What causes this

Discussion in 'Pumps and Tanks Well Forum & Blog. Water is life.' started by cameron, Jun 4, 2006.

  1. cameron

    cameron New Member

    Apr 20, 2006
    I have a 1 hp submersible pump located in a lake using it for irragation yesterday was cleaning silt from pump just had turned it off about 10 minutes prior to cleaning it and when I touched the pump it knocked the fire out of me. Do you think something is wrong because the breaker was turned off, is there something I should check and what causes this? the pump seemms to be wired correctly it is 220 and it is wired to a 100 amp service box located in garage. Before when I moved the pump and it was turned off for a while it didn't do this, I ran 500 ft. of 10/2 wire any help would be appreciated.
  2. Cass

    Cass Plumber

    Nov 12, 2005
    It sounds like you have a bad breaker. With the breaker off it should have 0 voltage on both legs. I would not check the the breaker I would just change it. The breaker could be intermitent and might show 0 voltage when you test it. Test the new breaker even though it is new. What brand is the breaker box?
    Last edited: Jun 4, 2006
  3. Sponsor

    Sponsor Paid Advertisement

  4. Bob NH

    Bob NH In the Trades

    Oct 20, 2005
    New Hampshire
    Treat everything as "Live" until you get the problem resolved.

    Assuming it is a 2-wire pump because you ran 10/2 wire.

    Is it wired for 115 Volts or 230 Volts?

    I assume that you have a ground connection.

    If you have a 2-pole breaker and it is turned off, you should have no power at all to the pump. If you have any voltage with the power off, there is a circuit problem.

    It might be possible that there is a capacitor in the motor that is discharging, but that is not usually a problem with AC motor circuits.

    Maybe you got a lightning strike.

    Using a meter, check for resistance between the power wires and the ground wire. It should have high resistance (open circuit).

    If you hang the pump from a float or otherwise support it off the bottom, you won't have silt problem.
  5. cameron

    cameron New Member

    Apr 20, 2006
    The breaker box is a Square D 100 Amp. when I check resisitance on the on the two legs and ground I get open reading. Is this correct any thing else I can check to verify, do you think it is building capacitance up because when I ran it and it sat for awhile I didn't feel the tingle only after I ran it and immediatly touched the pump did I get bit
    Last edited: Jun 4, 2006
  6. speedbump

    speedbump New Member

    Jul 15, 2005
    Water well and pump tech.
    Riverview, Fl.
    There are no capacitors in two wire motors.

    I have seen however 230 volt circuits wired with two different breakers. Two 115 volt breakers located in different places in the panel. I learned a long time ago not to assume wiring was done by a licensed electrician.

    Can you describe the breaker?

Similar Threads: causes
Forum Title Date
Pumps and Tanks Well Forum & Blog. Water is life. Pump current draw causes overload shutdown Apr 26, 2017
Pumps and Tanks Well Forum & Blog. Water is life. Well Pressurization pump causes oscillations in home plumping system Nov 13, 2016
Pumps and Tanks Well Forum & Blog. Water is life. Intuitive description of what causes upthrust? Mar 5, 2014
Pumps and Tanks Well Forum & Blog. Water is life. Waste bi-product of methane gas....causes deaths in VA Jul 5, 2007
Pumps and Tanks Well Forum & Blog. Water is life. Well Filter Causes Low Pressure Feb 16, 2006

Share This Page