What dE Means
The "dE" display means the cooktop is stuck in demonstration (showroom) mode, which intentionally disables heating on every zone — it looks like a full failure but is actually a settings issue.
Common Causes of dE
- Demo mode accidentally activated during a settings change
- Demo mode left active from a showroom or new-install unit
- Control lockout code entered incorrectly
🔧 One Safe Check You Can Try
Check your owner's manual for the specific demo-mode exit sequence for your model (often a button-and-timer combination) before assuming the cooktop needs a repair visit.
⚠ Why You Shouldn't Go Further Than That
- Attempting to force an exit sequence you're not sure of can accidentally trigger a different control lockout that's harder to clear.
- Opening the unit to check for a hardware fault when the issue is actually a settings lockout risks damaging a perfectly working cooktop.
- Repeated incorrect keypad sequences on some models can trigger a temporary safety lockout separate from demo mode.
- Getting a press-and-hold exit sequence wrong repeatedly can reset other saved control board preferences.
- This one rarely needs a technician, but guessing at fixes risks a different, harder-to-diagnose lockout.
Still Seeing dE?
Book a factory-trained technician and get it diagnosed correctly the first time — no guesswork, no repeat visits.