Thermador Induction Range Cooktop E9000 / E9010: Supply Voltage Out of Range

What E9000 / E9010 means

The induction cooktop side of Thermador Pro Harmony PRD...WIGU, PRI and Masterpiece MRI304DL ranges shows E9000 or E9010 when the supply voltage is incorrect, outside the normal operating range. The manufacturer lists the two numbers as one entry. The cooktop should not be run until the voltage is confirmed, and other Thermador generations use these codes differently.

Usual causes of E9000 / E9010

Supply voltage outside the normal operating range

✓ A safe check worth trying

1. Switch the cooktop off. 2. Notice whether lights or other appliances on the same circuit are misbehaving. 3. Turn the range breaker off and back on once. 4. If the code returns, stop using the cooktop and call us; checking the feed is not an owner task.

! Why you should stop here

Measuring the range feed is electrician-level work.
Wrong voltage can harm induction electronics.
We write the quote before any work.

Taking off a panel yourself does not by default void a manufacturer warranty, yet it can lead to accidental damage, and some manufacturers attach their own service terms. Read your warranty paperwork, or ask us, before you decide.

→Same appliance

More Range codes

E3E3 on an Older Thermador Pro-Harmony Range (Light Code 10): Open Oven Sensor F7Legacy Thermador ESC30/GSC30 Range F7: Stuck or Shorted Function Key E4Thermador Pro-Harmony Range Showing E4 and Light Code 12: Shorted Oven Sensor F8Older Thermador 30-Inch Range Cancels Cooking with F8 (Supervisory Error) E5Legacy Pro-Harmony Thermador Range E5 Means Potentiometer Failure (Light Code 21) F9Legacy Thermador ESC30/GSC30 Range with F9: Door Latch Supervisory Error E6Thermador PDR/PRG Range E6, Blue Lights 3-then-2: Over Temperature While Cooking F1Legacy RDF/REF 30-Inch Range F1: Stuck Buttons or Latch Switch

E9000 / E9010E9000 / E9010 questions

What voltage does my range need?

The rating plate gives the exact requirement for your model. We read it and measure the supply on site before drawing any conclusion. Please do not guess the figure yourself.

Could the problem be outside the range itself?

Possibly. That is why we measure the supply as well as the cooktop, rather than blaming the appliance. Only measurements settle it. A technician settles it with a meter.

Are E9000 and E9010 different problems?

The manufacturer text groups them as one entry with the same meaning: a supply voltage outside the normal range. We confirm what your unit is seeing.