Miele Dishwasher F11 — What It Means & How to Fix It

By Callum Griffin · Researched and verified against manufacturer and repair documentation · Reviewed September 2026

F11 means the wash cabinet isn't draining — usually a mis-seated non-return valve, a blocked drain pump or clogged filters, and Miele USA walks owners through fixing it.

What this code means

F11 appears when the dishwasher can't pump the water out and leaves standing water in the tub. In Miele's own words for the G 1xxx–G 6xxx range, the two usual suspects are the non-return valve being seated wrong inside the sump and a drain pump blocked with debris, plus the usual clogged filter combination and kinked drain hose. Because all of that lives behind the easily removed filter assembly, F11 is one of the few Miele dishwasher codes with a genuine owner procedure — Miele USA documents it step by step.

Miele's page for F11 is written for the G 1xxx–G 6xxx generations; newer G 7xxx machines may show the same drain fault as a flashing inlet/drain light rather than a number.

Most likely causes

CauseHow likelyDIY-fixable?
Filter combination clogged with food debris Very common Yes — rinse out the filters
Non-return valve mis-seated or drain pump impeller blocked Common Yes — Miele's owner procedure
Drain hose kinked, sagging or blocked Occasional Yes — straighten and check
Drain pump failed electrically Less common No — technician job

What you can try yourself

  1. Switch the dishwasher off and unplug it before touching anything in the sump.
  2. Remove the filter combination from the base of the wash cabinet and rinse it thoroughly under running water.
  3. Press the catch on the non-return valve inward, tip it out, and check the drain pump impeller spins freely — push a small sponge through to clear debris, then remove anything stuck.
  4. Reinstall the non-return valve vertically from above, make sure the catch clicks home and it sits flush, then lay the filter combination back flat.
  5. Check the drain hose behind the machine for kinks or loops, then run a short program to confirm the water pumps away.

When to call a technician

Typical professional repair cost: Free if it's a blockage you clear yourself; roughly $200–450 if the drain pump needs a technician.

Frequently asked questions

I cleaned everything and F11 came back — what next?

If the filters, non-return valve and hose are all clear and the code still appears, the drain pump or its pressure sensing is failing — that's a technician job.

Do I need to remove the machine to check anything?

No. Miele designed the non-return valve and pump access to sit right under the filter assembly — the whole owner-level repair happens from inside the open door.

Sources checked

Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.

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