What E15 Means
Thermador documents E15 as the safety switch detecting water in the base of the dishwasher.
Common Causes of E15
- A leak inside the unit reaching the base pan
- A door seal or hose connection failure
- A float-switch problem falsely reporting water (less common than an actual leak)
🔧 One Safe Check You Can Try
Turn off the water supply to the dishwasher and contact support — this is Thermador's own documented guidance for this exact code.
⚠ Why You Shouldn't Go Further Than That
- Running another cycle with water already detected in the base risks a larger leak reaching your flooring or cabinetry.
- Confirming the actual leak source requires opening the base of the unit, which should be done with the water supply already isolated.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.