What F68 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 F68 MEANS ON THIS MACHINE: the error table gives the message as "BLDC drain pump fault", and its action refers you to the manual's section on water remaining in the dishwasher above the filters - the drain checks.
WHAT BLDC MEANS, SINCE THE CODE PUTS IT IN FRONT OF YOU: it is the type of motor in the drain pump. What matters for the reader is simply that this code names the drain pump specifically, rather than the drain path in general, and that Asko still sends you to the same practical checks - because a pump that is obstructed and a pump that has failed look identical from the front of the machine.
HOW IT SITS ALONGSIDE THE OTHER DRAIN CODES: F11, the water outlet fault, is the same family of checks, and F10 sends you to unblock the drain pump. Three numbers touch the drain side of this machine and their instructions overlap. If more than one has appeared, record them all and the order they came in.
WHAT A COMMERCIAL KITCHEN PUTS INTO A DRAIN PUMP: cocktail sticks, foil, cling film, seeds, bones, cutlery and pieces of crockery. A domestic machine meets those occasionally. A professional machine meets them every service, which is why the drain side is the part of this appliance that needs the most disciplined routine.
CLASSIFICATION: fault, with documented owner checks in front of it and a service call behind them.
Common Causes of F68
- Drain pump obstructed by debris, foil or a hard object
- Filters and filter area blocked so debris reaches the pump
- Drain hose kinked, crushed or blocked
- Shared waste run or grease trap restricted
- Drain pump or its wiring faulty after long commercial service
🔧 One Safe Check You Can Try
Switch the machine off at its breaker or isolator and let the water cool - a commercial cycle leaves water hot enough to scald, and the drain area is where that water sits. Then work through the same checks the manual points to for water remaining above the filters. Lift out the coarse and fine filters, clean them through and look into the filter area beneath with a torch for foil, film and small hard objects. Check the drain hose along its run behind the machine for kinks and crush points, and check where it joins the kitchen waste, since a shared run blocks at the shared end and takes several machines with it. If your kitchen has a grease trap, have it checked. Refit the filters properly and seated, then run a programme and see whether the machine drains. If it does not, stop there and report the code exactly as it appeared: past the filter area the pump body sits behind the base panel of a built-in appliance, and getting to it means unfastening the machine and drawing it out with the plumbing attached.
⚠ Why You Shouldn't Go Further Than That
- The machine is isolated and the water left to cool before the filters are removed, because the drain area holds the hottest water in the machine.
- The drain pump body is behind the base panel of a built-in appliance and is reached only by unfastening it and drawing it out with its plumbing connected.
- A shared kitchen waste run belongs to whoever maintains the installation, since clearing it affects every machine on the line.
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.