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Error Cause Corrective Action
F42
Lower motorized latch will not
lock.
Defective or jammed lower
oven door or latch switches.
Defective latch motor or its
wiring.
1. Check P24 connector on the Power Board.
2. Ensure door latch switches are operating properly.
3. Check that neither latch switch nor common wires are pinched to
the appliance chassis.
4. Check P10 connector and check if latch motor wire is pinched to
the appliance chassis.
5. If F42 persists, replace Power Board.
F43
Upper (or single) oven
motorized latch will not unlock.
Defective or jammed upper
oven door or latch switches.
Defective latch motor or its
wiring.
1. Check P4 connector on the Power Board.
2. Ensure door latch switches are operating properly.
3. Check that neither latch switch nor common wires are pinched to
the appliance chassis.
4. Check P10 connector and check if latch motor wire is pinched to
the appliance chassis.
5. If F43 persists, replace Power Board.
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