What does error code E09 mean on a Bosch dishwasher?

Heater fault (circulation pump). A fault with the heater inside the circulation (heat) pump.

Can I fix Bosch code E09 myself?

Start with these safe checks: Turn the dishwasher's breaker off for 30 seconds and back on. If not resolved, contact Bosch Customer Support.

When should I call a technician for code E09?

If not resolved, contact Bosch Customer Support. Unplug it or switch the breaker off before you remove any panel. Don't test or replace wiring, control boards, heating elements or motors under power. If you see scorching, smell burning, or the breaker trips again, leave it off and call a qualified appliance technician or electrician.

Bosch Dishwasher Error Code E09 / E:09: Heater fault (circulation…

What E09 means

A fault with the heater inside the circulation (heat) pump.

Also shown as: E:09, depending on the model.

Likely causes

Heater or pump fault

Safe first checks

Turn the dishwasher's breaker off for 30 seconds and back on.

When to stop

If not resolved, contact Bosch Customer Support.

Checked against: Bosch USA: Bosch dishwasher error codes troubleshooting guide. Codes can differ by model and year, so confirm with your owner's manual.