
Section 4 Component Teardown
4-16
Capacitor Removal
To remove the capacitor:
1. Disconnect power supply from unit.
2. Remove cabinet wrapper/sleeve then remove control
box cover.
3. Extract control box assembly mounting screws, then
pull away and rotate to access capacitor.
4. Discharge capacitor.
5. Disconnect wire leads from capacitor.
6. Extract screw from retainer securing the capacitor to
the control box assembly. Pull capacitor from unit.
(See Figure 4-36)
Fan Motor Capacitor Removal
To remove the capacitor:
1. Disconnect power supply from unit.
2. Remove cabinet wrapper/sleeve then remove control
box cover.
3. Extract control box assembly mounting screws, then
pull away and rotate to access fan motor capacitor.
4. Disconnect wire leads from capacitor.
5. Extract screw securing fan motor capacitor to control
box assembly. (See Figure 4-38)
Transformer Removal
To remove the transformer:
1. Disconnect power supply from unit.
2. Remove cabinet wrapper/sleeve then remove control
box cover.
3. Extract control box assembly mounting screws, then
pull away from unit.
4. Disconnect wire leads from control board leading to
the transformer. (See Figure 4-37)
5. From the underside of the control box assembly,
extract screws securing the transformer to the
control box assembly.
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of
the high-voltage rectifier) against the chassis with the
use of an insulated screwdriver.
CAUTION
CN6
CN1
CN3
CN4
CN7
P4
P3
P2
P7
P8
P10
P11
CN1
CN5
P9
L
M
H
Brown
Blue
Blue
Blue
White
White
White
Yellow
Yellow
Red
Red
Red
Red
Red
Black
Green
Black
Black
RY7
RY6
Comp
4
4
3
3
C
S
R
Compressor
M
Cap.
Trans.
Display
Control
Board
Ambient Sensor
Evap. Sensor
Daht Sensor
M
Fan
N
Power
Heater
Figure 4-37.
Figure 4-38.
Fan Motor
Capacitor Screw
Transformer
Mounting Screws
From Underside of
Control Box
Control Board
Control Board Removal
To remove the control board:
1. Disconnect power supply from unit.
2. Remove cabinet wrapper/sleeve then remove control
box cover.
3. Extract control box assembly mounting screws, then
pull away from unit.
4. Disconnect all wire leads from control board.
5. Release the plastic control board retainers then pull
control board from control box. (See Figure 4-38)
Control Board Retainers
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