Miele Dishwasher Error Code F11
Drainage fault; water is present in the appliance and is not being drained off
Drainage fault; water is present in the appliance and is not being drained off. Also registered if heater relay K1/1 is not activated after F51 check.
First step from the service manual
Check the drain hose for correct positioning (kinked or blocked).
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for F11.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What F11 means on a Miele dishwasher
The F11 error code on a Miele dishwasher indicates a drainage fault, meaning the appliance has detected water that is not being evacuated from the tub within the expected time frame. The drain system on these machines involves a drain pump, drain hose routing, and a sump area where standing water accumulates before being expelled. When the control board does not detect successful drainage within its programmed window, it halts the cycle and logs F11 to alert the user or technician.
The most immediate physical cause to investigate is the drain hose itself. A kinked, clogged, or improperly routed drain hose will block water from exiting the appliance entirely or slow drainage to the point where the timeout triggers. Beyond the hose, the drain pump can fail due to a foreign object lodged in the impeller, a burned-out motor winding, or a seized pump body. The sump filter and coarse filter should also be inspected, as heavy debris buildup can restrict flow before water even reaches the pump.
F11 has a secondary trigger condition that is less obvious: the code will also register if heater relay K1/1 is not activated following an F51 check. This means a relay-level electrical fault in the heating circuit can contribute to or cause this drainage error code, making it important to consider the control board and relay condition when drain components check out normal. In these cases, the fault is electrical rather than mechanical, and diagnosis shifts toward relay continuity and board-level testing.
Source: manufacturer service documentation.
Common causes of F11
- 01
Kinked or blocked drain hose
Wiring / connectionA drain hose that is bent sharply, pushed too far into the standpipe, or clogged with debris will prevent water from exiting. Check the full length of the hose from the pump outlet to the drain connection and confirm it is routed without tight bends.
- 02
Clogged filter or sump
Wiring / connectionFood debris, grease, and foreign objects can accumulate in the coarse filter, fine filter, and sump area, restricting water flow before it reaches the drain pump. Remove and clean all filter components thoroughly.
- 03
Failed or obstructed drain pump
Part replacementA foreign object such as a broken glass shard, a label, or a small utensil can jam the pump impeller and prevent it from spinning. If the pump motor itself has failed, it will need to be replaced to restore drainage.
- 04
Blocked household drain or standpipe
Wiring / connectionIf the sink drain or standpipe the dishwasher connects to is clogged, water cannot exit regardless of how well the dishwasher pump is functioning. Run the sink tap and observe whether the connected drain flows freely.
- 05
Heater relay K1/1 fault triggering secondary F11
Part replacementIf an F51 check was previously run and heater relay K1/1 did not activate, F11 can be registered as a downstream result of that relay failure. In this scenario the drain system may be physically intact, and diagnosis should focus on the relay and control board.
Frequently asked questions about F11
What does F11 mean on a Miele dishwasher?
Can I fix the F11 error myself without calling a technician?
Is it safe to use my Miele dishwasher when F11 is displayed?
Will resetting the dishwasher clear the F11 error?
How much does it cost to repair an F11 error on a Miele dishwasher?
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