I’ve been running into an issue with one Mighty Mouse contact sensor I installed about 1.5 months ago. It was installed and working fine for about a month, but for the last couple weeks (since the weather has gotten cold & snowy), it routinely reports a loss of supervision overnight. It has happened every night for the last five nights, and eight times total in the last two weeks.
- History logs show it’s happening anytime between 1:15 a.m. and 8:30 a.m.
- The sensor is on a large basement window.
- I keep the basement thermostat set low (60 F) overnight to save energy.
- The sensor antenna sits against a vinyl window pane.
- In the morning, I can open/close the window to clear the loss of supervision, so it doesn’t seem like it’s truly out of range.
- It IS the furthest sensor from the panel, which may be relevant.
- There is another MM sensor on another window in the same room; this sensor hasn’t been dropping out. It is probably ~5 feet closer to the panel than the failing one.
I’m going to set the basement thermostat up to 64 overnight for a few days to see if it helps, but I’m concerned the problem will return when the outside temperatures drop further.
Does anyone have some suggestions on how to eliminate this problem? Thank you!