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Error code · Range

Thermador Range “dE” on an Induction Cooktop (Demo Mode)

Everything on the induction surface lights up and responds to touch, but no zone produces heat, and dE sits on the display. For Thermador's standalone induction cooktops, that code announces demo mode, a state built to…

Minor · safe to check yourself
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Code
dE
Appliance
Range
Brand
Thermador
Warranty
30-day workmanship

What dE means

Everything on the induction surface lights up and responds to touch, but no zone produces heat, and dE sits on the display. For Thermador's standalone induction cooktops, that code announces demo mode, a state built to block heating. The range documentation is silent on it, yet ranges share the same touch-control family, so demo mode is our most likely reading, offered with that caveat rather than as established fact.

Usual causes of dE

  • Demo mode still active from a showroom or display setup
  • Demo mode triggered unintentionally while touching the control panel
✓ A safe check worth trying

1. Clear the surface and set all controls to off. 2. At the electrical panel, flip the range's breaker off and count a full 30 seconds. 3. Switch the breaker back on. 4. Press any touch control inside the first 3 minutes after power returns. That sequence is what Thermador lists for demo mode on induction cooktops. If the zones remain cold, do not loop through it again.

! Why you should stop here
  • A breaker reset that changes nothing suggests something other than demo mode, and guessing at the platform could mean the wrong repair.
  • The cooktop controls neighbor energized parts and, on dual-fuel or gas versions, gas hardware.
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.
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More Range codes

E14Thermador Pro-Harmony Range with Five-and-Five Blue Lights: E14 Selector Switch Error F2 / E7015Thermador Induction Range Cooktop F2 / E7015: Electronics Overheated EThermador Range Display Reading "E" Plus a Number F1Thermador ESC30/GSC30 Range F1: Supervisory Relay Enable Shorted F4 / E7015Thermador Induction Range Cooktop F4 / E7015: Electronics Overheated, All Zones Off E0211Home Connect Update Notice E0211 on a Thermador Range F2Runaway Temperature Alarm F2 on a Legacy Thermador ESC30/GSC30 Range F5Thermador Induction Range Cooktop F5: Hot Cookware Near Control Panel
dEdE questions
Zones stay cold after the breaker reset. What now?

Chances are the code is more than demo mode. Arrange a diagnostic visit instead of repeating the sequence, because a second pass is unlikely to produce a different outcome.

Will the oven below the cooktop be affected?

No. Demo mode lives in the cooktop's control platform, whereas the oven has an independent control system, so baking and broiling carry on regardless of this code.

What is the 3-minute window about?

Thermador's reset relies on you touching a control soon after power comes back. Wait too long and the range may fall into the same state, which means cutting power again and starting over.

Request service

Not sure about dE?

Our technician checks it in your home and hands you a written price before touching anything.

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