Miele Dishwasher Error Code F31: Meaning and Fix
Reading the dishwasher display
A dishwasher reports its fault in the display window, or by blinking a cycle light a set number of times with a pause between groups. Count the blinks and pauses before opening the door. Miele displays an F followed by a number and often a text hint in your language.
Miele reports faults as F-numbers on dishwashers and washers and expects many of them to be handled by a service technician. Plenty of the entries here are first checks you can safely do before booking a visit. The codes apply to model numbers such as G 4228 SCU, G 7156 SCVi and W1 Classic WWF060; check the label on your unit to confirm yours.
What causes F31
- A failed relay, triac or processor on the main control board
- Corrosion on the module connector
- A loose ribbon cable or connector between the user interface and the main board
- Moisture, a power surge or corrosion damage on the electronics
How to fix it
- Disconnect power for at least five minutes to let the electronics reset, then restore power and see whether the code clears.
- Open the electronics enclosure and look for burn marks, swollen capacitors, water traces or loose connectors.
- Inspect the connector and spray with contact cleaner after unplugging.
- Reseat every connector and ribbon cable on the control and display boards.
- Check the supply voltage at the outlet to rule out a brown-out or bad ground.
- If the code returns straight away, replace the control module using the exact part number from the model/serial tag.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Dishwasher Control Board | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does error F31 mean on a Miele dishwasher?
The main electronics flagged an error in its own check routine. Exact behavior can vary by model and software version; confirm against your own manual.
Can I keep using my dishwasher while F31 is showing?
Possibly, if the machine still starts, but a failing board can misbehave at random, so plan a repair.
How do I clear F31, and can I fix it myself?
Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. Parts here involve electronics, heating or sealed components, so consider a qualified technician if the basic checks do not clear it.
Other Miele dishwasher codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including G 4228 SCU, G 7156 SCVi, G 5006 SC, G 4998 SCVi.