Oven High Severity
F20 Miele Error Code

Heating Element Fault

The F20 error code on your Miele Oven indicates heating element problem. This is a High severity issue. A heating element in the oven has failed or is drawing abnormal current. Found on Miele H-series ovens with multiple heating elements (top, bottom, ring/convection). The oven cannot reach or maintain the set temperature. What Does F20 […]

~5%

DIY Fixable

From $200

Typical Repair Cost

1–3 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. A problemy element cannot regulate heat properly. Professional replacement is needed.

Can I reset the code?

No. No — a burned-out element must be physically replaced.

When to stop immediately?

Stop if you notice: F20 is persistent, Sparking from an element.

Symptoms You May Notice

"F20" on the display

Appears during or at the start of a heating cycle.

Oven not reaching temperature

The oven heats very slowly or not at all.

Uneven cooking

One heating mode (e.g., top heat) may fail while others work.

Possible Causes

1

Heating element burned out

The element wire has broken — visible as a gap or dark spot on the element.

Requires Professional
2

Loose terminal connection

A wire has come loose from the element terminal due to heat expansion over time.

Requires Professional
3

Relay failure on control board

The relay that switches power to the element has failed.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Visual inspection of elements

    Look at the visible heating elements inside the oven (top grill element, bottom element if visible). Look for breaks, dark spots, or bulging.

    A burned-out element often has a visible gap where the wire has broken.

  2. 2

    Test different heating modes

    Try top heat only, bottom heat only, and fan-forced. Note which modes trigger F20 — this identifies which element has failed.

    If only one mode fails, the specific element for that mode is the culprit.

When to Call a Professional

Contact a qualified Miele technician if:

  • Visible break in heating element
  • Element reads infinite resistance
  • Relay on control board failed

Need Professional Help?

Find qualified Miele technicians in your area for proper diagnostics and repair.

Oven Repair Service Schedule Appointment

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F55 F32 F23 F6 F11 F10 F5 F9 F7 F4 F3 F2