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  1. #14
    Join Date
    Jul 2018
    Location
    SeaTac WA
    Posts
    772
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    Many times I've seen the breaker that feeds the condensing unit not at Max fuse size. That's the first place to go inspect the contactor for it looks a little beat up replace it and if it's a single phase put a good start kid in it even if you have to get from the supply house to get the manufacturer start assist or a Supco.

    Sent from my SM-J700T using Tapatalk

  2. Likes Raehvac liked this post
  3. #15
    Join Date
    Jan 2017
    Location
    San Diego
    Posts
    97
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    Thread Starter
    Quote Originally Posted by Answer-Man View Post
    3 ton York Pulling 70+ amps (LRA). What is the breaker rated at 20 or 30 amps?

    I believe about all manufactures state the voltage can be +/- 10% and not effect operation

    I understand the whole "inrush" starting amps therory, but rarely do most units pull the rated LRA, because most units don't operate at the ARI rated conditions. I would be looking for a defect like: at the contactor, connections (don't forget the connections on the copressor), condensor fan and capacitor. Understand your problem before you start adding stuff that may hide the real problem and have it fail a short time later.

    Good Luck
    It was the contractor.

    Sent from my LG-TP450 using Tapatalk

  4. #16
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    28,989
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    Quote Originally Posted by Raehvac View Post
    It was the contractor.

    Sent from my LG-TP450 using Tapatalk
    Well at least you're honest.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  5. #17
    Join Date
    Jan 2017
    Location
    San Diego
    Posts
    97
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    Thread Starter
    Quote Originally Posted by timebuilder View Post
    Well at least you're honest.
    Haha Freudian slip!

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