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The open lower cabinet beside a new dishwasher in a home kitchen, the dishwasher's drain hose rising in a high loop and clipped to the underside of the counter, a braided supply line running to a quarter-turn valve, a folded towel on the cabinet floor, nobody in the frame.

Asko F12: water inlet on a dish care machine

ASKO's own manual gives a single, direct fix for this alert: check that the water supply valve is on.

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Mon–Sat, 8am–8pm

  • Water supply and drain
  • Water supply and shutoff connection
  • Source: ASKO

Book a visit

Three short steps, about a minute.

or call (844) 638-8309

What F12
actually means.

ASKO's own manual gives a single, direct fix for this alert: check that the water supply valve is on. It also states a required pressure range for the machine to operate at all, which a newly connected supply line can fall outside of if a valve was left partly closed.

ASKO appliance display · also shown as F67

What to do when F12 shows on the appliance

Kind of codeWater supply and drain

The new appliance is reporting what it gets from the water connections behind it. A no-water or slow-fill message on the first fill usually means the supply valve is still closed or only half open, or the new line kinked when the unit slid back; a drain message means the drain hose is pinched, pushed too deep into the standpipe, or looped higher or lower than the installation instructions allow. Open the valve fully, straighten the hose, set it to the height the manual gives, and run the cycle again.

Usually leads toWater supply and shutoff connection

New supply lines from a working quarter-turn stop to each water appliance, tested under pressure.

Shows up asWater Hammer After a Hookup: Banging Pipes When a Valve Shuts

Water hammer after a hookup is a bang, knock or shudder in the pipes each time a newly connected appliance closes its water valve.

MakeASKO

ASKO installs mean a compact Scandinavian dish care machine or laundry pair, set level and stacked with the maker's own kit where space is short.

SourceASKO US dishwasher instructions for use, document 875097en

Confirmed in ASKO's US dishwasher instructions for use and installation manual (document 875097en); ASKO also documents a related F67 alert tied to the same pressure range.

Before you book,
in this order.

Each step comes from ASKO's own guidance for F12 on its appliances. Follow it to the end: the last card says whether this is a visit.

01

Locate the water supply valve behind the cabinet and confirm it is turned fully open.

02

Check that the supply line isn't kinked or pinched where it enters the cabinet space.

03

Confirm the home's water pressure falls within ASKO's stated range of roughly 4 to 140 psi.

04

If the valve is open and the pressure is normal, book a visit.

Still there?

It usually turns into water supply and shutoff connection. Book with the code and the model number.

What not to do

F12 does not mean the inlet valve inside the machine has failed on its own. ASKO's own fix starts at the supply valve behind the cabinet, not inside the appliance.

What you may
notice with it.

The appliance problems F12 tends to arrive with. Answer these at the appliance before anyone is booked.

All problems

Before you call

Water Hammer After a Hookup: Banging Pipes When a Valve Shuts

All 6 causes, cheapest first

It also comes with

Close view behind a new white front-loading laundry machine, two chrome water hammer arrestors fitted on the hot and cold wall valves above braided stainless fill hoses that hang in a gentle loop, a painted wall and the top edge of the machine in soft focus, soft daylight. Problem

Water Hammer After a Hookup: Banging Pipes When a Valve Shuts

6 causes, cheapest first

Where F12 usually leads

Water supply and shutoff connection.

New supply line and quarter-turn stop for a refrigerator, ice maker, dish care machine or laundry pair, flushed and tested under pressure · low.
Book a visit What the job involves

ASKO
appliances.

ASKO installs mean a compact Scandinavian dish care machine or laundry pair, set level and stacked with the maker's own kit where space is short.

ASKO appliance installation

More ASKO codes

SHOF11

Water supply and drain on other makes

Bosch E17Cove Error 800115Dacor 4CDCS Blank display / OFF after power interruptionElectrolux HO SEFisher & Paykel Water is not getting to the machineFrigidaire E1Gaggenau E:3200
All 38 codes of this kind
A bright kitchen during an installation, a new stainless French door refrigerator on a low four-wheel appliance dolly being eased toward an empty cabinet opening, a technician seen from behind and shoulders down guiding it with one hand on the side of the cabinet, a folded moving blanket and a coil of new braided water line on a protective floor runner, cardboard corner guards at the edge of the frame, even daylight. ASKO builds this

Cold storage

Setting a new refrigerator, freezer, wine or beverage unit or ice maker into its opening: measured, connected to water, leveled and started.

 A kitchen during an installation, a new stainless built-in dishwasher halfway slid into its opening under a stone counter, its kick plate removed, a technician seen from behind and shoulders down on one knee guiding a gray drain hose and a braided supply line through the hole in the side cabinet, the sink cabinet doors open beside him, a flashlight on the floor, even daylight. ASKO builds this

Dish care

Fitting a new dishwasher or dish drawer under the counter: supply line, drain loop or air gap, power, mounting brackets and a first test cycle.

 A tidy home laundry room during an installation, a new white front-loading washer standing a little away from the wall, a technician seen from behind and shoulders down holding a spirit level across its top, four removed shipping bolts lying in a row on a folded cloth on the floor, new braided fill hoses coiled beside the machine, a short rigid metal exhaust collar on the wall behind, even daylight. ASKO builds this

Laundry

Setting up a new washer, dryer or stacked pair: shipping bolts out, hoses on, drain and exhaust run connected, power checked and the machines leveled.

In ASKO's own words

F12 Water inlet fault 1. Check that the water supply valve is on.
ASKO US dishwasher instructions for use, document 875097en

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Confirmed in ASKO's US dishwasher instructions for use and installation manual (document 875097en); ASKO also documents a related F67 alert tied to the same pressure range.

ASKO F12 appliance installation,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family unpacking groceries into a newly fitted kitchen, the fresh appliances set flush in their openings.
For the heart of your home.

Questions
about F12.

Can I clear F12 myself?
Locate the water supply valve behind the cabinet and confirm it is turned fully open. If it comes back, it needs a visit.
The water supply valve is open — why is F12 still showing on a new dish care machine?
ASKO's own manual also ties this alert to the water pressure being outside its required range, so a fully open valve on a low-pressure supply can still trigger it.
What minimum and maximum water pressure does ASKO require for its dish care machines?
ASKO's own documentation gives a range of roughly 4.2 to 140 psi (0.03 to 1.0 MPa); anything below that minimum can produce this alert even with the valve fully open.
Is F67 a different problem from F12?
ASKO documents F67 as closely related to F12, both tied to the water inlet and the pressure range, rather than as a separate category of alert.

Back to your everyday

Still showing F12?

A booking moves faster with three things: the message exactly as the display shows it, the model number from the carton or the rating plate, and the moment it first appeared. With those, the office can tell whether it is a setup step or a connection to put right, and send the part that fixes it.

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