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-   -   Upgrade to honeywell therostat (https://www.askmehelpdesk.com/showthread.php?t=91863)

  • May 12, 2007, 01:06 PM
    mschwimer
    Upgrade to honeywell therostat
    Upgrading to digital honeywell rth230b thermostat. Old one worked new one does not. Wired same way. White to white, green to green, yellow to yellow and red to RB with a jumper to RC. Is this correct?
  • May 12, 2007, 01:26 PM
    hvac1000
    Yep sounds correct unless the guy that put it in changes the color code that is used.
  • May 12, 2007, 01:52 PM
    hvacservicetech_07
    Is the display out?

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