How do I activate the Lock (Bloccaggio) function to prevent accidental button presses?
Press and hold the Clean button and the Turbo button simultaneously for more than 5 seconds to activate the Lock function. While locked, all buttons will be unresponsive. To unlock, press and hold the same two buttons together again for 2 seconds. (Page 13 / Page 29)
From the official Ferroli Ambra Remote Controller manual, page 29
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