The Bosch Dishwasher code E01 means: Heat pump motor circuit fault at the main control board. The control board has detected a problem in the circuit that drives the heating/heat pump motor.
Difficulty: Major job — consider a pro or replacement
Typical repair cost: approximately $300 (parts + labor).
What to do, step by step
- Reset power at the breaker for 30 seconds and restart the cycle
- Inspect the wiring between the heat pump motor and the control board
- Test the heat pump motor windings for continuity
- If the fault returns, the main control board or heat pump needs Bosch service

Video walkthrough
Is the repair worth it?
Before spending money, run the numbers: if the repair quote is more than about 30% of what a new dishwasher costs — especially on an older unit — replacement is usually the smarter call.
Check your quote with our free calculator →
Other Bosch error codes
Decoding a different code? Our error code lookup tool covers 200+ codes across all major brands.
Safety first: unplug the appliance (and shut off gas where applicable) before any inspection. If you smell gas, leave the area and call your gas provider.