Carrier 38MARBQ12AA1 Service Manual page 94

PCB Board 5
Procedure
1) Loosen the hooks (4) then open the
electronic control box cover.
2) Disconnect the fan motor connector
from the eletronic control board.
3) Remove the compressor connector.
4) Pull out the two blue wires
connected to the 4-way valve.
5) Pull out the condenser connectors
coil temp. sensor(T3),outdoor
ambient temp. sensor(T4) and
discharge temp. sensor(TP).
6) Disconnect the electronic expansion
valve wire.
7) Remove the electronic control board.
94
Illustration
Reactor
Compressor
Specifications subject to change without notice.
4-Way Valve
DR
T3, T4, TP
Electronic Expansion Valve
SG-38MARB-01