'Fibaro Z-Wave FGK-101 Temperature & Door/Window Sensor' Full Support Handler

Hi. I’ve been onboard with this discussion for years now. I had this sensor working for quite some time, then all of a sudden things stopped working. After my usual crazy hand-wavy method of trying this, trying that, and after a new device handler, removing and adding it a couple hundred times, it does seem to kinda-sorta work again. I can triple-click this thing and see events and what seems to be a correct temperature reading.

What i see now is the LED blinking like crazy. All the time. I would say it’s fading in and out about once every 1/2 second, or twice a second. I don’t remember this happening before. I am guessing this will be draining the battery.

Anyone got any ideas as to why this is happening? The manual/instructions on the site don’t really clue me in with what the blinking codes mean.