What F67 Means
WHICH MACHINE THIS APPLIES TO: the Asko professional dishwasher DWC6432, in its DWC6432BIXXLSU and DWC6432BIXXLS forms, together with the DWC6433BIXXLS, whose manual prints the identical thirteen-code table. Three separate Asko documents carry that table and they agree with each other character for character. It belongs to Asko's professional line and it is grouped here with the rest of that line.
WHY A DOMESTIC ASKO DISHWASHER PAGE IS THE WRONG PAGE FOR THIS MACHINE: most of these numbers exist on the domestic machines too, and several of them carry different instructions there. The plainest example is the water pressure specification - the professional manual requires between 15 and 140 psi, which is 0.1 to 1.0 MPa, and the domestic books print a different and much lower minimum. The professional machine also has three codes that no domestic Asko dishwasher has, and it does not have one that several domestic machines do. Read the professional table for a professional machine.
WHAT F67 MEANS ON THIS MACHINE: the error table gives the message as "Water inlet fault 2", with the same action as the machine's other inlet code - check that the water supply valve is on, and observe the pressure requirement of 15 to 140 psi, which is 0.1 to 1.0 MPa.
WHY THERE ARE TWO INLET CODES: because the machine distinguishes two ways of failing to get the water it asked for, and Asko numbers them separately. What the manual does not do is explain how they differ, and nothing here will invent a distinction the manufacturer has not printed. What it does mean in practice is that the checks are the same for both and that which number appeared is worth recording for the technician.
THE PRESSURE FIGURE AGAIN, BECAUSE IT IS THE MOST MISUSED NUMBER ON THIS TABLE: 15 psi is the professional minimum. The domestic Asko dishwashers specify far less, and a supply that would satisfy a household machine can leave a professional one unable to fill. If somebody has checked your pressure against a domestic figure, that check does not apply to this machine.
WHAT THE MACHINE WAS DOING: filling, and giving up. It stops rather than washing a commercial load in too little water, which in a kitchen is the right decision.
WHERE TO LOOK FIRST IN A COMMERCIAL KITCHEN: at everything else on the same supply. A dishwasher that fails only during service and fills perfectly at quiet times is describing the kitchen's plumbing rather than its own fault.
CLASSIFICATION: fault, with the documented first checks outside the machine.
Common Causes of F67
- Supply valve closed or partly closed somewhere in the run
- Supply pressure below the machine's 15 psi minimum, often only during busy periods
- Inlet hose kinked or crushed behind the appliance
- Strainer blocked with scale or grit on a hard or untreated supply
- Inlet valve or flow measurement inside the machine faulty
🔧 One Safe Check You Can Try
Check the supply valve to the machine is fully open, and check that no other valve in the run has been closed during work in the kitchen - on a commercial fit-out there are usually several, and one of them being shut after a repair is a common and entirely undramatic explanation. Then look at the pressure in the way that actually answers the question: find out what else draws on the same supply, and note whether the fault happens only at busy times. If it does, the machine is reporting a kitchen problem. Look along the inlet hose behind the appliance for a kink or a crush point from the machine being pushed back into its housing. If the installation has a strainer at the machine inlet, close the supply valve first and let the pressure off before anything is unscrewed, with a tray and cloths ready because the hose holds water. Record which of the two inlet codes appeared, because although the checks are the same, the number is information a technician can use. Beyond the valve, the hose and the strainer, everything on this fault is inside the machine.
⚠ Why You Shouldn't Go Further Than That
- The supply valve is closed and the pressure released before any fitting is opened, because the hose holds water and a commercial supply can be at higher pressure than expected.
- The inlet valve and the flow measurement are inside a built-in machine that has to be isolated and drawn out with its plumbing attached.
- Changes to the kitchen's water supply affect every machine on it and belong to whoever maintains the installation.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.