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Miele oven error codes

6 codes that Miele publishes for its ovens, each with what it means, the likely cause, what you can safely check and when to call a technician. Tap your code:

Switch off and unplug before checking. Anything electrical, anything to do with gas, and any water leak at the mains: call a technician. Codes that need one are marked Technician.

Read this first

Miele’s current ovens mostly write their messages out in words; numbered codes appear as “Fault F” and a number. Everything below is from Miele’s en-GB operating and installation instructions for its H 24xx, H 27xx and H 28xx ovens (M.-Nr. 12 433 440). The two numbered faults it explains, F32 and F33, are about the door lock of a pyrolytic oven; any other F number is for Miele’s engineers. Other Miele models can show other messages: your model’s manual is the authority.

Fault F32 Door lock did not lock for pyrolytic cleaning

What it means
The door lock for pyrolytic cleaning has not locked.
Likely cause
The lock did not engage when the cleaning programme started.
What you can safely check

Switch off and unplug before checking.

  • Switch the oven off and on again.
  • Start the pyrolytic cleaning programme again.
When to call a technician
If it appears again, call a technician (Miele Customer Service).

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

Fault F33 Door lock did not open after pyrolytic cleaning

What it means
The door lock for pyrolytic cleaning has not opened.
Likely cause
The lock did not release at the end of the cleaning programme.
What you can safely check

Switch off and unplug before checking.

  • Switch the oven off and on again.
When to call a technician
If the door lock still does not release, call a technician (Miele Customer Service).

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

Fault F… Any other fault code

What it means
“Fault” with a code not listed in the manual: a fault has occurred that you cannot resolve.
Likely cause
Not stated by Miele: the number is for its engineers.
What you can safely check

Nothing for the owner to check: this one is for a technician.

When to call a technician
Technician Call a technician (Miele Customer Service) and give them the code.

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

Max. op. hours reached Safety switch-off after long use

What it means
The oven has been operating for an unusually long time, which triggered the safety switch-off function.
Likely cause
A very long cooking time without any change.
What you can safely check

Switch off and unplug before checking.

  • Confirm with OK: the oven is ready to use again.
When to call a technician
No technician needed: this is a safety feature.

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

Power cut Brief power cut stopped cooking

What it means
There has been a brief power cut, and it stopped the cooking process.
Likely cause
A power interruption.
What you can safely check

Switch off and unplug before checking.

  • Turn the operating mode selector to 0.
  • Restart the cooking process.
When to call a technician
No technician needed.

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

12:00 Clock reset after a long power cut

What it means
The power supply was interrupted for longer than 5 minutes.
Likely cause
A power cut or the oven being switched off at the mains.
What you can safely check

Switch off and unplug before checking.

  • Reset the time of day, and any cooking times you had set.
When to call a technician
No technician needed.

Source: Miele, Miele — Operating and installation instructions, oven (en-GB, M.-Nr. 12 433 440): Troubleshooting (PDF) Checked 2026-09-28.

A code that is not listed here

Miele’s manual says that “Fault” with a code it does not list means a fault you cannot resolve yourself: call the Miele Customer Service Department. Before you do, check that the oven is getting power: the plug (if there is one) is in and switched on, and the fuse has not tripped. The manual says installation, maintenance and repair need the oven completely disconnected: switch off at the mains fuse (or pull the plug, if there is one).

We list only codes the source below states. If your code is not here, it may belong to a model the source does not cover: your model’s manual is the authority.

Related pages

Source

Every code on this page comes from this page, published by Miele and read on the date shown. Meanings are written in our own words; nothing is taken from other makes, other models or third-party code sites.