Whirlpool dishwasher F15 error code
What F15 means on a Whirlpool dishwasher
Virtual sensor fault; the cycle stops part way through.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Whirlpool dishwasher, error code F15 means a virtual sensor fault, and when it appears the cycle stops part way through. You may notice the machine beeping or its lights flashing, and it may halt mid cycle, sometimes about halfway through and sometimes nearer the end, depending on the programme.
What engineers sometimes find behind this code is a worn wash pump, where the shaft inside has worn and become loose and wobbly. Now and then the heater is found to need replacing along with the pump.
An engineer will usually check the wash pump, looking at how firmly its shaft sits and testing it, and will look at the heater too. The usual repair is to fit a new wash pump, together with a new heater where that is also at fault, and then run a full cycle to make sure the machine fills and finishes properly. Engineers sometimes also supply a cleaning and descaling treatment. Because the pump often has to be ordered, the repair is often completed at a second visit once the part has arrived.
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
- UK-wide engineer coverage