The ASKO F2 error code signals a water inlet fault on your dishwasher — the machine is not receiving enough water to begin or continue a wash cycle. ASKO dishwashers are precision-engineered Scandinavian machines with sophisticated water management systems, and F2 is their way of telling you that the expected water fill level has not been reached within the allowed time window.
A note on ASKO error code numbering: ASKO uses different code formats across its model ranges. On the DW90 series (including DW90.1, DW90.2, and related models), the display shows codes in an F:10, F:11, F:12 format rather than F1, F2, F5. If your ASKO dishwasher displays F:11, it corresponds to the same water inlet fault described on this page. The information below applies primarily to ASKO dishwashers sold in Australia across multiple model ranges — but because error code meanings can vary between models and production years, our technicians can diagnose the exact fault on site if you are unsure which code your machine is showing.
As authorised ASKO service agents in Brisbane, we see F2 regularly across the ASKO dishwasher range. It is usually one of the more manageable ASKO faults — in many cases, the cause is something external to the machine like a closed tap or kinked hose. But when the cause is internal, such as a failed inlet valve or activated flood switch, professional repair is needed.
What Does the ASKO F2 Error Code Mean?
F2 indicates that the dishwasher’s control system has attempted to fill the wash tub with water but has not detected the expected water level within a set timeout period. ASKO dishwashers use a combination of a water inlet valve (which opens to allow water in), a flow meter (which measures how much water has entered), and a pressure switch or float sensor (which confirms the water level in the tub).
When any part of this chain fails — no water available, valve stuck closed, flow meter not registering, or sensor not detecting the water level — the control board triggers F2 after the fill timeout expires. The machine then stops the cycle and may attempt to drain any water that did enter the tub.
This code appears across the ASKO D-series dishwashers (D5436, D5456, D5636, D5896), the newer DBI series (DBI343, DBI654, DBI675), and the professional-grade models. The fault logic is similar across all ranges, though the specific components and part numbers vary between generations.
Common Causes of the ASKO F2 Error
Water supply tap closed or partially closed. The single most common cause — and the easiest fix. The tap supplying your dishwasher may have been accidentally bumped closed, or it may not be opening fully due to a stiff washer. This is the first thing to check and resolves the issue in roughly a third of F2 callouts we attend.
Kinked or crushed inlet hose. The water inlet hose connects from the tap to the back of the dishwasher. If the dishwasher has been pushed back too far against the wall, or if the hose has been bent sharply, water flow can be significantly restricted. ASKO dishwashers are particularly sensitive to flow rate because their fill timer is relatively short.
Blocked inlet hose filter. There is a small mesh filter screen inside the inlet hose connector (at the tap end, the machine end, or both). Sediment, pipe scale, and debris from the water supply can clog this filter over time, reducing flow to below the level the machine requires. Brisbane’s water supply can carry fine sediment, particularly after mains work in your street or after heavy rainfall events.
Failed water inlet valve. The inlet valve is an electrically operated solenoid valve inside the dishwasher that opens when the control board signals it to fill. The solenoid coil can burn out (preventing the valve from opening), or the valve mechanism can seize due to mineral buildup. When the valve fails, no water enters the machine regardless of supply pressure.
Flood switch activated. ASKO dishwashers have a flood protection system — a float switch in the base of the machine that triggers if water leaks into the base tray. When activated, the flood switch locks out the inlet valve to prevent further water entry. The F2 code can appear because the machine is being prevented from filling, even though the actual problem is a leak somewhere else. Check the base of the dishwasher for any signs of water.
Low mains water pressure. ASKO dishwashers require a minimum water pressure to fill within the expected timeframe. If your home’s water pressure is unusually low — which can happen in elevated suburbs, during peak demand periods, or if you have a pressure-limiting valve installed — the machine may time out before reaching the required fill level.
