How To Wire My Thermostat December 31, 2018 Wiring . diy.stackexchange.comHeat only 2. This article applies to the ecobee3, ecobee3 lite, and ecobee4 ecobee thermostats require a C (common) wire to power on. If you only... support.ecobee.com 4 Wire Fan Wiring220 Amp BreakerHow To Wire A Honeywell Digital ThermostatIce Cube Relay SocketFour Way Dimmer Switch WiringWiring Diagram For Seven Way Trailer PlugYork Condenser Wiring DiagramHow To Rewire A Lamp With A Rotary Switch