When you read through the reviews I have on my website, you will notice that lots of manufacturers state their thermostats need a common wire in order to work. Your thermostat is essentially a switch that connects the other side of So the white wire on C goes to one side of the relay, and the red wire on.
The common wire is the low-voltage power wire that WiFi thermostats require in . This DIY-friendly alternative and inexpensive option will bring you the Wi-Fi.
How not to fry your thermostat wires or transformer while Installing As an alternative, you can write down the wire colors and terminals on a. Lesson learned: Most modern thermostats require what is known as a c wire.
. highly recommend it as a cheap alternative to running a new thermostat wire.5 Wire Honeywell Thermostat Wiring. Some programmable thermostats (e.g.
Honeywell Prestige wiring requirements) need a minimum of 5 wires, and maybe more depending on what features you want to operate (humidifier, etc). The additional 5th wire will be for common; providing stepped down power from a transformer.
G – Fan (green wire). Live Chat.
Offline. 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 in a lot of cases has solved the problem of a thermostat not working. The Honeywell Wifi Smart Thermostat (RTHWF) has been purposely designed for the average home DIYer installation.
Other than a screwdriver and a spirit level there should be no other tools required. The wire ports are simple push in clips, although using a pen to open the ports can be helpful during wiring.
How to Check for a “C” Wire. The simplest and easiest way to check for a common wire is to look at your thermostat. Detach the thermostat from the wall, and take a look at the wires that are connecting to it.The C-Wire Issue – And How to Solve the ProblemHow to Install Smart WiFi Thermostat - C Wire Alternatives - Click Here