Reversing AC Motor Rotation

Discussion in 'The Projects Forum' started by jsebastian, May 23, 2014.

  1. jsebastian

    Thread Starter New Member

    May 23, 2014
    2
    0
    Hi,

    New to the forum, eager beginning amateur.

    I am interested in creating a device that would reverse the pump motor (decorative outdoor fountain) rotation for about 5 seconds, about once per hour. The purpose would be to clear debris from the filter, which accumulates detritus and impedes water flow.

    I would appreciate any suggestions or comments. Thanks for your consideration.

    John
     
  2. BillB3857

    Senior Member

    Feb 28, 2009
    2,400
    348
    It would depend upon the type of motor. Shaded pole, out of luck. Single phase with start winding and start switch, possible, but not too easy. 3 phase, easy.
     
  3. #12

    Expert

    Nov 30, 2010
    16,343
    6,828
    Not likely. AC motors generally can't be reversed unless they are designed that way.
    Look for an extra wire. Maybe it has a "reverse", maybe not.

    ps, also not likely that a decorative fountain has a 3 phase motor in it.
     
  4. inwo

    Well-Known Member

    Nov 7, 2013
    2,435
    315
    Seems an auxiliary pump of some kind for back flushing is in order. Or valving.

    Even if motor is reversible, pump may not be.
     
  5. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,565
    2,379
    Fountains of Trevi maybe!:)

    And then there are some small decorative fountains that have a DC motor.;)
    Max.
     
  6. #12

    Expert

    Nov 30, 2010
    16,343
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    That's encouraging. DC motors can usually be reversed.
    Watch for a power converter on the pump!:)
     
  7. BillB3857

    Senior Member

    Feb 28, 2009
    2,400
    348
    Depends upon the size of the fountain. I doubt if the Vegas casinos use single phase.:D
     
  8. #12

    Expert

    Nov 30, 2010
    16,343
    6,828
    Very funny, guys. Las Vegas can afford to hire an electrician.:rolleyes:
     
    Metalmann likes this.
  9. jsebastian

    Thread Starter New Member

    May 23, 2014
    2
    0
    Thanks, guys, I appreciate your contributions!

    John
     
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