CDA dishwasher F2 error code
What F2 means on a CDA dishwasher
Drain fault.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
When a CDA dishwasher shows the F2 code, it is telling you there is a drain fault. In practice this usually means the machine is not draining, so you may find water left sitting in the bottom of the tub after a cycle.
Engineers sometimes find that the drain pump itself has failed, even when power is reaching it and nothing is blocking the way. In that situation the pump stops pushing the water out, and the dishwasher flags the problem with this code.
An engineer will typically check that the pump is getting power, look for any blockage in the pump and make sure the waste pipe is clear. If all of that is fine, the usual fix is to replace the drain pump and then test the machine to confirm it drains properly. A new pump often has to be ordered, so it may be fitted at a second visit. Engineers sometimes also supply a cleaning and descaling pack to help keep the machine in good order afterwards.
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
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