Disassembly Procedure - Mitsubishi Electric PLA-RP1.6AA Service Manual

11

DISASSEMBLY PROCEDURE

PLA-RP1.6AA.UK PLA-RP2AA.UK
PLA-RP3AA.UK
PLA-RP3AA .UK PLA-RP4AA
1
OPERATING PROCEDURE
1. Removing the air intake grille
(1) Slide the knob of air intake grille toward the arrow 1 to
open the air intake grille.
(2) Remove drop prevention hook from the panel.
(3) Slide the shaft in the hinge to the direction of the arrow 2
and remove the air intake grille.
2. Removing the fan guard
(1) Open the air intake grille.
(2) Remove the 3 screws of fan guard.
3. Removing the room temperature thermistor
(1)Remove the fan guard.(See photo 1)
(2) Remove the screw in the room temperature thermistor
holder to remove the holder and the room temperature
thermistor.
(3) Remove the 1 screw from the bell mouth, and unscrew the
other 2 screws (fix to the oval hole which has a different
diameter) to remove the bell mouth.
(4) Remove the holder claw, and remove the room tempera-
ture thermistor and holder.
(5) Disconnect the connector (red) from the indoor control
board.
4. Removing the electrical box
(1) Remove the fan guard.(See photo 1)
(2) Remove the lead wire of the vane motor from the clamp,
and disconnect the white connector (10P).
(3) Remove the room temperature thermistor with the holder.
(4) Remove the bell mouth.(See photo 2)
(5) Disconnect the relay connector in the electrical box.
Red (3P) for fan motor power supply
White (2P) for pipe temperature detecting thermistor
Black (2P) for condenser/evaporator pipe temperature
detecting thermistor
Blue (2P) for drain pump
White (3P) for drain sensor
(6) Remove the 3 screws of the electrical box and loosen the
other 2 screws to remove the box.
<Electrical parts in the electrical box>
Indoor controller board
Power supply board
Terminal block
Capacitor
PLA-RP4AA.UK
.UK PLA-RP5AA
1
PLA-RP2.5AA.UK
PLA-RP5AA.UK
.UK PLA-RP6AA
1
PHOTOS & ILLUSTRATIONS
Figure 1
Air intake grille
Air intake grille knob
Photo 1
Fan guard
Photo 2
Bell mouth
Photo 3
Electrical box
Indoor
controller
board
Connector
74
PLA-RP6AA.UK
.UK
1
Grille
Power supply
board
Capacitor
Terminal
block
Be careful on removing
heavy parts.
Screws
Air intake
grille
Screws
Room
temperature
thermistor
Air intake grille
Turbo fan
Nut