Components - GE AZ85E09DAC Technical Service Manual

Main Board
The main board is located behind the electronics
cover. The front panel must be removed to remove
the electronics cover and access the main board.
The main board is attached to a metal bracket with
6 compression pins.
To check power to the main board from the low
voltage transformer, check for 24 VAC at the CN6
connecting wire. The main board should read 24
VAC between R and C (see photo).
CN1
CN6
R
CN1 - Sensors
CN3 - Drive Board
CN4 - Drive Board
CN6 - Main Power Board

Components

CN4
CN6
CN3
C
– 30 –
To remove the main board:
1. Remove the front panel. (See
2. Unplug the power cord (if installed) at the
universal power connector.
Note: In the following step, the junction box is
attached to the front bulkhead with 3 Phillips-head
screws and a bottom tab that is inserted into a slot.
3. Remove the 3 Phillips-head screws, then lift the
junction box from the bulkhead and place it
aside.
4. Unplug the heater wire harness.
Heater Wire Harness
.)
Slide-Out Chassis
Junction Box
Bottom Screw
and Tab Location
(Continued next page)