Miele dishwasher F11 error and standing water

F11 on a Miele usually points to a drain problem, but it does not automatically mean the pump itself has failed. If there is still standing water, the fault is more often a restriction, a weak pump, or an issue around the non-return valve.

Before checking anything internal, isolate the dishwasher from the mains.

1. Check the sump area thoroughly Remove the filters again and inspect the sump beneath for debris such as glass, labels, grease build-up or food sludge. Even a partial blockage can slow draining enough to trigger F11 near the end of the cycle.

2. Inspect the drain pump impeller On many Miele dishwashers you can access the pump cover from inside the tub. Check whether the impeller turns freely and is not jammed by broken glass or bone fragments. If it is stiff, damaged or loose on the shaft, the pump may be faulty.

3. Check the non-return valve Yes, this can cause the symptom. If the valve is stuck, distorted or clogged, water may not discharge properly or can run back into the base after pumping out. Remove it if accessible and check for debris and damage.

4. Check the drain path beyond the hose Look at the spigot on the sink trap/standpipe connection. A blocked sink trap spigot is very common, especially if the hose itself seems clear.

5. Listen during drain If the pump hums but water leaves slowly, suspect a blockage or weak pump. If it is silent, the pump, wiring or control side needs testing.

If the simple checks do not sort it, the next step is proper electrical testing of the drain pump circuit. For any mains electrical work, use a qualified appliance engineer.

WhitegoodsHelp AI