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Thread: Breaker tripping

  1. #1
    DIY Junior Member Ben47's Avatar
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    Default Breaker tripping

    While watering my plants the breaker to the pump will trip at various times. It has happened four time over a period of 3 days. I have a Goulds Bruiser submersible pump, Model 7SB07422C and a 50 gallon tank. The pressure switch is set to come on at 40# and go off at 65#. It cycles at about 33 sec- 15 sec on, 18 sec off (which seems fast to me) with the hose bib putting out about 3/4 volume. What things could cause the breaker to trip?

  2. #2
    Moderator valveman's Avatar
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    Running for 15 seconds and off for 18 seconds is what is causing the breaker to trip. That is very fast and probably means you tank isn’t holding the 12-14 gallons it should. The bladder in the tank is probably bad, and that is also caused by cycling the pump on and off. Pumps like to run 24/7. Cycling on and off destroys everything in a pump system.

  3. #3
    DIY Senior Member craigpump's Avatar
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    The windings in the motor are overheating and eventually the motor will quit. Like valveman said, it sounds like the bladder has gone bad in the tank. Time for a new tank....

  4. #4
    DIY Junior Member Ben47's Avatar
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    Thanks. Both the pump and tank are only 6 months old and have been used rarely as the house is still being built. Very strange.

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    DIY Senior Member VAWellDriller's Avatar
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    All should be under warranty then....call the installer back.

  6. #6
    Moderator valveman's Avatar
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    Quote Originally Posted by valveman View Post
    The bladder in the tank is probably bad, and that is also caused by cycling the pump on and off.
    Even with a fairly new tank the bladder gets lot of abuse from the pump cycling on and off. And 2 wires motors are the worst for tripping a breaker when they cycle on and off too much.

  7. #7
    Jack of all trades DonL's Avatar
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    If you have a temporary electrical service for your house being built, you may just have excess voltage drop.

    A volt meter and amp probe will show you the problem. The breaker could be to small for the motor if the voltage is correct at the pump motor.

    Or the wire gauge is to small for its length.

    What size breaker and wire are you using ? What voltage are you using ?


    Good Luck.
    Last edited by DonL; 05-07-2013 at 07:02 PM.
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