Hi,I have a 4 year old HVAC system with only 4 wires. Install was easy.
Temp read 78 when I set it to 71 and 3 hours later it read 79 and hot/
warm air coming out of the vents.
No, it's still not working properly. Google has replaced the back plate
but I still have issues with the heat and cold not being the same as the
old thermostat and when I switch from heat to cool the furnace continues
to run.I have also installed the...
