GE Zoneline Generation III 2800 Series, Technical Service Manual, Page: 47 / 60

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13. Remove the ground wire from the indoor fan
motor.
14. Remove the 4 Phillips-head screws that hold the
indoor fan motor in place. Remove the indoor fan
motor.
12. Remove the 8-mm blower hex nut that holds
the blower wheel in place. Remove the blower
wheel.
Important : The 8-mm hex nut has left-hand
threads .
Blower Wheel
Hex Nut
Left Hand Threads
With wiring disconnected from the drive board
location CN109, check for resistance on the fan
harness wiring.
Black to red = approximately 0.9
Ω.
Note : Reversing the polarity of the test leads, black
to red will indicate an open circuit.
Black to white = approximately 0.8
Ω
Red to white = approximately 1.4
Ω
Blue to black
=
approximately
1.8 Ω
Blue to white
=
approximately
2 Ω
To remove the indoor DC fan motor:
Remove the room cabinet (see
Room Cabinet
).
Remove the chassis from the case.
Access the control box (see
Control Box
Components
).
Disconnect the indoor DC fan wiring from the
power board at location CN 109.
Remove the 2 Phillips-head screws that hold the
wire cover in place. Pull the fan wiring thru the
opening.
Remove the 9 Phillips-head screws that hold the
indoor coil cover in place. Remove the cover.
Remove the 3 Phillips-head screws that hold the
heater assembly in place.
WARNING: The evaporator fi ns are very sharp. Wear
Kevlar gloves when handling the evaporator.
7. Raise and pivot the heater assembly and the
attached wiring clockwise, clearing the plenum,
and set the heater assembly aside.
Note: The 8-mm hex nut has left-hand threads.
8. Remove the 8-mm nut that holds the blower
wheel to the motor shaft. Remove the blower
wheel.
9. Remove the 4 Phillips-head screws that hold the
indoor DC fan motor in place. Remove the fan
motor.
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6.
Indoor DC Fan Motor
(Models AZ38H09DAC/EAC,
AZ38H12DAC/EAC, and AZ38H15DAC/EAC)
A DC indoor fan motor is used on the 9000, 12000,
and 15000 BTU/hr corrosion protection models.
The use of a DC fan motor results in greater
effi ciency and lower operating costs in high demand
applications.
The indoor DC fan motor is a thermally protected
motor located on the outside of the indoor coil
housing, behind the indoor coil.
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