AEG dishwasher I11 error code
What I11 means on an AEG dishwasher
Water fill or water level fault, often pressure switch or pressure chamber related.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On an AEG dishwasher, the I11 code points to a problem with filling with water or with sensing the water level. It is often linked to the pressure switch, the part that tells the machine how much water is inside, or to the small chamber that feeds it. You may notice the dishwasher not draining, beeping or flashing its lights, or stopping partway through a cycle.
Engineers sometimes find that the pressure chamber or the pressure switch has become blocked with debris, which stops the machine from reading the water level properly. They also sometimes find that the pressure switch itself has failed, so the dishwasher may keep filling, keep draining away its water, or only manage part of a cycle.
An engineer will usually run the dishwasher to see how it fills and drains, then clear out the pressure chamber and switch. If the switch still looks unreliable, they will normally replace it, then run a full cycle to check that the machine fills to the right level, washes and heats. A new pressure switch often has to be ordered and fitted at a second visit.
Written by our engineers from NAC's own jobs.
Faults this code turns up with
What our engineers found and fixed for each, from NAC's own repair records, with AEG's own figures where we have enough of them.
What we fixed. We'll add what our engineers found, the parts they fitted and what customers typically paid once enough of these repairs are confirmed. How we work out our figures.
Before you check anything yourself
- Switch the dishwasher off and unplug it, or turn it off at the isolator switch, before you touch anything. Our guide to safely isolating an appliance walks you through it.
- An error code tells you where to look, not that it's safe to take the dishwasher apart. Don't remove panels or covers to get at the parts it points to: that's an engineer's job.
- If it involves the mains supply, sealed parts, or you're not confident at any point, stop and book a qualified engineer rather than risk injury or further damage.
Rather leave it to us?
- Fixed-price quote before any work starts
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