Bosch Dishwasher · Code E27 / E9001

Bosch Dishwasher E27 code: Low supply voltage

The house power reaching the dishwasher is too low for it to run properly.

Most common causes

  1. Low or unstable voltage on the circuit
  2. Loose connection in the dishwasher's power supply
  3. Other heavy loads on the same circuit

What you can safely check yourself

  1. Turn off the dishwasher's breaker for 30 seconds, then restore power.

Unplug the appliance before moving or cleaning anything. Do not open panels, touch gas connections or bypass safety switches.

Checked against: bosch-home.com. Meanings can vary by model; check your owner’s manual.

Quick answers

What does E27 mean on a Bosch Dishwasher?

The house power reaching the dishwasher is too low for it to run properly.

Can I clear the E27 code myself?

Try these first: Turn off the dishwasher's breaker for 30 seconds, then restore power. If E27 comes back, have an electrician check the voltage at the dishwasher's circuit.

How much does it cost to fix a E27 code?

It depends on the cause. At FixPro the diagnostic visit is $79.00 and is credited in full to the repair; you get a flat-rate quote before any work starts.

Other Bosch Dishwasher codes

E09 · Heater faultE15 · Water in the base (leak protection)E22 · Filter blockedE24 · Not drainingE25 · Drain pump blockedE01 · Heat pump motor circuit faultE14 · Flow meter or fill problemE17 · Water inlet problemE18 · Not enough waterE21 · Circulation (heat) pump blockedE23 · Drain pump fault

Still showing the code?

A FixPro technician will find the cause and give you a flat price. $79.00 diagnostic, credited toward the repair.

Book a repair →