Error code reference

Bosch Dishwasher Error Code E:11

NTC1 to NTC2 internal check failed; functional safety error (NTC or NTC wiring harness error).

NTC1 to NTC2 internal check failed; functional safety error (NTC or NTC wiring harness error).

First step from the service manual

Check continuity between NTC and power module harness connector. Measure NTC resistance (~10kΩ between terminals 1-2 & 2-3 and ~20kΩ between terminals 1-3 at room temp). If out of range replace heat pump, if in range replace power module.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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