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  1. #14
    Join Date
    Feb 2013
    Location
    In a house with windows and doors on it.
    Posts
    250
    Post Likes
    Interesting thread, We had same problem with an X13 on a York Unit. Constant run. 16 Go Backs To Cst. House. Still never fixed problem.

  2. #15
    Join Date
    Feb 2013
    Location
    In a house with windows and doors on it.
    Posts
    250
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    Why does the blower run continuously without a call from the thermostat on this York packaged unit?
    This usually indicates a limit has tripped.

  3. #16
    Join Date
    Jan 2013
    Location
    Western Ky
    Posts
    209
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    sounds like it could be bad module, never had one run constant though usually wont run at all, most x13 failures ive run across have been right at the start of cooling season or right at the start of heating season something with the humidity and moisture getting in the modules

  4. #17
    Join Date
    Feb 2013
    Location
    In a house with windows and doors on it.
    Posts
    250
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    I've already replaced module. Same problem, constantly after call for cool ends. Sometimes Ill go out there and the system is off and the blower is on. I'm trying to understand why the limit would cause the blower to constantly run.

  5. #18
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    14,301
    Post Likes
    Quote Originally Posted by mr.charles View Post
    I've already replaced module. Same problem, constantly after call for cool ends. Sometimes Ill go out there and the system is off and the blower is on. I'm trying to understand why the limit would cause the blower to constantly run.
    Its a safety to cool off the heat exchanger.

  6. #19
    Join Date
    Feb 2013
    Location
    In a house with windows and doors on it.
    Posts
    250
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    Its not a furnace

  7. #20
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    14,301
    Post Likes
    To cool off the electric resistance heaters in a heat pump or electric furnace.

  8. #21
    Join Date
    Dec 2002
    Location
    Arizona
    Posts
    4,480
    Post Likes
    I know you said it runs on any 24v tap, but does it change speeds as you do this?
    Make your expertise uniquely valuable.

    Make your influence uniquely far-reaching.

  9. #22
    Join Date
    Jan 2012
    Location
    Arrowhead Stadium
    Posts
    912
    Post Likes
    I have had problems with nest stats that have switches in the sub base.

  10. #23
    Join Date
    Nov 2004
    Location
    Anchorage Alaska / Seattle WA
    Posts
    205
    Post Likes
    Whatever is controlling your motor has failed.... either the fan relay has welded closed or the board scr has failed shorted.

  11. #24
    Join Date
    Jul 2012
    Location
    Ashland, VA
    Posts
    66
    Post Likes
    I was doing a startup on a Carrier system once, fan motor would run constantly. Easy solution, the plug on the board was connected backwards. I flipped it around the right way and everything worked perfectly.

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