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  1. #1
    Join Date
    Jan 2020
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    Question Thermostat defaulting to set up mode, not keeping time

    Hello,
    I have a Carrier furnace TP-PAC01. Recently the thermostat is constantly displaying the set up mode. Usually the set up mode only displays when you open the little door to access the control buttons. When I do open and close the door it will display normally for a while but always reverts to set up.

    It has also not been keeping time, which all my reading says is an issue with over heating. Looking at the furnace itself the LED light is not displaying any error codes, just solid yellow. I replaced the air filter, which was dirty (second time in 12 months), but that hasnt changed anything.

    The set up mode and lack of error code in addition to the time issue make me think it may not be overheating, but i really cant tell. Does anyone have an idea about what this might be? I have been in touch with a pro but after there was no LED error code he suggested i post here first.

    Thanks for your help!

    Kevin

  2. #2
    Join Date
    Dec 2007
    Posts
    9,497
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    Quote Originally Posted by Kgreen03 View Post
    Hello,
    I have a Carrier furnace TP-PAC01. Recently the thermostat is constantly displaying the set up mode. Usually the set up mode only displays when you open the little door to access the control buttons. When I do open and close the door it will display normally for a while but always reverts to set up.

    It has also not been keeping time, which all my reading says is an issue with over heating. Looking at the furnace itself the LED light is not displaying any error codes, just solid yellow. I replaced the air filter, which was dirty (second time in 12 months), but that hasnt changed anything.

    The set up mode and lack of error code in addition to the time issue make me think it may not be overheating, but i really cant tell. Does anyone have an idea about what this might be? I have been in touch with a pro but after there was no LED error code he suggested i post here first.

    Thanks for your help!

    Kevin
    That is the thermostat, NOT the furnace!!

    What filter are you using? If it is a 1" wide filter, it should be replaced far more often than that!!!
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  3. #3
    Join Date
    Jan 2020
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    Thread Starter

    Thanks for the reply

    Quote Originally Posted by pacnw View Post
    That is the thermostat, NOT the furnace!!

    What filter are you using? If it is a 1" wide filter, it should be replaced far more often than that!!!

    Thanks for the reply, ill start by replacing the thermostat and see if that solves the issue.

    Its a larger filter, about 4 or 5 inches wide.

  4. #4
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    7,313
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    Quote Originally Posted by Kgreen03 View Post
    Thanks for the reply, ill start by replacing the thermostat and see if that solves the issue.

    Its a larger filter, about 4 or 5 inches wide.
    Thats guessing, not diagnosing. You could replace lots of parts and never find a solution.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  5. #5
    Join Date
    Dec 2007
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    9,497
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    Quote Originally Posted by Kgreen03 View Post
    Thanks for the reply, ill start by replacing the thermostat and see if that solves the issue.
    The model number you provided is for the thermostat NOT the furnace.

    I was not saying the issue is the thermostat, it usually is NOT the thermostat!
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  6. #6
    Join Date
    Dec 2005
    Location
    Cincinnati, Oh
    Posts
    7,326
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    Quote Originally Posted by pacnw View Post
    The model number you provided is for the thermostat NOT the furnace.

    I was not saying the issue is the thermostat, it usually is NOT the thermostat!
    Wow, really took your advice the wrong way!
    "Better tell the sandman to stay away, because we're gonna be workin on this one all night."

    "Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."

    "Just get it done son."

    Dad adjusted

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