Fibaro Flood Sensor Stopped reporting temperture

Last year I installed the 1st gen (not z-wave plus) Fibaro Flood Sensor in my attic with the purpose of measuring temperature to turn my attic fan off and on. This has worked wonderfully until this week.

FYI I am running the sensor with an external 12v power source (no battery) as this is needed because of the potentially high temps in an attic. This week the temp got ‘stuck’ and kept reading the same thing (99.6) all the time. Power cycle didn’t fix it. It properly reports everything else (tamper, water) I excluded then re-included the device. It still only reports tamper & water. Now temp just shows “–”

I’ve already tried this:

Any ideas or did the sensor after 6 months? Thanks everyone!

4 posts were merged into an existing topic: Z-Wave Issues with Firmware Update 30.3