My Miele 500 stovetop is locked, how do I unlock it?

Wrong pan

Miele cooktop induction KM 6350, 6380, 6382, 6383 dE mode
How to switch off demonstration mode
Press ‘power’ button on front and ‘lock’ bottom at same time until you get p5 mode displaying ( it is in programming) mode.
Then press top left to ‘0’, bottom left panel to ‘0’, then press right bottom panel to 9, then press on ‘power’ button to save. This should take it off demonstration mode.

Not sure of the brand.

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Finally I found the meaning of FE 31.
FE31 means "control panel is dirty" or "some object is on the control panel"
When error code FE31 appear on the control panel, clean the control panel area with clean wet paper towel or remove any object on the control panel.
If you do not trust me, turn on the cooktop and put small piece of paper towel on control panel. You cannot see FE31 error code soon. Turn off the cooktop and remove the piece of paper towel, the error code EF31 will disappear.

Hi,

If you have an illuminated red key symbol on the cooktop, press down where the illuminated red key is, for about 5 seconds. This method works on many Schott Ceran / Miele cooktops including the KM443 listed above.

If this doesn't work, please let me know the correct model number.

Hope this helps.

Regards,
BElectric

Not sure if this is for your exact model but here is a link to an Online User's Manual for one similar:

http://www.kitchenaid.com/assets/pdfs/product/ZUSECARE/KECC508RPS_Use%20and%20Care_EN.pdf

Just click on the link (underlined and highlighted text) with your mouse and a new browser window will automatically open to show you the information in the manual.

On page 7, it reads as follows:

To Lock Cooktop: Touch and hold the CONTROL LOCK/
ALL OFF keypad for 5 seconds. After 5 seconds, CONTROL
LOCK will glow red, indicating that the cooktop touch controls
are in the lockout position.

To Unlock Cooktop: Touch and hold the CONTROL LOCK/
ALL OFF keypad for 5 seconds.

If you have any questions or require further assistance just comment back to this page and I will endeavour to help.

Good luck and please click on the 4 Thumbs Up rating icon if this was at all helpful.

Thank you very much.

Joe.

Either hold down the 'Unlock' button or if the little red pad lock symbol is lid in the main display hold the 'Oven light' button for about 7 seconds...

How do I unlock wolf stove top?

seeming like you forget how to lock off.
keep the lock icon pressed stronger and longer,until will hear a beep,then turn it on