E09Serious
Bosch Dishwasher E09 Error Code
The heating element is not functioning, so the dishwasher cannot heat water properly.
Common causes
- Open circuit in heating element
- Faulty NTC thermistor or wiring
- Control board failure
How to fix it
- Check continuity of the heating element with a multimeter (should be ~25-30 ohms).
- Inspect wiring harness to the element for damage or loose connections.
- Test the NTC thermistor resistance (should change with temperature).
⚠ When to call a pro: If the element is open or you suspect a board issue, call a professional.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.