
Catch
Fan guard fixing screws
Fan motor
Motor piece
fixing screws
Fan guard fixing screws
Hole for driver