Drain-system checks

Drain-system checks for error E09

Drain-system checks can help narrow the context of Bosch E09, but this page does not claim that the named system is the failed component. Begin with the manufacturer meaning — An internal heat-pump heater fault was detected. — then complete only accessible checks: Turn off the dishwasher.; Reset power at the breaker for 30 seconds.; If E09 returns, stop use and contact Bosch support..

Safe sequence

1. 1Turn off the dishwasher.
2. 2Reset power at the breaker for 30 seconds.
3. 3If E09 returns, stop use and contact Bosch support.