Bosch Oven Error F20

⚡ Quick Answer: The Bosch oven error code F20 indicates a malfunction in the temperature sensor or user interface, leading to unresponsive controls or erratic tempera... ✅ DIY Fixable

What Does Error F20 Mean?

The Bosch oven error code F20 indicates a malfunction in the temperature sensor or user interface, leading to unresponsive controls or erratic temperature readings. This could be due to a dirty or defective touch panel, a faulty control board, or wiring issues between components. Cleaning the control panel and resetting the power may temporarily resolve the issue, but persistent problems likely require professional diagnosis and repair.

Common Symptoms:

  • Error code F20 displayed on oven control panel
  • Oven functions may be unresponsive or inputs ignored
  • Control panel buttons may not respond

Possible Causes

  • Dirty or defective touch panel (medium)
  • Defective user interface/control board (medium)
  • Wiring issues between control panel and main board (medium)

How to Fix Error F20

DIY Fix Basic user checks for F20 error

  1. Turn off the oven and disconnect power at the mains or circuit breaker for safety.
  2. Visually inspect the oven touch/control panel for dirt, jammed buttons, or visible damage.
  3. Clean the control panel gently with a dry, soft cloth to remove dirt or residue.
  4. Restore power and observe if the F20 code clears or if the panel responds normally.

Technician Only Technician diagnosis and repair for F20

  1. Disconnect oven power and access the control panel assembly.
  2. Inspect and test the touch panel/keyboard for continuity and proper function.
  3. Check the wiring harness between the touch panel and main control board for loose or damaged connections.
  4. If panel or wiring tests faulty, replace the defective component (touch panel or wiring).
  5. If wiring and panel are functional, test or replace the user interface/control board as needed.

Parts needed: touch/control panel assembly, wiring harness between panel and control board, user interface/control board

🛑 When to Call a Pro:
  • If the error persists after basic user cleaning and power reset
  • If the control panel appears damaged or unresponsive to inputs
  • If visible wiring damage is found or component replacement is needed

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-2000 ohms
part_number 00490056
voltage_rating 120V AC

Common Questions

What does F20 error mean on bosch oven?

The F20 error indicates a malfunction in the temperature sensor or user interface, causing control issues.

Can I fix bosch oven F20 error myself?

Yes, you can try cleaning the control panel and resetting the power, but persistent issues may require professional help.

How much does it cost to fix F20 error?

Repair costs for the F20 error range from $100 to $450, depending on parts and labor.

When should I call a technician for F20?

Call a technician if the error persists after cleaning, if the control panel is unresponsive, or if wiring damage is visible.

Sources & References

Data last verified: 2026-01-16

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