Motion Sensor Went "offline" - Best Way to Fix?
We have had SS3 for about a year. Sensors have all been in the same place for all that time, with no connection issues (except once, the keypad lost connection to the base station).
A day ago, the motion sensor upstairs went "offline". All other alarm functions work. I put the system into test mode, tested a few random sensors around the house as a control group, and they test function was working. I then tested the problem motion sensor, and the base station didn't give any indication it received a signal from the sensor. I then took the problem sensor downstairs in the same room as the base station and pressed the test button. Again, the base station gave no indication it received the signal from the sensor.
I'm using the term "problem sensor" just to refer to the motion sensor that has gone offline, but it has never before had any issues, just this one time. (If it matters, I actually test the entire system only a few days ago and all sensors worked. :/ )
Should I just go ahead and replace the battery? I thought they were supposed to last 3-5 years, no? We have an entry sensor upstairs near the problem motion sensor, and it has been working all this time, fwiw.
Or is there a way to turn the entire system on/off, without losing settings, to try and re-establish a connection to the problem sensor?