Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats. Your thermostat wires could be compatible with our Nest Thermostats. Are you located in North America or Europe? Do you have a heat pump system? And could you send us a photo of your current thermostat wiring configuration so I can take a closer look? Also, you may use our Compatibility Checker to determine if a Nest Thermostat is compatible with your heating and cooling system.
