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 5 Pin Plug Wiring DiagramWiring Diagram Ford F150Two Way SwitchHanging Ceiling Fan With LightOverhead Lighting Without WiringUs Dryer PlugCbr 600 F4 Wiring DiagramHow To Add Another Electrical Outlet