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  1. #1
    Join Date
    Jul 2014
    Posts
    8
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    low voltage short

    York air handler LY8S060A12UH11C. Keeps blowing 3 amp fuse. No continuity between control wires. New contacter. Disconnected common from both tstat and board. Fuse only blows when condenser control wires are connected to board.

  2. #2
    Join Date
    May 2000
    Location
    Urbandale IA. USA
    Posts
    5,035
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    24v control wire shorts against a pipe or metal siding and can blow the fuse 'in cooling' intermittently.
    Those who dance, appear insane to those who do not hear the music.
    Those who believe, appear ignorant to those who do not know God.

  3. #3
    Join Date
    Jul 2014
    Posts
    8
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    Yeah. that's exactly what it was

  4. #4
    Join Date
    Oct 2002
    Posts
    1,597
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    Get a call like that, first thing I ask is "has the yard been mowed yesterday?" Usually fight with weed eater.

  5. #5
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    8,253
    Post Likes
    Quote Originally Posted by timjimbob View Post
    Get a call like that, first thing I ask is "has the yard been mowed yesterday?" Usually fight with weed eater.
    6' of 1/2" seal tight will break the bank

  6. #6
    Join Date
    Mar 2012
    Location
    North Vernon, Indiana
    Posts
    23
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    Lawn guys create a lot of hvac business. I love it when they try to fix it so the homeowner won't know but mess it up.

  7. Likes doug1111 liked this post.
  8. #7
    Join Date
    Jan 2008
    Location
    Phoenix Arizona
    Posts
    1,173
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    Reversing valve wire tied to the suction line will rub through and blow. Or it could be a lot/hp safety tied the same way. It could be roof rats...
    "If history repeats itself I am so getting a dinosaur"

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