Bosch Oven Error F42

⚡ Quick Answer: The Bosch oven error F42 indicates a problem with the door latch or switch mechanism, which can prevent the oven from starting or cause it to stop une... ✅ DIY Fixable

What Does Error F42 Mean?

The Bosch oven error F42 indicates a problem with the door latch or switch mechanism, which can prevent the oven from starting or cause it to stop unexpectedly. Common symptoms include the F42 code on the control panel and issues with the door not latching or being recognized as closed. This malfunction may stem from faulty or jammed latch switches or a malfunctioning door lock motor.

Common Symptoms:

  • Error F42 displayed on the oven control panel
  • Oven may not start or may stop operation when this code is shown
  • Door may not latch, lock, or be recognized as closed by the oven

Possible Causes

  • Faulty or jammed lower oven door or latch switches (medium)
  • Malfunction of the door lock motor or misread lock status (medium)

How to Fix Error F42

DIY Fix Check oven door and latch

  1. Ensure the oven door is fully closed and aligned properly.
  2. Open and close the door several times to free any minor binding or obstruction.
  3. Visually inspect latch area for debris or blockage preventing proper engagement.

Technician Only Inspect/repair door latch assembly and switches

  1. Disconnect power to the oven.
  2. Access the door latch and switch assembly according to the oven’s service procedure.
  3. Check continuity of latch switches with a multimeter and inspect wiring harnesses.
  4. Replace malfunctioning door/latch switches or latch motor as needed.
  5. Test door lock motor operation and control signals from the control board.

Parts needed: Door latch switches, Door lock motor assembly, Wiring harness

🛑 When to Call a Pro:
  • If the door remains unresponsive or physically jammed
  • If diagnostic testing of switches and latch motor shows faults
  • If uncertainty exists about safely accessing internal components

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-2000 ohms
part_number 00420496
voltage_rating 120V AC

Common Questions

What does F42 error mean on Bosch oven?

F42 indicates a door latch or switch issue, preventing the oven from operating.

Can I fix Bosch oven F42 error myself?

Yes, check the oven door alignment and latch for any blockages.

How much does it cost to fix F42 error?

Repair costs range from $100 to $300, including parts and labor.

When should I call a technician for F42?

Contact a technician if the door is jammed or if diagnostic tests show faults.

Data last verified: 2026-01-16

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