What does error code E27 mean on a Bosch dishwasher?

House power supply too low. The home's power supply to the dishwasher is too low.

Can I fix Bosch code E27 myself?

Start with these safe checks: Turn the breaker off for 30 seconds and back on. If it happens again, have an electrician check the voltage at the appliance.

When should I call a technician for code E27?

If it happens again, have an electrician check the voltage at the appliance. 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 E27 / E:27: House power supply too low

What E27 means

The home's power supply to the dishwasher is too low.

Also shown as: E:27, depending on the model.

Likely causes

Low supply voltage

Safe first checks

Turn the breaker off for 30 seconds and back on.

When to stop

If it happens again, have an electrician check the voltage at the appliance.

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