Bosch Dishwashers error code
Heat-pump motor circuit fault
Bosch identifies E01 as a heat-pump motor circuit fault at the main control board.
Direct answer
E01 at a glance
- Meaning
- Heat-pump motor circuit fault
- Urgency
- Service recommended
- First safe check
- Switch the dishwasher off.
- Model note
- Confirm the code and access instructions in the manual for your exact model.
Likely causes
Why E01 appears
- 01Temporary control fault
- 02Heat-pump circuit fault
- 03Main control board fault
Safe diagnostic path
What to check, in order
- 01
Switch the dishwasher off.
- 02
Reset power at the breaker for 30 seconds.
- 03
Restore power and retry once.
- 04
Contact Bosch support if E01 returns.
Know when to stop
Don’t push past this point
Do not open the control enclosure. Arrange service if the code returns.
Primary source
How this page was checked
The code meaning and manufacturer-specific guidance were checked against the linked support material on August 28, 2026. Confirm details against the manual for your exact model before removing panels or parts.
Read Bosch US: dishwasher error codes ↗Common follow-up questions
About Bosch code E01
What does E01 mean on a Bosch dishwashers?
E01 means “Heat-pump motor circuit fault.” Bosch identifies E01 as a heat-pump motor circuit fault at the main control board.
Can I clear E01 by resetting the appliance?
A reset may clear a temporary alert, but it does not correct the underlying condition. Start with the safe checks above and stop if the code returns. Do not open the control enclosure. Arrange service if the code returns.
Does E01 mean the same thing on every Bosch model?
Not necessarily. Display codes can vary by model and product family, so confirm the meaning and access instructions in the manual for your exact model before removing covers or parts.
When should I stop troubleshooting E01?
Do not open the control enclosure. Arrange service if the code returns.