AEG dishwasher confusing array of faults
Initial problem was leaking through the front door (caused by the dishwasher over-filling). Then we got the i11 error code but could switch off and restart. Then we got the i30 code and non-stop pumping even though the sump was more or less empty. Switching off an back on had no effect; but switching off for several days seemed to reset it.
Engineer came and replaced the pressure switch, ran a few tests, and left. First load we put on was back to leaking through front door and i11 (which resets after hard switch-off) - so same problem as before.
Appliance is about 18 months old and used every couple of days for normal household stuff. Filters and seals are clean and undamaged.
1 Answer
It sounds as if the i30 anti-flood system is being triggered by the original overfilling fault, and the pressure switch replacement may not have cured the actual cause. The key now is to work out why it is taking too much water or why the water level is not being sensed correctly.
1. Check for water in the base tray If i30 appears and it runs the drain pump constantly, there is often water in the bottom safety tray lifting a float switch. Pull it out, tilt only very carefully if needed, and look for signs of water underneath. If the tray is wet, the leak/overfill is still the primary fault.
2. Inspect the fill/level sensing system Even with a new pressure switch, the small pressure chamber and air tube connected to it can be partially blocked with grease or debris. That can stop the appliance sensing the correct water level and cause overfilling and door leaks.
3. Check the inlet valve is not sticking open A sticking fill valve can let in too much water. If the water level is clearly too high early in the wash, the inlet valve or its control may be suspect.
4. Check wash action inside Poor circulation can sometimes make it look like overfilling, with water being forced at the door. Make sure spray arms spin freely and are not split or blocked.
5. Go back to the engineer with the full symptom history As the same fault returned immediately after the repair, it suggests the diagnosis was incomplete rather than a one-off issue.
Isolate the dishwasher from the mains before removing panels or inspecting internal parts. For any mains electrical testing, please use a qualified appliance engineer.
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This answer was generated automatically by the WhitegoodsHelp AI Assistant. It is not provided by an engineer or any other qualified person, may be inaccurate or incomplete, and is not professional or technical advice. Do not rely on it. Always use your own judgement and consult a qualified engineer before carrying out any electrical, gas or water work. Use is entirely at your own risk. See our full Terms of Use.
SAFETY FIRST: READ BEFORE ACTING ON THIS GUIDANCE
Never work on a live appliance
Always unplug it at the mains before going near it with any tools.
Never attempt gas work
By law, gas appliances must only be worked on by a Gas Safe registered engineer. If your fault involves gas, stop and call a professional. Do not attempt it yourself.
Watch for sharp edges
Outer panels are smooth, but internal parts have sharp machined edges. Wear protective gloves and arm sleeves.
Water appliances can leak
Turn off the water supply before disconnecting any hoses.
Know your limits
If you are not confident testing or working inside the appliance, stop and call a professional.
AI guidance, not guaranteed
This response is generated automatically by the WhitegoodsHelp AI Assistant. It is not professional or technical advice, may be incomplete or wrong, and must not be relied upon. Always use your own judgement and consult a qualified engineer before any electrical, gas or water work.
This is general information only and is not professional advice. The WhitegoodsHelp AI Assistant is not an engineer and is not qualified. See our full Terms of Use.
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On point 2., the engineer cleaned out the tube connected to the pressure sensor and did not find and blockage.
That’s useful, thanks. If the pressure switch has been replaced and the sensing tube was cleaned, yet it still immediately overfills/leaks from the door, that makes the pressure-sensing side less likely and shifts suspicion more towards the water inlet being let in when it shouldn’t, or a blockage in the pressure chamber itself rather than just the tube.
The most telling question now is this: when it starts filling, does the water level look obviously too high before the wash motor really gets going? If yes, the inlet valve is a strong suspect. If the level seems normal but water is then thrown out of the door, the fault may be circulation-related or a distorted lower spray arm/spray pattern issue.
Because the same fault returned straight after the visit, I’d go back to the engineer and say:
- pressure switch already replaced - pressure tube already cleaned - fault unchanged - still overfilling/leaking from door - then i11, then i30/non-stop pump
Ask them specifically to check the inlet valve operation and the pressure chamber/sump housing for partial blockage or misreading. Those are the next decisive areas. If they confirm overfilling, the fill valve is one of the most likely remaining causes.
Please isolate it from the mains before any inspection, and use a qualified engineer for any internal electrical testing or dismantling.
WhitegoodsHelp AI Assistant
This answer was generated automatically by the WhitegoodsHelp AI Assistant. It is not provided by an engineer or any other qualified person, may be inaccurate or incomplete, and is not professional or technical advice. Do not rely on it. Always use your own judgement and consult a qualified engineer before carrying out any electrical, gas or water work. Use is entirely at your own risk. See our full Terms of Use.
SAFETY FIRST: READ BEFORE ACTING ON THIS GUIDANCE
Never work on a live appliance
Always unplug it at the mains before going near it with any tools.
Never attempt gas work
By law, gas appliances must only be worked on by a Gas Safe registered engineer. If your fault involves gas, stop and call a professional. Do not attempt it yourself.
Watch for sharp edges
Outer panels are smooth, but internal parts have sharp machined edges. Wear protective gloves and arm sleeves.
Water appliances can leak
Turn off the water supply before disconnecting any hoses.
Know your limits
If you are not confident testing or working inside the appliance, stop and call a professional.
AI guidance, not guaranteed
This response is generated automatically by the WhitegoodsHelp AI Assistant. It is not professional or technical advice, may be incomplete or wrong, and must not be relied upon. Always use your own judgement and consult a qualified engineer before any electrical, gas or water work.
This is general information only and is not professional advice. The WhitegoodsHelp AI Assistant is not an engineer and is not qualified. See our full Terms of Use.
Need Professional Help or Spare Parts?
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