C wire for thermostat. Then you go through the step by step setup process and your thermostat is ready to use. If you have c wire install it simplifies the smart thermostat installation process. Check there for a wire running to the c terminal to confirm if you have an existing c wire. What is the c wire.
If you can handle programming. Dont worry its not that big of a deal to add a c wire. Adding a c wire is easier than you think and. Dont get stuck pulling your hair out trying to run a smart thermostat without a c wire.
C wire is an power cable that provides current to smart thermostat devices. The c wire issue 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 properly. First you connect wires to the thermostat. For homes that lack a common wire a range of solutions are available ranging from the practical to the rather risky.
It will be an added expense but will future proof you if further developments that require additional wires are needed. If you are going to have a new cable it is worth considering having a. Given that you thermostat needs one. If youre anything like me you need to keep all the hair you have.
What to do if you dont have a c wire. Whichever wire matches the color should be your c wire. Four ways to fix the c wire problem. Back in the olden days thermostats were simple onoff devices that didnt need their own continuous power supply.
The c or common wire can make or break your thermostat installation. Heres what you need to know. If you do not at present have a c wire or a spare that wire that you can use it may be worth considering having a new cable run from your heating cooling control box to the new thermostat.