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Service Code Number
Mode
Comments
67
Freezer Evaporator
Defrost Heater
Diagnostic code 67 turns on the Freezer evaporator
defrost heater. When activated the main board sends
120 VAC to the defrost heater from K106 pins 1-2 (white
to black). The defrost heater resistance (85
Ω
) can also be
checked from the same connection. Use diagnostic test
#9 to turn off the defrost heater. Will activate test in a
warm cabinet.
Service Code Number
Mode
Comments
68
Ice Maker Fill Tube
Heater
Diagnostic code 68 turns on the icemaker
fi
ll tube heater.
When activated the main board sends 12 VDC to the
fi
ll
tube heater from K112 pins 1-2 (brown to blue). The
fi
ll
tube heater resistance (41
Ω
) can also be checked from
the same connection. Will activate test in a warm cabinet.
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