What to do
- Clean the sensor
It can simply be dirty, and clean up fine.
When to call an engineer
If cleaning doesn't clear the code, the sensor needs replacing.
Quick answers
What does the E2 error code mean on a dishwasher?
A faulty temperature sensor: the dishwasher can't tell how hot the water is.
Can I fix E2 on a dishwasher myself?
Moderate (panels off to replace). Start with: clean the sensor. If cleaning doesn't clear the code, the sensor needs replacing.
Is E2 on a dishwasher worth repairing?
Worth fixing. It's a small part, and the rest of the machine is unaffected.
About this code
Unbranded and less common appliances don't publish one shared code list, so this page gives the most common meaning across makers. Your manual is the final word, and the model number that finds it is on a label on the edge of the door or the side of the tub.
Last reviewed October 2026.