Results 1 to 3 of 3
  1. #1

    Question Missing Common Wire?

    I am changing the previously installed thermostat. The new one requires separate common and power wires. The existing one has the RH (power, I believe) and RC (common, I believe) jumpered together and connected to power.

    It has been like that for 20 years since it is the original thermostat. Will I be able to do that with the new one? Can a missing common wire be replaced with an add-a-wire kit?

    Thanks!

  2. #2
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,614
    how many wires do you have

  3. #3
    Join Date
    Mar 2004
    Location
    Illinois
    Posts
    6,959
    Sorry, you need to call a pro. DIY is not allowed on the site.

    >>>Thread Closed<<<

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event