Bosch Oven Error F45

⚡ Quick Answer: The Bosch oven F45 error code indicates a malfunction in the upper oven door mechanism, specifically related to the door latch switches. This error ty... ✅ DIY Fixable

What Does Error F45 Mean?

The Bosch oven F45 error code indicates a malfunction in the upper oven door mechanism, specifically related to the door latch switches. This error typically arises when the door latch is jammed or not properly locking or unlocking, often leading to issues during self-cleaning cycles. If you hear unusual clicking sounds or experience failure to heat, it's essential to inspect the door and latch assembly for any obstructions or mechanical faults.

Common Symptoms:

  • Upper oven door latch mechanism not operating correctly
  • Door not properly locking or unlocking
  • Error appears when self‑cleaning or attempting to lock door

Possible Causes

  • Door latch switches sending conflicting or ambiguous position signals to the control board (medium)
  • Mechanical jam or fault in the upper oven door/latch mechanism (medium)

How to Fix Error F45

DIY Fix Basic Door and Latch Inspection

  1. Ensure the oven door is fully closed and not obstructed by debris.
  2. Visually inspect the latch area for any obvious foreign objects causing binding.
  3. Open and close the door a few times to see if the latch engages smoothly.

Technician Only Diagnose and Repair Door Latch Mechanism

  1. Disconnect oven from electrical power.
  2. Remove access panels to reach the upper oven door latch assembly.
  3. Test latch switches with a multimeter for proper continuity and consistent signals.
  4. Inspect latch motor/gear and linkage for binding or wear.
  5. Replace defective door latch switches or latch assembly as needed.

Parts needed: Upper oven door latch switches, Latch mechanism/assembly

🛑 When to Call a Pro:
  • If the error persists after basic inspection and the door does not lock or unlock normally.
  • If you are not comfortable accessing internal components or using electrical test tools.

Technical Specifications

wattage 3000W
component Heating Element
resistance 10-30 ohms
part_number 00420843
voltage_rating 240V AC

Common Questions

What does F45 error mean on Bosch oven?

The F45 error indicates a malfunction with the upper oven door latch mechanism, causing locking or unlocking issues.

Can I fix Bosch oven F45 error myself?

Yes, inspect the door and latch for obstructions and ensure the door closes properly.

How much does it cost to fix F45 error?

Repair costs typically range from $50 to $200 for parts, plus labor, depending on model and region.

When should I call a technician for F45?

Call a technician if the issue persists after inspection or if you're uncomfortable with internal repairs.

Data last verified: 2026-01-16

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