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Service Code Number
Mode
Comments
56
Fresh Food Fan
Diagnostic code 56 turns on the Fresh Food fan motor.
When activated the main board sends 12 VDC to the fan
motor on K107 pins 1-2 (brown to black). Pin 3 (PWM)
should read 5 VDC to pin 2 (black to blue) if the fan motor
is operating. For edge connector testing on the main
board, you may need to pull the connector partially off of
the edge of the board to access the circuit.
Service Code Number
Mode
Comments
57
Freezer Fan
Diagnostic code 57 turns on the Freezer fan motor. When
activated the main board sends 12 VDC to the fan motor
on K112 pins 9-10 (brown to black). Pin 11 (PWM) should
read 5 VDC to pin 2 if the fan motor is operating (black to
blue). As with the Fresh Food fan motor, you should hear
the fan running when activated in diagnostic mode.
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