Dishwasher problems and error codes
Start from what your dishwasher is doing, or look up the code on its display. Every page puts the stop signs first, then the checks you can safely do yourself.
Common dishwasher problems
- Dishwasher not drainingWater left in the bottom of a dishwasher is usually caused by blocked filters, a clogged sink…
- Dishwasher not startingA dishwasher with power that won’t start usually has a door that isn’t fully latched, the…
- Dishwasher not cleaning properlyWhen dishes come out dirty, check whether the tablet dissolved. If it didn’t, an item may be…
- Dishwasher leakingTurn the water off first. Dishwasher leaks are often caused by foam from the wrong detergent…
- Dishwasher not drying dishesWet dishes are often a loading or rinse-aid issue rather than a fault. Leave space between…
- Dishwasher smells badA smelly dishwasher usually has food trapped in the filter, a drain that isn’t clearing…
- Dishwasher not filling with waterIf little or no water enters your dishwasher, check the tap is fully open and other taps are…
- Dishwasher tablet not dissolvingA tablet left in the dispenser usually means something blocked the detergent lid from…
- Dishwasher leaving glasses cloudyCloudy film on glasses is usually limescale from hard water, not an appliance fault. Keep the…
- Dishwasher making a noiseHumming as it fills, spraying sounds, a pump hum while draining and clicks from the detergent…
Stop first: safety problems
Dishwasher error codes by brand
All error codes A–Z- AEG 3 codes: i10, i20, i30
- Bosch 3 codes: E09, E15, E24
- Miele 1 code: F11
- Samsung 4 codes: 4C, 5C, HC, LC
We only list codes we’ve checked against manufacturer guidance. If your brand or code isn’t here, check your manual or the manufacturer’s UK support site, or start from the symptom above.