Dishwasher not cleaning dishes?
Cloudy glasses, food left on plates, or detergent still in the dispenser can each point to a different issue. Loading, programme choice, water flow, and filter condition are useful first checks before assuming a part has failed.
Common clues
- Blocked filter or spray-arm jets
Food debris can reduce circulation, while mineral deposits can restrict small spray openings. Clean only removable parts using the method in the appliance manual.
- Poor loading or blocked spray arms
Tall pans, utensils, or a crowded rack can stop a spray arm from turning or shield dishes from water. The rack layout can affect one shelf more than another.
- Detergent, water, or heating issue
Old detergent, a short programme, hard-water residue, low water flow, or a heating fault can leave a film. An appliance that never warms may need professional diagnosis.
Useful checks before calling
- 1Check the programme
Confirm the selected cycle suits the load and check that delay-start or a quick wash has not been selected by mistake.
- 2Rearrange one load
Leave space between dishes, keep tall items clear of the spray arms, and check that each arm can rotate freely by hand while the machine is off.
- 3Clean user-removable parts
Rinse the filter and spray arms only if the manual explains how to remove them. Do not poke sharp tools into jets or reach into the pump.
- 4Compare the results
Run a suitable cycle with fresh detergent and note whether the problem affects every rack or only certain items. Stop if the machine leaks or smells burnt.
Do not reach into the pump or use sharp tools on spray jets. If water is not heating, the appliance trips power, or there is a burning smell, stop and call a professional.
When to contact a repairer
Arrange an inspection if cleaning stays poor after correct loading and filter care, the spray arms do not turn, or the machine never heats or fills correctly. Repeatedly using extra detergent can worsen residue.
Useful details to have ready
- Which items or rack areas remain dirty
- Programme, detergent, and any displayed error code
- Whether the filter and spray arms are clear according to the manual
Common questions
Why is detergent left in the dispenser?
A blocked dispenser door, damp or old detergent, or an item blocking the door can leave detergent behind. Check loading and clean only the removable dispenser parts described in the manual.
Should I use more detergent to improve cleaning?
Not automatically. Excess detergent can leave residue and does not fix blocked circulation or a heating problem. Follow the detergent label and appliance manual for the correct amount.
Post the repair job for local workers to review.
Share the job details and postcode area to invite offers. You can still post if no matching repairers are listed, but a quote is not guaranteed.