Bosch Cooktop E9000 / E9010: Supply Voltage Is Outside Its Range

What E9000 means

The cooktop will not heat and shows E9000 or E9010 as soon as it is switched on. Its electronics measure the voltage arriving at the terminals, and what they see falls outside the range the appliance is built to accept. Rather than risk the burners and the control board, it locks out. The cause usually lies in the house wiring or the breaker feeding the cooktop, not in the cooktop itself.

Common causes of E9000

Wrong breaker size or circuit wiring for the voltage the cooktop requires
Loose or burned connection in the junction box feeding the unit
Supply irregularity in the home, such as a failing leg of the service or a problem after an outage

✓ One safe check you can try

There is no safe homeowner check. 1. Switch the cooktop off at its breaker. 2. Leave it off and do not reset the breaker repeatedly. 3. Write down when the code first showed, and whether the lights flickered or power dropped beforehand. 4. Have a licensed electrician inspect the circuit, then call us if the code remains.

! Why to stop there

Opening a junction box means working near live conductors, which is a serious shock and fire hazard.
Repeatedly switching a breaker on an unsafe supply can damage the cooktop board that is otherwise fine.
Replacing cooktop parts will not help if the voltage itself is wrong, so the money is spent in the wrong place.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Cooktop codes

E1Bosch Cooktop E1: Overheating Warning, or a Weak Temperature Sensor E9010Bosch Cooktop E9010: Wiring Does Not Match the Connection Diagram dEBosch Cooktop dE: Showroom Demo Mode Is Still Switched On E7010Bosch Cooktop E7010: The Home Connect Link Has Dropped E7015Bosch Cooktop E7015: Electronics Ran Too Hot

E9000E9000 questions

Should I call an electrician or you first?

Start with the electrician if the lights flicker or other outlets act oddly, since that points at the house supply. If the supply tests normal, call us and we will look at the cooktop.

Can a power outage trigger this code?

It can, when the supply comes back unevenly after an outage or surge. Houston storm season makes this more common. Leave the cooktop off, have the circuit checked, and then call us if the code persists.

Will the warranty cover this?

Coverage depends on your purchase date and terms, and many manufacturers exclude problems caused by the home wiring. Check your paperwork. Our own repairs carry a 30-day workmanship warranty and a written price comes first.