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 How To Connect Ceiling Fan To Power SupplyVehicle Trailer Plug WiringViper 5701 Wiring DiagramWhy Use A RelayHow To Replace Ceiling Fan SwitchGm3000 Wiring Harness DiagramCeiling Pull Switch Wiring DiagramElectrical Wire Types And Sizes