
Section 4 Component Teardown
4-31
To remove power cord:
6. Extract the two screws securing the power cord to
the lower right front of the unit.
7. Cut all retaining straps holding the power cord to the
evaporator.
8. Disconnect white and black wires from control board.
9. Extract ground screw securing green wire to bottom
of control box.
10. Extract the two screws securing the power cord to
the bottom of the control box. Pull power cord from
unit. (See Figure 4-79)
To remove fan motor capacitor:
11. Disconnect all wire leads from fan motor capacitor.
Label as needed for proper reconnection.
12. Extract screw securing fan motor capacitor to bottom
of control box. (See Figure 4-80)
To remove transformer:
13. Disconnect all wire leads at the control board leading
to the transformer. Label as needed for proper
reconnection.
14. Extract the two screws securing transformer to
bottom of control box. (See Figure 4-80)
To remove the control board:
15. Disconnect all wire leads from control board. Label
as needed for proper reconnection.
16. Compress the plastic retainers securing the control
board to the bottom of the control box and remove
from unit.
To remove the thermistors:
17. Disconnect wire leads from control board.
Thermistor connections at CN2 and CN3 may be
glued to the control board. Carefully remove glue
before attempting to remove the connectors.
(See Figure 4-80)
18. Cut retaining straps securing thermistors to
evaporator.
19. Remove thermistors from the front of the evaporator
and from the tube attached to the evaporator.
Pull wire leds out of control box.
Control
Board
PP44
CCNN33
PP22
PP33
CCNN44
CC NN 11
Screws
Capacitor
Fan Motor
Capacitor
Transformer
Power Cord
Screws
Screw
Ground Screw
Figure 4-80.
Figure 4-79.
Screws
Thermistor
Control Box Removal
To remove the control box from the unit:
1. Disconnect the power supply from unit.
2. Remove front panel and cabinet wrapper/sleeve.
3. Remove control box cover. Discharge capacitor.
4. Disconnect wire leads from condenser fan motor and
compressor. Remove wire leads from control box.
5. Extract screws securing power cord from front of
unit.
6. Control box may now be removed with the power
cord attached.
Thermistor
connections at
CN2 and CN3
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