Sorry, the web browser you're using is not supported by this website.

Please use Google Chrome, Firefox, Safari, or another browser to access Thank you.

Skip to main content

We use cookies to enhance your experience. For details on how we use cookies, collect data, & how to manage your consent please see our Cookie Policy & Privacy Policy.

Where does the blue wire on a thermostat go?

There is a blue c-wire in the C slot. A constant flow of energy is sent by this wire. You don't have to have a C-wire if you don't see it. If your existing thermostat doesn't need the C-wire, it could be hidden in the wall.

Let's Get It Fixed!

HomeX virtual experts will assess your issue (for free!) and can resolve simple problems.

What Did You Think of This Article?

What Did You Think of This Article?

Shop Recommended ProductsShop HomeX Recommended Products