Electrolux Induction Cooktop Kite C-561 3611 00 Rev B- All the lights

Here are a few steps you can try to reset the cooktop's user interface board:

• First, unplug the cooktop from power for at least 60 seconds. This may reset the board if it's having a software glitch.
• Locate the small reset/recall button on the user interface board. It's usually a tiny push button. Press and hold it for 5-10 seconds with the cooktop unplugged.
• Check for a removable fuse or circuit breaker on the user interface board, and replace or reset it if you find one.
• Disconnect and reconnect all connectors to the board, making sure they are fully seated. A loose ribbon cable can cause issues.
• If there is a small internal battery on the board, try removing it for 30 minutes before reinstalling. This may reset settings.
• Update the firmware on the board if the cooktop has firmware update capabilities. Newer firmware may fix glitches.
• As a last resort, open up the board and look for any damaged capacitors or components. Replacing any blown ones can get it working again.

If even after all this the board is still constantly lit up, it likely has developed a non-resettable fault and will need complete replacement. But trying a reset can potentially get it operational again without a costly board swap.