Quote:
Originally Posted by Jewish Rabbi
Most people who have problems with smart thermostats don’t have c wires. If you don’t have it constantly powered you may struggle. I have a nest gen 3 with no problems fwiw.
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Most of them won't work at all without the "C" wire. They make "add a wire" kits to convert but I could definitely see how adding that extra component could lead to issues. And to your point I have plenty of thermostat wires, I'm pretty sure I ran 12 strand, you can never have too many wires. I've had 3 different wifi stats & never had an issue, but again I've always had a true common back to the furnace.