AquaStop Plus leak protection
Every Thermador dishwasher includes AquaStop Plus — a multi-layer leak protection system. A sensor in the base pan detects water outside the wash tub and triggers an automatic shutoff and drain cycle. The supply hose includes a double-wall design with an electric shutoff valve at the tap connection. If the inner hose fails, the outer hose contains the water and the valve closes automatically.
Child lock
The child lock disables all control panel buttons to prevent accidental cycle changes or starts. Activation varies by model — typically press and hold a specific button combination for 3 seconds. The lock engages on the control panel only; it does not physically lock the door.
Door interlock
The wash cycle pauses immediately when the door is opened mid-cycle. The spray arms stop, the pump pauses, and the water level is maintained. Close the door to resume. This prevents hot water splashing and allows you to add a forgotten item.
Overflow protection
The float switch at the bottom of the tub monitors water level. If water exceeds the maximum level (E17 code), the inlet valve closes and the drain pump activates. This is separate from AquaStop — it protects against overfill from a stuck inlet valve.
Need professional Thermador Dishwasher service?
If troubleshooting doesn’t resolve the issue, our factory-certified Thermador technicians can help. We service all Thermador Dishwasher models across all 50 states with genuine OEM parts and a 30-day labor warranty. Schedule service online — same-day booking available.
Related Thermador resources
- Thermador Dishwasher repair service — certified technicians in all 50 states
- Thermador error code database — search all Dishwasher error codes
- Thermador model database — specifications and repair info by model number
- Thermador official site — official specifications, manuals, and product information
Important notes for Thermador dishwasher owners
- Always use genuine OEM parts — aftermarket components may fit but can compromise performance, safety, and warranty coverage on Thermador appliances
- Never ignore error codes — Thermador codes are diagnostic aids designed to prevent small issues from becoming major failures. Address them promptly
- Keep your owners manual accessible — it contains model-specific maintenance schedules and troubleshooting trees. Digital versions are available on the Thermador official site
- Document issues before calling — note error codes, symptoms, when they started, and patterns. This helps the technician diagnose faster
- Use surge protectors — power fluctuations damage electronic control boards. A quality surge protector protects your investment
When DIY troubleshooting is not enough
Some Thermador dishwasher issues can be resolved with the steps in this guide. However, call a certified technician immediately if you encounter:
- Gas smell (gas models) — turn off the appliance, open windows, leave the house, call from outside
- Burning smell or smoke — disconnect power immediately. Do not use until inspected
- Electrical sparking — turn off at the circuit breaker. Wiring or component failure
- Water leaking inside walls — shut off supply and call to prevent water damage
- Error codes that return after power reset — persistent codes indicate real component failure
- Sealed system issues — compressor, refrigerant work requires EPA-certified technicians
Schedule service online — our factory-certified Thermador technicians carry genuine OEM parts and serve all 50 states with a 30-day labor warranty.
