Insulating a Frozen Garage Opener (Refoss)

Cupertino, December 28, 2021

I live in Canada and now it looks more like the North Pole, with temperatures between -20 C and -30 C. My Refoss opener, when it gets so cold, always reports my "OPEN" door no matter what. I assume that the contact sensors are just frozen and cannot detect each other. Does anyone have any ideas on how to insulate these sensors so that they can work in the cold? I wish I could trust his condition again.

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