Skipping asko dishwasher filter cleaning is one of the most common reasons we get called out for a dishwasher that “just is not cleaning like it used to.” The filter sits at the bottom of the tub, catching food particles before they can recirculate through the spray arms, and it fills up faster than most owners expect.
Where the filter is and how it comes out
On most Asko dishwashers, the filter assembly sits at the bottom of the tub, beneath the lower spray arm. It is typically a twist-and-lift design — turn the filter housing counterclockwise until it releases, then lift the whole assembly straight up and out. Some models separate into a coarse filter and a fine mesh filter that nest together; if yours does, note how the pieces fit before you pull them apart, so reassembly is straightforward.
How often asko dishwasher filter cleaning should happen
A household running a dishwasher daily should check the filter every one to two weeks; lighter use can stretch that to once a month. Signs you have waited too long include a gritty film on glassware, a musty smell when you open the door, or dishes coming out with visible food residue even on a normal cycle. If any of those show up, do not wait for the next scheduled check — clean it right away.
The actual cleaning process
Once removed, rinse the filter assembly under running water, using a soft brush — an old toothbrush works well — to dislodge trapped particles from the mesh. Avoid anything abrasive that could distort the fine mesh screen; a distorted screen lets larger particles through and defeats the point of filtering at all. Check the sump area beneath where the filter sits for any debris that has settled there, and wipe it out before reinstalling the filter.
Reinstalling correctly matters as much as cleaning
A filter that goes back in loose or misaligned will not seat against the sump properly, and water can bypass the filtering path entirely. Line up the assembly the way it came out, then twist clockwise until it locks into place — you should feel it seat firmly, not just rest loosely on top of the sump opening. A loose filter is a common, easily missed cause of the exact poor-cleaning symptoms that filter maintenance is supposed to prevent.
When filter cleaning is not enough
If dishes are still coming out dirty after a thorough asko dishwasher filter cleaning, the problem may be further upstream — a clogged spray arm, a failing wash pump, or mineral buildup on the internal components. Our dishwasher repair service covers exactly these follow-on problems, and our dishwasher error code pages can help if the display is also showing a problem. Persistent poor cleaning despite a clean filter is worth scheduling a diagnostic visit for rather than continuing to guess.
How asko dishwasher filter cleaning fits into a wider routine
Filter maintenance works best as one part of a broader routine rather than the only task you ever perform — pair asko dishwasher filter cleaning with periodic spray arm checks and occasional descaling, described in our other maintenance guides, for the most consistent results over the appliance’s full lifespan. If you want to confirm your specific model’s recommended filter type and cleaning interval, Asko’s manuals section lists model-specific guidance that can differ slightly across the dishwasher lineup, particularly between coarse-only and dual-stage filter designs. Households with larger families or frequent heavy-soil loads should lean toward the more frequent end of any recommended interval rather than the least frequent, since the filter fills faster under sustained heavy use than the general guidance assumes. Building this into a weekly kitchen routine, rather than treating it as an occasional deep-clean task, keeps results consistent between full descaling sessions.
A quick reference for asko dishwasher filter cleaning frequency
As a simple rule of thumb, check weekly for a household of four or more running the dishwasher daily, and monthly for a smaller household or lighter use pattern, adjusting up if you notice any of the warning signs described above sooner than expected. Writing this interval on a small note near the dishwasher, at least until it becomes second nature, helps keep asko dishwasher filter cleaning from slipping between busier weeks.
