I’m really not sure whats going on here and although the problem seems gone I’d like to post in case there is something else rearing its head.
This past Saturday I noticed a automation using Smart Lighting didn’t fire. It’s pretty simple, if there is motion on my Kitchen motion sensor and its between sunset and sunrise turn on the light over the kitchen sink. I checked SmartThings and the “Kitchen Motion Sensor” was unavailable. Its a gen 1 SmartThings sensor. I recently replaced the battery, not even two weeks ago, and it “died” reporting 100% battery. So I opened it up and hit the button, it blinked blue but wouldn’t come back. I was busy with other things so I just turned on the light manually and forgot about it.
Next day (Sunday) I was making dinner and something in the oven spilled over setting off the smoke alarm. My smoke alarms have kiddie relays that go to Konnected which through a custom SHM rule is supposed to turn on all the lights. It didn’t. In fact the inputs on Konnected never changed state (or they did but didn’t relay to SmartThings). So at this point I’m thinking somethings up with the hub. I unplugged everything network related in the house (router, modem, SmartThings hub, etc). I also for good measure pulled the batteries (glad I did…they were getting corroded) from the hub. I left everything sit for 20 minutes and plugged everything back in sequence. Modem, 5 minutes, router, another 5 minutes, hub, 5 minutes, Konnected panels, etc.
I gave it about a hour and checked the app. 9 of my ZigBee devices were showing the red health dot, 3 leak sensors, a couple temp/humidity sensors, 3 multi purpose sensors, a arrival sensor, and my kitchen motion sensor. I know that it can take some time for the ZigBee network to rebuild so I attempted to be patient and left it do its thing.
By Monday night (24+ hour after reboot) all the leak sensors, temp/humidity sensors, and the arrival sensor were back but the three multi purpose sensors and the Kitchen motion still were unavailable. The Kitchen motion was my most important so based on the help documents it says to go into “Add a thing”, remove the battery, and put it back in. I did that and the motion sensor came back and my automation ran turning on the light. Great! So I tried the multi purpose sensors. None would light up, all three magically had dead batteries. I thought that cant be right so I looked at the last reported battery level for each: 78%, 78%, and 89%. Just for the hell of it I put in a new battery into one of them and sure enough it lit up, started working, and reported 100% battery. I don’t have two spare batteries for the other two but I’m sure that will fix it.
So first why would three working sensors that reported good batteries all go dead after a ZigBee repair. These were all relatively new batteries and other devices which have been in much longer were fine. Did the ZigBee repair somehow kill them? Secondly is there anything I can look at to see why it did this in the first place? I’m assuming this is a isolated issue since I haven’t seen any other posts.
Side note - I’ve never had ZigBee or Z-Wave mess issues in my house. My hub is in the basement on one side and I have a SmartThings ZigBee outlet on the other side first floor. I have 17 battery powered ZigBee devices (all SmartSense sensors) throughout and never had a issue like this before.