E:12 · Heating element blocked by limescale

Safe first steps

1. Check the water hardness setting on your dishwasher. Adjust it according to your local water hardness level to prevent future limescale buildup.
2. Purchase a suitable descaling agent specifically designed for dishwashers. Follow the instructions on the product for proper use.
3. Run a descaling cycle using the descaling agent. Ensure the dishwasher is empty during this process.
4. After descaling, check the heating element for any visible limescale residue. If it appears clean, run a short wash cycle to ensure proper operation.
5. If the error persists after descaling and cleaning, the heating element may be damaged. Do not use the dishwasher and arrange for a service visit.

When to stop

• Stop if you notice any unusual noises or smells during operation — risk of component damage or fire.