43
GE Title or job number
11/26/2013
Door latch Machine control F90 thru F95
F codes associated with latch switch issues will be:
F90,91,92 for UPPER oven.
F93,94,95 for LOWER oven.
To check the door latch circuit- UPPER oven- measure for resistance from PIN 1 to 2 - Y to O on J900. Upper
machine control board.(left side) Should measure OPEN (∞) in all modes except SELF CLEAN.
To check the door latch circuit- LOWER oven- measure for resistance from PIN 1 to 2 – Y/W to O/W on J900.
Lower machine control board. Should measure OPEN (∞) in all modes except SELF CLEAN.
To test latch switches and door position switch with latch in self clean position (door locked):
With door closed and latch in self clean position, there should be continuity between PIN 1 to 2 - Y to O, AND
PIN 1 to 3 - Y to BR (tests door position switch) for UPPER oven or SINGLE.
With door closed and latch in self clean position, there should be continuity between PIN 1 to 2 – Y/W to O/W,
AND PIN 1 to 3 Y/W to BR/W (tests door position switch) for LOWER oven.
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