Dishwasher — symptoms, diagnosis and maintenance
A dishwasher depends on correct inlet, drainage, filters, spray arms and sealing. User-accessible blockages should be ruled out first.
Safety rule: stop when there is smoke, sparking, a burning smell, electric-shock signs, an active leak, cracked hob glass or suspected gas. Disconnect only when it is safe to do so.
Common symptoms
Dishwasher not filling
The machine makes some sounds, but the wash cycle does not begin normally.
Symptom diagnosisDishwasher not draining
A significant amount of dirty water remains at the bottom after the cycle.
Symptom diagnosisDishwasher leaking
Water appears at the front, around the door or beneath the cabinet.
Symptom diagnosisWhat to check before reporting
- Filter assembly and sump area
- Inlet valve position and hose kinks
- Door seal and levelling
Maintenance
Clean filters, spray arms and seals monthly.
Use the frequency stated in the specific model manual. Heavy use may require more frequent maintenance.
Add a planner date →How to approach dishwasher diagnosis
- Record the full model and error code.
- Identify the cycle stage or condition when it occurs.
- Check only items the manual identifies as user-accessible.
- Do not restart after a hazard signal.
- Prepare the description and previous costs before a repair decision.