Common Dishwasher Faults
I repair a wide range of common dishwasher problems, from simple faults to more involved electrical, control and heating issues.
Common Dishwasher Faults Repaired
| Dishwasher Fault | Possible Causes |
|---|---|
| Not draining | Blocked filter, blocked sump, blocked drain hose, faulty drain pump, blocked sink spigot, kinked waste hose |
| Water left in the bottom | Dirty filters, partial blockage, weak drain pump, non-return valve stuck, waste pipe restriction |
| Leaking from underneath | Split hose, loose hose clamp, leaking pump seal, cracked sump, faulty circulation pump seal, overfilling |
| Leaking from the door | Dirty door seal, damaged door gasket, spray arm hitting door, overloading, machine not level, too much foam |
| Not filling with water | Water supply turned off, kinked inlet hose, blocked inlet filter, faulty inlet valve, float switch activated, wiring fault |
| Overfilling | Faulty inlet valve, pressure sensor fault, blocked pressure chamber, float switch fault, control board fault |
| Not cleaning properly | Blocked spray arms, dirty filters, poor water pressure, weak circulation pump, wrong detergent, overloading |
| Dishes still wet | No rinse aid, faulty heating element, faulty thermostat/NTC sensor, poor drying fan, eco cycle limitations |
| Not heating water | Failed heater, faulty thermostat/NTC, wiring fault, relay/control board fault, pressure switch issue |
| Tripping electrics | Heater leaking to earth, damaged wiring, faulty motor, water leak onto electrics, faulty mains filter |
| No power | Blown fuse, faulty socket, damaged cable, failed power module, faulty on/off switch |
| Stops mid-cycle | Heating fault, drain fault, water fill issue, circulation pump fault, door latch problem, PCB/control fault |
| Error code showing | Drainage fault, water inlet fault, heating fault, anti-flood fault, sensor fault, control board issue |
| Noisy in use | Debris in pump, worn circulation pump, spray arm catching, loose item inside, worn motor bearings |
| Bad smell | Dirty filters, food debris in sump, blocked drain hose, standing water, low-temperature washes, grease build-up |
| White marks on dishes | Hard water, low salt, incorrect salt setting, poor rinse aid level, too much detergent |
| Cloudy glasses | Hard water scale, detergent etching, poor rinse aid, incorrect wash programme |
| Tablet not dissolving | Blocked dispenser, low water temperature, spray arm not turning, poor water fill, tablet trapped by dishes |
| Door not closing | Door latch fault, basket obstruction, hinge issue, damaged seal, machine not level |
| Spray arms not spinning | Blocked jets, poor water pressure, circulation pump weakness, spray arm obstructed by dishes |
| Water leaking from front | Door seal fault, excess foam, spray arm directing water at door, overloading, machine tilted forward |