What does error code E04 mean on a Bosch dishwasher?

Heater electronics fault (self-test). The dishwasher found faulty heater electronics in its self-test.

Can I fix Bosch code E04 myself?

Start with these safe checks: Note the code. Bosch says contact Bosch Customer Support.

When should I call a technician for code E04?

Bosch says 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

Bosch dishwasher code E04 / E:04: Heater electronics fault (self-test)

Bosch dishwashers

What E04 means

The dishwasher found faulty heater electronics in its self-test.

Also shown as: E:04, depending on the model.

Likely causes

Heater electronics fault

Safe first checks

Note the code.

When to stop

Bosch says 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.