What to check, in order
- Switch off and on
That resets it.
- Watch the next wash
If the code comes back, stop using the machine.
When to call an engineer
If it comes back. A heater switching on when it shouldn't is a safety issue.
A repair visit will usually check the heating element, its temperature sensor and the wiring back to the control board.
Before you book
- Note the model and serial number. They're on a label inside the door, around the door frame or on the back.
- Write down the exact code, and what the appliance was doing when it appeared.
- Check whether it's still under warranty. If it is, the repair may cost you nothing.
Checked against
Last reviewed September 2026. Manufacturers update their pages, and your manual is the final word.