Carrier 38MARB - Page 72

38MARB: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
72
PCB Board 18K (208/230V)
Procedure Illustration
1) Remove the screws and loosen the
hooks, then open the electronic
control box cover (5 screws and 2
hooks).
2) Disconnect the fan motor connector
motor from the electronic control
board.
3) Remove the compressor connector.
4) Pull out the two blue wires connected
with the four way valve.
5) Pull out connectors of the condenser
coil temp. sensor (T3), outdoor ambient
temp. sensor (T4) and discharge temp
sensor (TP).
6) Disconnect the electronic expansion
valve wire.
7) Remove the connector for the DR
and reactor.
8) Then remove the electronic control
board.