A pool of water sitting above the filters at the end of a program is one of the few Asko dishwasher faults the manufacturer explicitly hands to the owner. The condition is documented consistently: water not drained after 120 seconds of pumping, program stops. The code depends on the platform. Current machines show F11, Water outlet fault. The DW90 generation shows F:11 with the identical wording. The older DW20 and DW70 platforms show F7, described as a pumping out fault. Current machines also carry F68, a BLDC drain pump fault, and F52, a water level fault whose published first action is to clean the coarse and fine filters.
Before You Reach Into the Tub
Switch the dishwasher off at its wall switch or its breaker. If the program ran hot, leave the door ajar and let the water in the tub cool before you put a hand in it. Put towels and a shallow tray on the floor in front of the machine, because the water you scoop out has to go somewhere. Only once the machine is dead and the water is cool should you start removing anything.
The Checks Asko Writes for Owners
Asko's own check list for this fault is the drain pump, the hoses, the drain hose fittings, the control unit and the cables, and it adds specifically that you should also check whether the filter is blocked. The owner-level part of that list:
- The filters. Lift out the coarse filter and then the fine filter and wash them. Food debris packed into the fine mesh is the single most common reason a machine cannot move water.
- Standing water. Scoop it out with a cup and a sponge once the filters are clear.
- The drain pump. Asko documents unblocking the drain pump as an owner task in the care and maintenance chapter: with the filters out, remove the drain pump stop, check the impeller for glass fragments, fruit stones or a plastic clip, turn the wheel by hand and refit everything. This applies to models where the pump is reached from inside the tub, and the arrangement is not identical across generations, so work from your own model's care and maintenance chapter rather than from a photo of a different machine.
- The drain hose. Look for a kink where the machine was pushed back into its opening, and check the hose has not been pushed so far into a waste connection that it restricts itself.
- The waste connection. If the kitchen sink is also draining slowly, the restriction is in the house plumbing and the dishwasher is a witness rather than the culprit. A new garbage disposal with its knockout plug still in place blocks the dishwasher completely.
The Fault That Appears After the Program Ends
The DW20 platform carries a separate code, F8, for a blocked filter: the pressure sensor reads an abnormally low pressure during the final rinse and the indication appears after the end of the program. Checks listed are the filter, the sump pressure chamber and the pressure sensor. It is a useful reminder that on the older machines the filter warning may reach you after the fact rather than during the cycle.
Where to Stop
If the filters and the pump chamber are clear, the hose is unkinked and the waste runs freely, what remains is inside the cabinet: a failed drain pump, a split or collapsed internal hose, a pressure sensor reading incorrectly, or a control that never drives the pump. Reaching any of those means working under a machine that is fixed into a run of cabinets with mains wiring and a water supply alongside, which is technician work. Leave the water supply valve closed and the machine switched off until it is looked at, and book an Asko dishwasher repair with the code you saw and the state of the filters when you opened them.