Table of Contents
Advertisement
To remove the control board:
1. Remove the room cabinet (see
2. Remove the single Phillips-head screw that
holds the control panel and knobs in place.
Remove the control panel and knobs.
Control Panel
3. Disconnect CN1, CN3, and CN5 from the control
board.
CN1
4. Remove the 3 Phillips-head bracket screws that
hold the triangular metal bracket in place (see
photo). Remove the bracket and control board.
Bracket Screws
Hex Nuts
.
Room Cabinet)
Screw
CN3
CN5
Tabs
Control Board Screws
Bracket Screw
– 39 –
5. Remove the 2 Phillips-head control board screws
and two 11-mm hex nuts that hold the control
board in place (see photo).
6. Remove the control board from the bracket
by squeezing the two plastic locking tabs (see
photo) and gently pressing the control board
down.
Control Box Components
Note: The following information is for units with AC
fan motors. Units with DC fan motors do not have
capacitors.
The control box houses the indoor fan capacitor,
outdoor fan capacitor, compressor capacitor,
transformer, main power connector, and power
supply board.
Control Box Component View
Indoor Fan Capacitor
Transformer
Run Capacitor
Power Connector
The control box is located on the right corner of
the unit. The room cabinet and the control board
bracket must be removed to access the control box.
Outdoor Fan Capacitor
Power Supply Board
(Continued next page)
Hide quick links:
Advertisement
Table of Contents
