What F4 means on your Asko dishwasher (asko dishwasher f4)
An asko dishwasher f4 code is a legacy blink-code problem reported as blink pattern L4. It signals a water intake problem triggered one of two ways: fewer than eighty flow-meter pulses were counted within sixty seconds, or the full expected pulse count was not reached within two hundred fifty-five seconds. In plain terms, the machine is not filling at the rate or volume it expects, whether because water is not arriving fast enough or the flow sensor is not counting correctly. This is distinct from the current-display generation, where a comparable water-inlet problem is numbered F12 or F67 instead.

Symptoms
Read through the list and compare it with how your Asko dishwasher is actually behaving, since problems with different fixes can look alike at first. The dishwasher may reveal a lone symptom or a group of them, appearing gradually or the instant after a power blip, a heavy cycle, or new installation work.
- The cycle stalls at the fill stage with little or no water audible entering the tub
- A partial fill is visible but the cycle does not proceed
- Water pressure to the kitchen more broadly seems weak at the same time
- The fill process restarts repeatedly without completing
Common causes
A single set of symptoms on your Asko dishwasher can come from any of the causes below, listed with the common ones first. Eliminating them methodically separates the quick checks anyone can make on a dishwasher from the problems that need trained diagnosis and Asko parts.
- Water supply valve partly closed — the shutoff behind the dishwasher is not fully open
- Clogged inlet filter screen — sediment has built up on the mesh screen inside the inlet valve fitting
- Weak household water pressure — pressure at the fixture is too low for the flow meter to register a normal fill rate
- Failed flow meter — the sensor that counts fill pulses is not turning or reporting correctly even with normal water flow
Troubleshooting steps you can try
Run down this list on your Asko dishwasher in order before arranging a visit, keeping the easy checks first. Any step on the dishwasher that involves live voltage, gas, a hot cavity, standing water, or a sealed system is one to leave to an experienced technician.
- Confirm the shutoff valve under the sink or behind the dishwasher is turned fully open.
- Run the kitchen faucet briefly to check that household water pressure is normal.
- Turn off the water supply and, if comfortable, remove and rinse the inlet screen in the fill fitting.
- Restart a cycle after clearing the screen to see whether the fill completes normally.
Parts a technician may replace
When your Asko dishwasher shows this problem, a technician will inspect, test, or replace the inlet valve, flow meter, and water pressure regulator as needed. The part is pinned down from your dishwasher’s model, serial, and Art. No., and only genuine or trusted-supplier parts go into the dishwasher, so the repair lasts.
When to call a technician
A water intake problem that persists after the supply valve and inlet screen have been checked needs an experienced technician to test the flow meter and inlet valve. This problem sits at Medium severity, so your Asko dishwasher is safe to leave for now; if F4 keeps returning on the dishwasher despite the steps above, get a technician to establish the cause before ordering parts. Your Asko dishwasher is handled independently — we have no affiliation with Asko, Gorenje, or Hisense — by experienced technicians using genuine OEM or trusted-supplier parts, with 30 days of labor warranty on the dishwasher. The Art. No., alongside the model and serial on your Asko dishwasher, is what lets us order the right part for your dishwasher before we arrive and put F4 right without unnecessary return trips.
Related help and Asko resources
If F4 has not cleared on your Asko dishwasher, you can book Asko dishwasher repair, browse our dishwasher error-code guides, put our step-by-step repair guides to use, schedule service for service, or locate help on our locations page. To confirm the specifications for your Asko dishwasher, the manufacturer’s site is us.asko.com.