Watch an easy solution to install a wifi thermostat without a c (common) wire. Either you don't have enough wires at the thermostat or your furnace has no C wire connection.
Purchase a Wi-Fi Thermostat Without C-Wire. The final option is to purchase a Wi-Fi thermostat that does not require a c-wire. There are two popular models that can work without a c-wire. This includes the ecobee3 and the Emerson Sensi thermostat.
In today's video, we are taking a look at how easy and simple it is to install a WiFi Thermostat with or without a C Wire. ... Substitute G-Wire for C-Wire -- Install the Honeywell Wi-Fi smart ...Unused C Wire Terminal. So you've decided to install your new thermostat and discover that you have an unused wire but you do need a C wire connection. In this really short video, you will learn how to connect an unused wire so it can be used as your C wire, which is a lot of cases has solved the problem of a thermostat not working.
How to Install a WiFi Thermostat Without A C-Wire The first thing you want to do is check for a C-wire by looking at your old thermostat. Detach your thermostat and take a look at the wires connected to it.