Error code reference

Bosch Dishwasher Error Code E:30

Dishwasher shuts off; error code won't show during wash cycle

Dishwasher shuts off; error code won't show during wash cycle. Caused by high supply voltage.

First step from the service manual

Run test program to check error codes. Check house wiring connections - make sure supply voltage is ≈ 98–120 VAC to 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
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