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-   -   Noma thermostat wiring problem (https://www.askmehelpdesk.com/showthread.php?t=42249)

  • Nov 11, 2006, 06:04 PM
    zhiping
    Noma thermostat wiring problem
    I just got a new 7 DAY NOMA PROGRAMMABLE THERMOSTAT(52-2570-6). The old one is Honeywell t87f 3673
    And the orig. wiring includes 5 wires: Y(orange), W(yellow), Rc(red), Rh(black) and G(green).
    So I tried this: Y(orange), W-O/B(yellow), Rc(red), Rh(black) and G(green). When I turned on power, the fan just kept turning on and then turning off after 4 seconds.. . What did I do wrong? Thanks.
  • Nov 11, 2006, 09:53 PM
    labman
    Some thermostats have jumpers you have to set according to your type of system. Look over the directions and make sure the jumpers are right.
  • Nov 15, 2006, 05:16 PM
    zhiping
    I did as direction said: remove the jumper... I guess that tstat doesn't work for Honeywell

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