The short answer for Asko DFI
The Asko DFI family answers this differently from the brand as a whole: here blocked spray arm jets or an arm that cannot turn ranks ahead of the wash pump, its impeller or the diverter valve, because of how these models are built and how they are reached. Of the four causes ranked below, three are owner work and the remainder need a technician.
What you observe on these models
- A gritty film on glasses and the inside of cups — Food residue being redeposited rather than washed away, which points at the filter and the drain rather than the spray.
- Food debris redeposited on the upturned bases of cups — Classic filter-and-drain evidence: the machine is washing in water it has already used.
- NEAR MISS — water standing in the bottom at the end of the cycle — That is a drainage fault and it has its own page; dirty dishes are then a symptom of washing in old water.
Causes, most likely first on Asko DFI
- Blocked spray arm jets or an arm that cannot turn — Each jet is small enough to be closed by a seed or a shard of label, and a tall item in the rack stops the arm turning at all. Ranked here because both arms lift off by hand on most machines and clear with a pin and running water.
- A loaded filter and sump — Modern machines filter rather than grind. A filter left uncleaned recirculates the debris it caught, which is why the film appears on everything at once. It sits at this point because it is the single most common cause of poor cleaning on any machine built in the last couple of decades, and it is designed to be cleaned by the owner.
- Loading, overfilling and items that shadow each other — It earns this place because a single tall item blocking the upper arm ruins the whole upper rack while the lower rack comes out perfect.
- The wash pump, its impeller or the diverter valve — Low spray pressure on a machine whose filter, arms and water are all proven good — the pump is not developing pressure or the diverter is not sending it to the right arm. Placed at this point because it needs the machine pulled out and opened with the power isolated, so it is not owner work.
Check in this order, and why
- Spin each spray arm by hand and hold it up to the light — An arm that catches on the rack, or jets you cannot see through, has explained the pattern of what is coming out dirty.
- Lift the filter out of the sump and look at it — A filter with a mat of debris across it explains a film on everything, and it explains it before any part is suspected.
- Why this order and not another — It follows the ranking, not a generic checklist: on Asko DFI the first check separates blocked spray arm jets or an arm that cannot turn from a loaded filter and sump, and access decides the rest — what this family puts behind which panel is why the cheap check comes first.
Before anything comes apart
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Bail the sump with a cup and a sponge before you tilt or draw the machine out, or the remaining water goes under the cabinets where it cannot be dried.
Models in the DFI family
Reference| Model number | Family key |
|---|---|
| DFI563**** | asko:dishwasher:dfi |
| DFI564* | asko:dishwasher:dfi |
| DFI565* | asko:dishwasher:dfi |
| DFI652* | asko:dishwasher:dfi |
| DFI664* | asko:dishwasher:dfi |
| DFI675* | asko:dishwasher:dfi |
| DFI776* | asko:dishwasher:dfi |
| DFI786* | asko:dishwasher:dfi |
When to call a technician
The line is the sump. Everything above it — the filter, the arms, the racks, the detergent, the supply temperature — is owner work with the door open. Anything below it needs the machine unplumbed and drawn out from under the counter, and on a hard-wired built-in that starts at the breaker.
Other problems covered for Asko DFI
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
