Miele dishwasher F11 error code
What F11 means on a Miele dishwasher
Drain fault: the appliance is not draining.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Miele dishwasher, F11 is a drain fault: the dishwasher is not draining. You may notice water left in the bottom of the machine, and the code can also appear when the dishwasher will not start.
Engineers sometimes find a piece of broken glass jamming the drain pump, or food debris clogging or wearing out the one-way valve that stops dirty water running back in. They also sometimes find debris blocking the drain hose, a drain pump that has failed, or worn seals that stop the pump from emptying the machine fully. Another thing engineers sometimes find is that the way the hose joins the sink waste lets water from the sink flow back into the dishwasher.
An engineer will usually run the dishwasher to watch it drain, then check the drain pump, the one-way valve, the drain hose and the connection under the sink. They clear any glass or debris. Where needed, they replace the drain pump, the valve, the hose or the worn covers, or adjust the sink connection. Replacement parts often have to be ordered and fitted at a second visit.
Written by our engineers from NAC's own jobs.
Faults this code turns up with
What our engineers found and fixed for each, from NAC's own repair records, with Miele's own figures where we have enough of them.
What we fixed. We'll add what our engineers found, the parts they fitted and what customers typically paid once enough of these repairs are confirmed. How we work out our figures.
Before you check anything yourself
- Switch the dishwasher off and unplug it, or turn it off at the isolator switch, before you touch anything. Our guide to safely isolating an appliance walks you through it.
- An error code tells you where to look, not that it's safe to take the dishwasher apart. Don't remove panels or covers to get at the parts it points to: that's an engineer's job.
- If it involves the mains supply, sealed parts, or you're not confident at any point, stop and book a qualified engineer rather than risk injury or further damage.
Rather leave it to us?
- Fixed-price quote before any work starts
- Same or next-day visits where available
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