Neff dishwasher E24 error code
What E24 means on a Neff dishwasher
Drain fault: drain blocked or pump not working.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Neff dishwasher, the E24 code points to a drain fault. It means the water is not getting away as it should, either because the drain is blocked or because the pump that empties the machine is not working. You may notice the dishwasher not draining, beeping or flashing lights, the cycle stopping part way through, or the pump running on and on as if it is trying to empty.
Engineers sometimes find that the drain pump itself has worn out, even when there is nothing blocking it. A failing pump can sound noisy, rattle or groan, drain slowly, or work some of the time and then let the code come back. Now and then the machine drains perfectly well while the engineer is there, which can make an intermittent fault harder to pin down.
An engineer will usually check the pump area for any blockage, listen to the pump as it runs and put the dishwasher through a cycle to see how well it fills and drains. Where the pump is at fault, the usual repair is to fit a new drain pump and then run a test wash. The new pump often has to be ordered first 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 Neff'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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