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FF Temperature Board Diagnosing
Main Board:
J4 pin 3 (blue) to J2 pin 8 (red/silver): 12
VDC
J4 pin 3 (blue) to J1 pin 7 (red/white): 5 VDC
J4 pin 3 (blue) to J1 pin 7 (red/white):*
Refrigerator set to Coldest setting: ~ 4.6 VDC
Refrigerator set to Colder setting: ~ 3.3 VDC
Refrigerator set to Cold setting: ~ 2.5 VDC
*If the main board does not receive any
voltage from the FF temperature board, the
compressor and fans will not operate.
FF Temperature Board:
J1 (blue) to J1 (red/silver): 12 VDC
J1 (blue) to J1 (red/white): 5 VDC
J1 (blue) to J1 (red/white):*
Refrigerator set to Coldest setting: ~ 4.6 VDC
Refrigerator set to Colder setting: ~ 3.3 VDC
Refrigerator set to Cold setting: ~ 2.5 VDC
*If the main board does not receive any
voltage from the FF temperature board, the
compressor and fans will not operate.
Back Light LEDs
The control housing assembly has two back light
LEDs to illuminate the control housing. Both
LEDs receive power from the FF temperature
board and can only be replaced as part of the
control housing assembly (see Control Housing
Removal under Control Housing Assembly).
Back Light LED Diagnosing
From temperature control board with door switch
not engaged.
J1 (pink/black) to J1 (red/silver): 12 VDC
J2 (red) to J2 (black): 12 VDC
J3 (red) to J3 (black): 12 VDC
From the main board with the door open.
J2 pin 6 (pink/black) to J2 pin 8 (red/silver):
12 VDC
Air Tower
The air tower is used to transfer air from the
freezer up to the control housing assembly
into the refrigerator. There is no damper at the
bottom of the air tower, instead there is a manual
damper built into the control housing assembly
(see Control Housing Assembly section for
more information).
Air Tower Removal
1. Remove the control housing assembly.
2. Remove two 1/4 in. hex head screws.
3. Pull the air tower away from the back wall by
the left or right side of the air tower.
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