Error code · Dishwasher

ASKO Dishwasher Code F12: Water Inlet Problem, Not Filling in Time

Seeing F12 on an ASKO DBI564IS.U, DBI564TS.U or DBI564PS.U, or on a DFI or DSD with the F-code display, means the tub did not fill fast enough. It is the first of two water inlet messages.…

Medium · inspection needed

(713) 804-6320

Code: F12
Appliance: Dishwasher
Brand: ASKO
Warranty: 30-day workmanship

What F12 means

Seeing F12 on an ASKO DBI564IS.U, DBI564TS.U or DBI564PS.U, or on a DFI or DSD with the F-code display, means the tub did not fill fast enough. It is the first of two water inlet messages. When the level fails to rise in time, the control ends the program. The owner's manual starts you at the supply valve and the filters.

Common causes of F12

The supply valve under the sink is shut or half open
Coarse or fine filters coated with debris
An inlet valve that opens weakly
Low pressure where the dishwasher connects

✓ One safe check you can try

1. Open the water supply valve to the dishwasher all the way. 2. Rinse the coarse filter and the fine filter. 3. Run any program and see if the message clears. 4. If F12 stays, close the supply valve and leave the dishwasher off.

! Why to stop there

Whether the inlet valve opens completely or is clogged inside
Whether enough pressure reaches the machine from your home's plumbing
Whether the level sensor notices water once it arrives

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Dishwasher codes

F67ASKO Dishwasher Code F67: Water Inlet Warning, Second Type F68ASKO Dishwasher Code F68: Brushless Drain Pump Not Responding to the Control Flashing LightsASKO D3251 Dishwasher Flashing Lights: Five Programs That Signal a Problem D3530 display texts: Overfilling / Water Inlet Fault / Inlet Valve Leakage / Drainage / Blocked FilterASKO D3530 Dishwasher Display Texts: Overfilling, Water Inlet, Valve Leakage and Drainage D5434 display messages: Overfilling / Water outlet fault / Water inlet fault / Inlet valve leakageASKO D5434 Dishwasher Display Messages: Overfill, Outlet, Inlet and Valve Leakage F10ASKO Dishwasher Code F10: Too Much Water in the Tub F11ASKO Dishwasher Code F11: Drain Pump Not Emptying the Tub F40ASKO Dishwasher Code F40: Inlet Valve Leaking Water Into the Tub

F12F12 questions

What causes F12 on an ASKO dishwasher?

The fill took too long. A closed valve and dirty filters are the usual reasons, and both take only minutes to check before you call.

The filters are clean and F12 returned. What next?

Then the trouble sits deeper in the water path, such as the inlet valve or pressure at your connection. We test the fill path step by step.

Do you repair this model?

Yes, and the written price comes before the work. Our technician arrives within a three-hour arrival window.

Book a visit

Still seeing F12?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 804-6320