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Miele Dishwasher F18 Error Code

Water intake valve defective on Miele dishwashers.

MieleAll Miele dishwasher codes

F18
May need a pro

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.

Safety first: unplug the dishwasher (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Miele F18

  1. 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.

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

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked