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  1. #1
    Join Date
    Apr 2007
    Location
    Tucson, Arizona
    Posts
    328

    Answer the phone, we got a problem boss !

    One of my guys called today, pulled fuses, unit continues to run. I'm not sure what to think, so he sent this picture. I'll talk to him in the morning to see what he eventually found with it, unit got changed out anyway.
    Attached Images Attached Images  

  2. #2
    Join Date
    Jul 2005
    Posts
    5,576
    It's pretty obvious. The power doesn't go through those fuses. Either the fuses were bypassed in the disconnect, or that wasn't the disconnect for the unit.

  3. #3
    Join Date
    Feb 2012
    Location
    san pedro ca.
    Posts
    362
    Or someone hard wired that sucker. Always check for voltage before touching wires. I have found several units like this.

  4. #4
    Join Date
    Apr 2007
    Location
    Saint Augustine, Florida, United States
    Posts
    1,168
    you replaced a unit, interesting. hope you replaced the bypassed disconnect.

  5. #5
    Join Date
    May 2000
    Location
    Urbandale IA. USA
    Posts
    4,962
    Perpetual motion !
    .
    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.

  6. #6
    Join Date
    Jun 2002
    Location
    south jersey
    Posts
    1,131
    Lady next door called , her condenser stopped working.
    You need to put the phone down and get back to work!

  7. #7
    Join Date
    Apr 2007
    Location
    Tucson, Arizona
    Posts
    328

    Kind of got an answer on this one

    The homeowner tied in a piece of equipment in the garage (behind disco), apparentlty the way he double lugged and hooked it up backfed 115v back thru the load side. The homeowner disconnected his contraption and everything worked normal but through my guys off. He was doing something with 3 phase equip. hooked with a 3rd leg generator. I still don't understand exactly what he was doing or why and how. I'll stop by on monday to check on everything and make sure he hasn't tied into our equipment again, maybe get a more thorough understanding.

  8. #8
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,928
    Quote Originally Posted by JWB View Post
    you replaced a unit, interesting. hope you replaced the bypassed disconnect.
    My thoughts exactly.

    It's broke, you need a new one.


  9. #9
    Join Date
    Aug 2006
    Location
    Ohio
    Posts
    2,090
    Quote Originally Posted by shavedneon View Post
    but through my guys off.
    through:
    [throo]
    preposition

    In at one end, side, or surface and out at the other: to pass through a tunnel; We drove through Denver without stopping. Sun came through the window.


    Threw:

    verb (used without object)
    to cast, fling, or hurl a missile or the like.

    noun
    an act or instance of throwing or casting; cast; fling.




    I would have done the same thing.

  10. #10
    Join Date
    Feb 2007
    Location
    Central NJ
    Posts
    533
    it's haunted. Obviously.......
    You have to pay your due's before you pay the rent!

  11. #11
    Join Date
    Aug 2008
    Location
    San Clemente, CA
    Posts
    1,242
    We had one that we could not turn off the power too, even with the main c/b turned to off. We had to pull the meter and it was still on but that gave us the answer we were looking for, someone hooked it directly to the utility wires before the meter. Free a/c? It was a bank owned, got purchased and they were fixing it up to flip so we don't know who did it. Very dangerous being the wiring was not protected ether.

  12. #12
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    Quote Originally Posted by jnsrose View Post
    Lady next door called , her condenser stopped working.
    Lol ...

    Sent from my HTC Sensation 4G using Tapatalk

  13. #13
    Join Date
    Mar 2012
    Location
    Las Vegas, NV
    Posts
    17

    Ohm's Law

    Remember that according to Ohm's Law that if voltage goes down, Amps go up. If your unit was rated at 230V and was only given 115V and running, the Amperage drawn was doubled. The motors and compressor were certainly not rated for that amp draw and the product was overheated. That heat would destroy your motors if it weren't for the thermal overloads inside the motors/compressors to protect them. Also remember anytime a safety is tripped, it is weakened. This means that you are lucky the safeties worked. But what the heck is going on around you? Your A/C is a huge liability and nobody should steal power from it's disconnect, as that is against any code. With less than a $40 breaker (most are less than $20) and the same wiring to the equipment, the same voltage can be utilized in a safe manner to the equipment/operator and the HVAC system can remain isolated on it's own circuit as it should always be.

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