Error code
Bosch F43
BOSCHF43
Error Code· Shown on the appliance's control panel.
What it means
Upper (or single) oven motorized latch will not lock; defective or jammed upper (or single) oven door or latch switches; defective latch motor or its wiring..
How to fix it
- Check P24 connector on the power board.
- Ensure door latch switches are operating properly.
- Check that neither latch switch nor common wires are pinched to the appliance chassis.
- Check P10 connector and check if latch motor wire is pinched to the appliance chassis.
- If F43 persists, replace power board.
Not affiliated with Bosch. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Bosch codes
- F32Lower oven temperature sensor failure; an open or short circuit in the lower oven sensor wiring
- F41Upper (or single) oven motorized latch will not lock; defective or jammed upper (or single) oven door or latch switches; defective latch motor or its wiring.
- F42Lower motorized latch will not lock; defective or jammed lower oven door or latch switches; defective latch motor or its wiring.
- F44Lower motorized latch will not lock; defective or jammed lower oven door or latch switches; defective latch motor or its wiring.
- F45Upper (or single) oven motorized latch will not lock; defective or jammed upper (or single) oven door or latch switches; defective latch motor or its wiring.