Bosch dishwasher E24 error code
What E24 means on a Bosch dishwasher
Drain fault: the appliance cannot empty.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Bosch dishwasher, the E24 code means there is a drain fault: the dishwasher cannot empty. You may find water left standing inside or in the base, and the machine may beep or flash its lights.
Engineers sometimes find a blockage in the waste hose, often near where it joins the plumbing under the sink. Sometimes food or debris, such as shell or broken glass, is stuck under the filter or jammed in the drain pump. Sometimes a clip in the pump area has not been pushed fully back into place. At other times the drain pump itself has failed.
An engineer will usually test the dishwasher, then check the filter, the drain pump and the waste hose for anything blocking them. Clearing a blockage or refitting a loose clip often puts it right on the spot. If the drain pump has failed, it is replaced, and a new pump often has to be ordered and fitted at a return 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 Bosch'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
- Same or next-day visits where available
- UK-wide engineer coverage