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Appliance RepairBosch Fault Codes

Bosch Fault Codes

Bosch Range / Stove / Oven Fault Codes
Failure Code Fault Code Description Solution
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.
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