Error code reference

Bosch Dishwasher Error Code E:03

Internal fault on power module; multiple possible causes including electrical connection to pumps interrupted, voltage drops from bad mains connection, or power module defect.

SourceDishwasher - Service Manual: Failure Storage & Customer Service ProgramSheet 2 of 3

Bosch codes Bosch dishwasher codes

Diagnostic procedure

The full E:03 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check wire/connectors at pumps and power module; check connection of the main connecting at appliance back side and socket-outlet; start test program and if E:01 occurs again, replace power module.

SourceDishwasher - Service Manual: Failure Storage & Customer Service ProgramSheet 2 of 3

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

10 manuals in the MyPros+ library document this code for Bosch dishwasher.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full E:03 procedure

Where this code is documented

Models covered by the manuals that document this code

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