Bosch · Dishwasher
E03
Power reset onlyerror code
Bosch E03 means the dishwasher main control board has a relay fault.
Market, product family, and model applicability
US · en-US · Bosch dishwashers covered by the cited official US error-code index
product family applicable: The official source applies at the product-family level. Exact controls can still vary by model.
Check the official model/manual lookup (opens in a new tab)What you can do now
Use the documented 30-second power reset.
- Reset dishwasher power at the breaker for 30 seconds.
Stop and get service when
Contact Bosch support if E03 remains.
- Contact Bosch support if E03 remains.
Do not do
Do not access the control board, panels, or wiring.
Use only the supported reset.
If the message returns
If E03 remains, contact Bosch support.
Source and scope
Official manufacturer source- Market and locale
- US · en-US
- Product family
- Bosch dishwashers
- Official source last checked
- July 26, 2026
- Review status
- Automated evidence review completed · Owner-delegated approval
Bosch
Bosch Dishwasher Error Codes · Official error-code index
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