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Thread: T-stat Help

  1. #1
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    Just installed a honeywell 8320 using six wires to trane xv80 unit. all connections are good (triple checked). I tried using fan only or circular fan, but the t-stat just kept blinking/clicking. no response from the blower.

    anybody having a similar experince before?

    Please help.

    thanks.

    tungaw.

  2. #2
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    Originally posted by tungaw
    Just installed a honeywell 8320 using six wires to trane xv80 unit. all connections are good (triple checked). I tried using fan only or circular fan, but the t-stat just kept blinking/clicking. no response from the blower.

    anybody having a similar experince before?

    Please help.

    thanks.

    tungaw.
    "B" doesn't mean blower. I think.
    Beware of advice given by some guy on the Internet.

  3. #3
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    "G" is the fan relay which is properly connected to the "G" in the gas furnace conductor.

    please let me know.

    thanks.

  4. #4
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    Go to the furnace and check for power at the individual connections from the stat.
    Did you go to the furnace and connect R-G to see if blower would energize?

  5. #5
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    the blower works if heat is turned on and I also notice once the 2nd stage kicks in.

    you mean to try and jump the R and G onductors? Before I try it, what is it suppose to indicate?


  6. #6
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    We cannot give any help you are request over the net at this site.

    I just wanted you to know that B wasn't blower because I don't know your abilities, and some might assume B was for blower.
    Beware of advice given by some guy on the Internet.

  7. #7
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    Originally posted by tungaw
    Just installed a honeywell 8320 using six wires to trane xv80 unit. all connections are good (triple checked). I tried using fan only or circular fan, but the t-stat just kept blinking/clicking. no response from the blower.

    anybody having a similar experince before?

    Please help.

    thanks.

    tungaw.
    If all of the wires were connected correctly then it would not be "blinking/clicking".

    It sounds like your grounded, not a good thing for that XV80 there.
    Sometimes when I consider what tremendous consequences come from little things, I am tempted to think there are no little things!

  8. #8
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    with single stage thermostat, everything was working well. I also noted the installer obtained a 24volt source to power my whole house humidifier from the furnace controller instead of getting it from a dedicated 24 volt source. could this be the reason why it might be grounded?

  9. #9
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    Sorry tungaw but we aren't really supposed to be doing the step thing.
    If you have 24 V present at the furnace and your connections are tight, you should see 24 V at the stat.
    If your blower energizes for heat and not for fan only, your control is probably defective or there is a problem with a short or ground.

  10. #10
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    thanks chillbilly. i'll do a service call tomorrow. i just wanted to make sure that the furnace is still okay to operate since somebody mentioned that it might be grounded.

    thanks for the insights anyway.

    tungaw.

  11. #11
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    Not to sound like an A hole, but you installed a thermostat on Saturday and are going to call for a service call on a Sunday? That call should qualify for the regular OT rate and a special "I can't beleive some people" rate. You may want to wait until Monday.
    Beware of advice given by some guy on the Internet.

  12. #12
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    OOh! mr milkman! your a naughty one
    Btw, do you still deliver by horse and wagon, or did they finally give you a truck?

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