What F8 means on your Asko dishwasher (asko dishwasher f8)
An asko dishwasher f8 code is a legacy blink-code problem, shown as blink pattern L1 plus L3. It means the pressure sensor detected excessively low pressure during the final rinse, which the control interprets as a blocked filter restricting water flow to the spray arms. This is one of the more owner-friendly legacy problems, since the filter assembly at the bottom of the tub is designed to be removed and cleaned without tools on most DW20.1-generation machines.
Symptoms
The symptoms below are the ones that pin this problem on your Asko dishwasher rather than a similar-looking problem elsewhere in the machine. A dishwasher can show them one at a time or all together, slowly over weeks or suddenly after a surge, a spill, or a recent install-and-test.
- Dishes come out of the final rinse still carrying visible food residue
- Water pressure at the spray arms sounds noticeably weaker than at the start of the cycle
- A gritty film is visible on the filter screen when inspected
- Blink pattern L1+L3 appears in the service menu
Common causes
These symptoms on an Asko dishwasher can spring from several different problems, so consider the likeliest first before anything exotic. That order makes clear whether your dishwasher needs nothing more than a check or a proper repair with correct Asko parts.
- Food debris packed into the fine filter — particles have accumulated faster than they are being rinsed clear
- Coarse filter not seated correctly — a misaligned filter restricts flow even when relatively clean
- Broken glass or bone fragments lodged in the filter assembly — hard debris is partially blocking the mesh
Troubleshooting steps you can try
Work down this list on your Asko dishwasher one step at a time before booking a visit. If any step on the dishwasher brings you near live wiring, gas, a hot oven cavity, standing water, or a sealed system, stop there and hand it to a qualified technician.
- Remove the filter assembly at the bottom of the tub, following the twist-and-lift release most DW20.1 models use.
- Rinse the fine mesh filter under running water and scrub off any caked-on residue.
- Check the coarse filter is seated and locked back into place before closing the door.
- Run a short rinse cycle afterward to confirm pressure has returned to normal.
Parts a technician may replace
Diagnosis on your Asko dishwasher may lead a technician to inspect, test, or replace the fine filter, coarse filter, and pressure sensor. The failed part is confirmed on the dishwasher before anything is ordered, and only genuine OEM or trusted-supplier parts — matched by model, serial, and Art. No. — go back into the machine.
When to call a technician
A blocked-filter problem that returns immediately after cleaning needs an experienced technician to check the pressure sensor and spray arm feed. Rated Medium, this condition is not urgent for your Asko dishwasher — though where F8 persists on the dishwasher after the checks, a technician confirming the problem first will save replacing the wrong component. We are not affiliated with Asko, Gorenje, or Hisense; your dishwasher is repaired independently by experienced technicians with genuine OEM or trusted-supplier parts and a 30-day labor warranty. When you book, have your Asko dishwasher’s model, serial, and Art. No. to hand so the exact part for your build is matched before the visit and F8 is put right in as few trips as possible.
Related help and Asko resources
For a persistent F8 on your Asko dishwasher, book Asko dishwasher repair, read our other dishwasher error-code guides, follow the step-by-step repair guides, schedule service whenever works for you, or check your city on our locations page. Complete model and specification details for your Asko dishwasher can be checked at the maker’s site, us.asko.com.
