Grundig dishwasher E01 error code
What E01 means on a Grundig dishwasher
Drain fault.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Grundig dishwasher, the E01 code means there is a drain fault. You may notice the machine beeping or its lights flashing, and water left sitting inside because it is not draining away as it should.
Engineers sometimes find a small object, such as a piece of plastic, caught in the drain pump and stopping it from pumping the water out. They also sometimes find dirty water collected in the base of the machine underneath the main tub, where it has leaked from somewhere and gathered.
An engineer will usually check the drain pump first and clear out anything that is blocking it, then run the dishwasher to make sure it drains properly. Where water has gathered in the base, they remove it, check that the spray arms and door seals are in good condition, and run the machine while watching closely for any leaks. Once the dishwasher has been tested and is working correctly, the repair is complete.
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.
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
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