What F10 Means
WHICH MACHINES THIS APPLIES TO: F10 is a two-digit code and belongs to the two later Asko dishwasher platforms. It does not exist on the older DW20 and DW70 machines, where overfilling is F2.
DW90 PLATFORM - printed on the display with a colon, as F:10. Only the DW90.1 panel shows the code itself; the DW90.2 and DW90.3 panels show the same fault in words, and an audible signal sounds when a fault is indicated on the display. The service manual reads "Overfilling. Too much water in the machine (pressure sensor) or float activated. If the water has not been emptied within 60 seconds, the program stops (drain pump activated)."
CURRENT DBI, DFI, DSD AND DW60-SERIES MACHINES - printed without a colon, as F10. The user manual names it "Overfilling water 1", and its instruction is different from the DW90 one: unblock the drain pump as described in the care and maintenance chapter, and if the problem persists contact service. On these machines pressing any button clears the error message from the display, and stored errors can be read back at any time through the settings menu under "Failure readout".
WHAT IS COMMON TO BOTH: the machine has more water in it than the programme asked for, or the float in the base has lifted. It runs the drain pump, gives itself a minute, and stops if the level has not come down.
CLASSIFICATION: fault, with a water-escape risk, because a lifted float means water has collected where it should not be.
Common Causes of F10
- Drain pump blocked by glass, a stone or a label so it cannot clear the water
- Blockage in the drain hose or at the waste connection
- Water leaking into the base tray and lifting the float
- Inlet valve passing water when it should be closed
- Flow meter or pressure sensor reporting the level incorrectly
- Damaged wiring between sensors and the control unit
🔧 One Safe Check You Can Try
Close the dishwasher's water supply tap before anything else and leave it closed. Then switch the machine off at the outlet or the breaker and let it stand until the water in the tub is no longer hot, because the next step involves reaching into the sump. On the current DBI, DFI and DSD machines - and only on those, because this is where Asko documents it as an owner task - the care and maintenance chapter describes unblocking the drain pump: lift out the coarse and fine filters, scoop the standing water out with a cup and a sponge, release the yellow drain pump stop, turn the pump wheel by hand to check it moves freely and to free whatever is caught in it, then refit the stop and the filters. On a DW90 machine the drain pump is not documented as an owner-serviceable part, so the owner's work stops at the filters and the drain hose. Either way, look at the cabinet floor for water before you call: a float that has lifted on a real leak is a different repair from a blocked pump.
⚠ Why You Shouldn't Go Further Than That
- The drain pump can restart the moment power is restored, so the machine has to be off at the outlet or the breaker before the pump stop is released.
- The tub holds dirty standing water with broken glass in it, so it is scooped out rather than felt through.
- The float and the base tray sit below the wash tub and need the appliance drawn out of the cabinet, which is not an owner task on any of these machines.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.