Water in the Base of a Thermador Dishwasher: E15 and E3100

What Thermador says to do

Thermador’s guidance for E15 and E3100 is plain: shut the water supply off and get in touch with service. With either code, a protective switch sensed moisture collecting at the bottom of the machine, where it has no business being. Running more cycles risks a larger leak and does nothing to cure the cause underneath.

What to do right now

1. Stop the dishwasher and close the water supply valve.
2. Switch off power at the breaker if the floor around it is wet.
3. Soak up any water you can see on the floor.
4. Leave the door closed and avoid starting another cycle.
5. Call us with the code and what you noticed.

Why this one is different

Most dishwasher messages invite a little testing of your own. This is among the few Thermador codes we would call a stop-and-call situation. The safety switch is behaving exactly as designed, so the right response is to cut off the supply, not to reset the machine and try again.

What we look for

A technician traces where the water is coming from, whether a hose, a seal, a connection, or something inside the tub, then dries out the base and confirms the switch is reading correctly before the dishwasher runs again. Details on both codes are at E15 and E3100, and our dishwasher repair page lists related services.

Take care walking near the dishwasher if water has reached the floor, and keep towels handy. If the cabinet beside it looks damp, mention that as well, since it tells us how long the water may have been escaping.

Contact us once the water is off. A written price comes before work, and the repair is protected by our 30-day workmanship warranty.