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Miele Dishwasher F18 Error Code
Water intake valve defective on Miele dishwashers.
MieleAll Miele dishwasher codes
The valve that lets water into the machine has failed. It's a technical fault with no user fix.
Compatible models
Miele lists it in its general dishwasher fault index, without model numbers.
Also shown as
No other codes are listed for this fault.
Difficulty
Try the basic checks, but the usual fix is a technician's job.
Not sure you are reading the code right? See how to read Miele dishwasher codes.
How to fix Miele F18
Close the supply valve
Turn off the water to the dishwasher until it's repaired, in case the valve sticks open.
When to call a technician
Book a Miele technician to replace the intake valve.
Parts linked to F18
These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.
- water inlet valve
Order parts by your full model number so they fit.
Frequently asked questions
Which Miele models show the F18 code?
Miele lists it in its general dishwasher fault index, without model numbers.
Can I fix Miele F18 myself?
Only the basic checks. You can safely try the steps above, but F18 usually points to a part or fault that needs a technician.
Other Miele dishwasher codes
- F11Water left in the wash cabinet (drain fault)
- Drain indicator flashingDrain light flashing, program stopped
- F12 / F13 / F15Water inlet blocked or restricted
- Water inlet fault / Water intake light flashingNot enough water coming in
- F14Circulation pump stuck or water level fault
- F78Circulation pump blocked
- F70Waterproof system triggered (leak)
- F1 / F2Water temperature sensor fault
- F19Flow meter fault
- F24Heating relay fault
- F25Target temperature not reached
- F26Boil-dry protection tripped
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.