Bosch Fault Codes

F32

Lower oven temperature sensor failure; an open or short circuit in the lower oven sensor wiring

1. Check all connections, especially P24 on the power board.
2. Unplug the senor connector and check sensor resistance (approximately 1080 ohms at room temperature with connector remove). Remember to reconnect it.
3. Check that neither sensor wire is open or pinched to the appliance chassis.
4. Check that the solder joint in header P24 on the power board are not broken.
5. If sensor is OK, replace power board.

F41

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.

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 that the solder joints in header P24 on the power board are not broken.
5. Check P10 connector and check if latch motor wire is pinched to the appliance chassis.

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 lock; defective or jammed upper (or single) 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 F43 persists, replace power board.

F44

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.

F45

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.

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. If F45 persists, replace power board.