Miele F38 fault codewhat it means and how to fix it
An electronic module fault. One of only two Miele oven codes with no owner remedy at all — their answer is to book a repair, and nothing else.
Take care
Get a qualified appliance engineer to look at your Miele F38
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What F38 means
Miele state the cause as an electronic module fault and then close the question: this is a technical fault that you cannot remedy yourself, please book a repair appointment online. There is no reset to try, no check to make and no escalation path, which is unusual in a code set where seven of nine come with something free to attempt. Worth understanding what the sentence signifies rather than treating it as a brush-off.
Miele use that exact wording on twenty-four of their twenty-eight tumble dryer codes and on just two of their nine oven codes, so on an oven it is a deliberate signal rather than a default. Where they have anything to offer, they offer it. The practical consequence is that a reset will not help and repeating it wastes your evening.
What we would suggest before calling is establishing what still works — whether the display responds, whether the grill runs, whether the fault is present from cold or appears once the oven is hot — because a module fault that only shows up under some conditions is more useful to describe than one reported as the oven has broken.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| A fault in one of the oven control modules | Miele’s entire published cause. They do not identify which module or what it governs, which is consistent with a code aimed at an engineer. | Common |
| A communication failure between control boards | Our reading rather than Miele’s statement. Ovens of this type run more than one board, and a link failure between them presents as a module fault. | Occasional |
Can you fix it yourself?
Stop — this needs an engineer
What it costs to fix
Typical repair cost
£150–£400
Time on site
10 minutes
Control modules are among the more expensive oven parts and Miele parts sit at the higher end. On an older appliance, get the repair quoted before authorising it.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Miele fault codes
- F55Usually simple to fixThe safety switch-off has operated after an unusually long run. Miele say the oven is ready for use again immediately — off, on, and carry on.Related: controls and clock
- F44Get it checkedA technical fault, and Miele give the only reset duration they publish for an oven: 20 seconds off at the circuit breaker, not a plug.Related: controls and clock
- F33Get it checkedThe pyrolytic door lock will not open. One of only two codes Miele’s own manual acknowledges, and the one where cutting the power is the wrong instinct.Related: same brand
- F32Get it checkedThe pyrolytic door lock will not close, so the clean cannot start. Miele have you check the seal for a foreign object, which is often the whole answer.Related: same brand
- F134Stop — call an engineerThe sensor is reading the cavity as too hot. Miele give no owner remedy for this one, and they conspicuously withhold advice they publish for a related code.Related: same brand
- F23Get it checkedThe pyrolytic clean never reached temperature, and Miele name the reason: too much loose soiling in the cavity. Clear the worst of it and run it again.Related: same brand
Own a Miele oven? Save it and its codes come first next time.
Related guides
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer support portal
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.