Pcb Board 3 - Carrier 38MARBQ12AA1 Service Manual

Procedure
6) Disconnect the wires connected to
the compressor (red wire connects
with the PCB board, others connect
with the terminals) (for some models).
7) Disconnect the fan motor connectors
(blue wire, red wire, brown wire and
black wire. The blue wire and brown
wire are on the capacitor.
The black wire connects with a
terminal and the red wire is on the
board (for some models).
8) Disconnect the wires connected to
the 4-way valve (for some models).
9) Disconnect the wires connected
to the transformer (for some models).
10) Disconnect the other wires connected
to terminals (for some models).
11) Remove the PCB board.

PCB Board 3

Procedure
1) Disconnect the connectors for the fan
motor.
2) Disconnect the wires connected
to the compressor.
3) Disconnect the wires connected to
the pipe temperature sensor.
4) Disconnect the ground wire.
5) Remove the PCB board.
92
Illustration
Compressor
Transformer
Illustration
Fan motor
Specifications subject to change without notice.
Fan Motor
4-Way Valve
Ground wire
Pipe temperature sensor
Compressor
SG-38MARB-01