What F70 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 F70 MEANS ON THIS MACHINE: the error table gives the message as "Lock fault", and the action is to close the dishwasher door, and if the problem persists to contact your nearest service centre.
WHY THE ACTION IS SO ORDINARY FOR A CODE THAT SOUNDS SERIOUS: because the first thing Asko asks you to do is close the door. That is a genuine instruction rather than a formality - on a machine in a working kitchen, a door that is against its frame but not latched is the everyday version of this fault, and the code is often cleared by closing it properly.
WHERE THIS CODE EXISTS: on the professional machines only. It is not in the domestic Asko dishwasher tables, and no repair site publishes it, because those sites work from the household manuals. Finding nothing about F70 online is what you would expect rather than a sign that something is wrong.
WHY A DISHWASHER HAS A LOCK AT ALL ON THIS LINE: a professional machine runs hotter than a household one and is opened by people moving quickly. The door arrangement is what keeps the cycle and the water where they belong until the machine has finished with them.
WHEN IT STOPS BEING AN EVERYDAY MATTER: when the door is genuinely closed, the seal is clear and the code persists. At that point it is the latch, the striker or the lock device rather than the door, and the manual's second instruction applies.
CLASSIFICATION: usually a closing prompt, occasionally a fault. The published first action is a door, not a telephone.
Common Causes of F70
- Door not pushed fully to its latched position
- Rack, tray handle or utensil in the path of the door or the latch
- Grease or detergent residue on the latch tongue or in the striker recess
- Machine knocked or settled in its housing so the door no longer meets the frame squarely
- Lock device, its wiring or the control unit faulty
🔧 One Safe Check You Can Try
Open the door fully and look before closing it again, because the usual cause is something you cannot see with the door pushed to: a tray handle, a long utensil, a rack pushed out of position or a corner of a cloth sitting in the path of the latch. Clear the opening, push the racks fully home, and close the door with one firm deliberate movement to its final position rather than a swing. Check the latch tongue and the recess it enters for grease and detergent residue, which build up faster in a commercial kitchen than anywhere else, and wipe both with a damp cloth with the machine switched off and cool. Look at whether the machine has been knocked by a trolley or has settled in its housing so the door no longer meets the frame squarely. If F70 stands with a clear opening and a properly closing door, report it and say what you checked - Asko's own second instruction is to contact service. Do not wedge, tape or hold the door to get a cycle through service, and do not force a door that is resisting, because a latch that is out of alignment is damaged by exactly that.
⚠ Why You Shouldn't Go Further Than That
- None for the checks above - clearing the opening, wiping the latch and closing the door properly is ordinary use, and the manufacturer's first action is exactly that.
- A door is not wedged, taped or held to get a cycle through a busy service, because the lock is what keeps a hot machine closed until it has finished.
- If the code stands with a clean, clear, properly closed door, the lock device and its wiring sit behind the front of a built-in machine that is isolated before it is opened.
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.