My Wyze thermostat is triggering the AC compressor to turn on in Heat mode.
Wires connected on old thermostat:
RC - Jumpered to RH
Wires connected on furnace panel:
Because I have no C-wire at the thermostat, Wyze said I must install the Wyze adapter at the furnace. I did so, however I did not have a Y-wire connected at the furnace panel and also had a C-wire connected. The Wyze setup did not say anything about removing the C-wire on the furnace, so I left that and added the Wyze adapter. Wyze setup said to label the G-wire as C and connect to C on the Wyze Thermostat. When in heating mode, the AC compressor turns on as well as the furnace. Some further testing shows that Fan Mode also triggers the AC compressor.
I removed the C-wire from the furnace panel and moved it to the Y-terminal on the Wyze adapter; That has stopped the AC compressor from turning on in Heat mode and Fan mode, but now it is not turning on in Cool mode.