Shawn Aruch Posted July 14, 2015 Share Posted July 14, 2015 Have an ISY994i, a bunch of switchlincs, togglelincs, motion detectors, access points, and an insteon thermostat. About 1-2x a week the thermo will go into heat mode @ 70 degrees (especially annoying now in the summer). Motion detectors won't work. Local controls work, but nothing else does. Any thoughts? Going on vacation next month and may have to swap the thermo for a non-insteon if I can't find a solution. Link to comment Share on other sites More sharing options...
stusviews Posted July 14, 2015 Share Posted July 14, 2015 Do you have any scenes or programs that include the thermostat? Link to comment Share on other sites More sharing options...
Shawn Aruch Posted July 14, 2015 Author Share Posted July 14, 2015 Yes - but I unplugged the ISY and the PLM and the problem persists. Link to comment Share on other sites More sharing options...
stusviews Posted July 14, 2015 Share Posted July 14, 2015 Try doing a factory reset on the 2441TH. Link to comment Share on other sites More sharing options...
Techman Posted July 14, 2015 Share Posted July 14, 2015 Yes - but I unplugged the ISY and the PLM and the problem persists. If the factory reset doesn't help then you should measure your voltage going to the thermostat and also make sure all the connections are good. Link to comment Share on other sites More sharing options...
Michel Kohanim Posted July 14, 2015 Share Posted July 14, 2015 Hi shawnaruch, I am so very sorry to hear. I have seen this problem before twice: 1. One was related to the thermostat dongle. If you unplug the dongle from the thermostat and if everything goes back to normal, then the issue is the dongle and you need a replacement 2. Another one was related to Baby monitors: some kill INSTEON RF signals With kind regards, Michel Link to comment Share on other sites More sharing options...
stusviews Posted July 15, 2015 Share Posted July 15, 2015 The Insteon compatible Venstar thermostat (T1700, T1800, T1900) has a dongle. The Insteon thermostat (2441TH) does not. Link to comment Share on other sites More sharing options...
MWareman Posted July 16, 2015 Share Posted July 16, 2015 Is it a 2441TH that the OP has? I gave up on mine a long time ago - after two replacements it would still randomly change settings. It was related to the board in my furnace I think. Switched to a zwave stat and not had an issue since. Link to comment Share on other sites More sharing options...
Shawn Aruch Posted July 28, 2015 Author Share Posted July 28, 2015 Thanks for all the suggestions. Turned out to be a bad PLM. After I unplugged it, thermo still had issues so I did the factory reset. Thermo is now going on 2 weeks with no issues. Got a new PLM, paired everything back up and I'm back in business. Thanks again! Link to comment Share on other sites More sharing options...
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