Bosch Cooktop Showing “dE”: How to Leave Demo Mode

Every zone is dark, nothing warms up, and the display keeps showing dE. Before you assume the glass or the electronics have died, consider the likelier answer: the cooktop is in demonstration mode.

What demo mode is

Showroom units let shoppers press buttons and watch the display respond without the elements turning on. The setting can be left active on a cooktop that was a floor model, or switched on by accident while someone was navigating the control menu.

Ways to switch it off

1. Find the manual for your exact model. The exit sequence differs, but it often means holding one zone key, or the timer, for several seconds within a short window after power returns.
2. If you cannot locate the sequence, turn the cooktop circuit off at the breaker for two minutes and switch it back on. That alone clears the mode on some models, but not on all of them.
3. Try the sequence again right after power is restored, since the window to enter it is brief.

If it stays stuck

Should the display still show dE, a technician can often step you through the correct sequence by phone, or finish the job during a short visit. It is typically among the simplest service calls on a cooktop, because no parts are involved.

Have the model number ready before you call, since it lets us match the correct exit steps without guessing. It is usually printed on a label under the cooktop or in the manual.

Read more on cooktop repair and what we check when the zones do heat but behave oddly. If the code will not clear, schedule a technician to handle it.