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  1. #27
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,564
    To the OP. Slow down. Read your wiring diagrams. They tell you everything you need to know.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  2. #28
    Join Date
    Jan 2010
    Posts
    6,209
    Quote Originally Posted by ryan1088 View Post
    Hold on a second, you do refer work too??
    Looks like he found the right defrost timer didn't he ? So I would have to say yes to some degree.

  3. #29
    Join Date
    Jan 2010
    Posts
    6,209
    Quote Originally Posted by royd2 View Post
    idk why he wanted to change the dt switch he didnt even test it but if it were bad it would not stop from defrosting would it ? it would just stop from terminating at temo right?
    It would not stop defrosting if the timer motor stopped while in defrost yes but most systems have a heater hi limit to stop a melt down form happening. Also if you fan delay/defrost termination failed in the termination mode, it would trigger the defrost solenoid taking it out of defrost mode as soon as it went in.

  4. #30
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,595
    Quote Originally Posted by supertek65 View Post
    LMAO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    I thought you were just a straw boss. Ha.

  5. #31
    Join Date
    Sep 2011
    Location
    Plainfield IL
    Posts
    101
    im going to guess the unit your working on is a very old semi hermetic compressor with weak valves. Let us know what you find Roy

  6. #32
    Join Date
    Jan 2012
    Location
    ohio
    Posts
    140
    as it turned out we changed the defrost terminators and the contactors. i think the contactors were sticking keeping the compressor running when it should have shut off

  7. #33
    Join Date
    Sep 2004
    Location
    Phoenix, Arizona
    Posts
    88
    Well on some larger systems the heater won't energize till compressor shuts off. Heater relay off aux contacts on compressor contactor. Your post #13 is a good starting point to check.

  8. #34
    Join Date
    Sep 2004
    Location
    Phoenix, Arizona
    Posts
    88
    Guages and electric meter will tell your problem.

  9. #35
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,239
    Quote Originally Posted by steve36558 View Post
    Guages and electric meter will tell your problem.

    I think he fixed it...

    Quote Originally Posted by royd2 View Post
    as it turned out we changed the defrost terminators and the contactors. i think the contactors were sticking keeping the compressor running when it should have shut off


    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  10. #36
    Join Date
    Mar 2001
    Posts
    1,486
    So,,,,you changed the DFT, the contacter, and the time clock,,,,,,Which part was faulty, or were all three bad??? I'd have a hard time billing a customer for parts that weren't needed, or maybe that's just me,,,,,,,,
    One way to outthink people is to make them think you think. They'll think you're not really thinking what you're trying to get them to think you think...........

  11. #37
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,239
    Naw, it's not just you.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  12. #38
    Join Date
    Nov 2004
    Location
    up in the hizzy
    Posts
    1,375
    Quote Originally Posted by uniservice View Post
    I'd have a hard time billing a customer for parts that weren't needed, or maybe that's just me,,,,,,,,
    I'd have a hard time billing some customers for parts that were needed

  13. #39
    Join Date
    Jan 2010
    Posts
    6,209
    Quote Originally Posted by timebuilder View Post
    Naw, it's not just you.
    X3

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