DIY Troubleshooting Steps
Check the tap. Open the kitchen cupboard under the sink and locate the water tap that feeds the dishwasher. Turn it fully counter-clockwise to ensure it is completely open. If the tap has not been turned in a long time, it may be stiff — use gentle but firm pressure. Test flow by briefly disconnecting the inlet hose at the tap end (with a towel ready) to confirm water comes through.
Inspect the inlet hose. Pull the dishwasher forward slightly to see the rear connections. The inlet hose should have a smooth, sweeping curve with no sharp bends or kinks. If the hose is crushed or kinked, straighten it and ensure the dishwasher is not pushed too far back when you slide it into position.
Clean the filter screen. Turn off the water tap first. Unscrew the inlet hose from the tap end. Inside the hose coupling, you will find a small mesh filter disc. Carefully remove it with needle-nose pliers and rinse it under running water. If it is heavily clogged, soak it in white vinegar for 15 minutes to dissolve mineral deposits. Refit the filter, reconnect the hose, and turn the tap back on.
Reset the machine. After checking the above, turn the dishwasher off at the power point for 60 seconds, then power it back on and start a new cycle. If F2 does not reappear, the issue was likely the water supply. If it returns, the fault is internal.
When to Call a Professional
If the F2 error persists after confirming the water supply is good, the hose is clear, and the filter is clean, the fault is internal — either the inlet valve, flood switch, flow meter, or control board. These components require disassembly of the dishwasher to access and test.
ASKO parts are specialised and not interchangeable with other brands. As authorised ASKO service agents, we stock common ASKO parts and have access to the full ASKO parts catalogue for Brisbane. Per ASKO Australia’s support guidelines, all internal repairs should be performed by an authorised service provider to maintain warranty coverage.
What the Repair Typically Involves
Our technician will start by confirming adequate water supply pressure and flow, then run a diagnostic cycle to observe the fill sequence. If the inlet valve is not opening, we test the solenoid coil and check for control board signals. If the flood switch is activated, we inspect the base tray for water and identify the source of any leak.
Inlet valve replacement is the most common repair for internal F2 faults, taking approximately 30 to 45 minutes. If the flood switch has been triggered by a leak, the leak source (often a hose clamp, sump seal, or door gasket) needs to be identified and repaired before resetting the flood switch.
How Always Prompt Repairs Can Help
We service ASKO dishwashers across Greater Brisbane, from Indooroopilly and the western suburbs to Carindale and the bayside. Our technicians are trained on ASKO’s specific design philosophy and carry common ASKO parts. We also handle the companion ASKO F1 error (drainage) and other ASKO fault codes.
Our callout fee is $219, which includes the first 30 minutes of labour. Additional time is $45 per 15-minute block. Seniors, pensioners, and students receive a $20 discount.
Book your ASKO dishwasher repair online or call us on (07) 3062 2377.
Frequently Asked Questions
What does F2 mean on an ASKO dishwasher?
F2 indicates a water inlet fault — the dishwasher is not receiving enough water to fill within the expected timeframe. Common causes range from a closed water tap (easy fix) to a failed inlet valve (requires a technician).
How do I reset the F2 error on my ASKO dishwasher?
After checking and fixing the water supply (tap open, hose clear, filter clean), turn the dishwasher off at the power point for 60 seconds. Turn it back on and start a new cycle. If the water supply issue has been resolved, the error should not return.
Can a plumber fix an ASKO F2 error?
A plumber can help if the issue is with the water supply tap or plumbing, but if the fault is internal to the dishwasher (inlet valve, flood switch, control board), you need an appliance repair technician — specifically one experienced with ASKO machines, as their parts and diagnostics are brand-specific.
How much does it cost to fix an ASKO F2 error in Brisbane?
Our $219 callout includes diagnosis and the first 30 minutes of labour. If the inlet valve needs replacing, we provide a quote for the part before proceeding. ASKO parts are slightly more expensive than generic brands, but the repair is well within the cost range of most dishwasher repairs.