I recently ordered the Wyze thermostat, and like a lot of other forum posts I’ve found on this topic, I ran through the compatibility checker and was met with the bad news. I kept researching different reasons, and have seen a couple of different answers.
In my home, i have oil based water heating, as well as central air. The central air is controlled by this main thermostat, however the heat is in different zones, all heated separately by the same system (through different channels throughout the house), and by separate thermostats.
In my current thermostat, the wires are as follows;
Obviously since there is no C wire, i assumed i’d have to use the included adapter, but the issue goes beyond that. During my research, i learned that the G wire controls the fan i have in my attic that helps reduce the heat from the attic space, and i’ve found a post here on the forums referring to a 3 wire system that is incompatible due to the G wire, which sounds like it would work for me (use the G wire as a C wire and jump the G wire with the W wire in the control module), but i’ve got more than 3 wires.
I know in the compatibility areas it states zoned systems aren’t compatible, but i just want the thermostat to read the temp, and either turn on the heat/ac, or turn it off.
Is it possible with my current set up?