Question about Jacuzzi MAGNUM POOL PUMP 1-1/2 HP MAGNUM PUMP BY

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Pump does not turn on except for a humming sound and shuts off jumping the electric breaker

I have a magnum 2000 jacuzzi pump that makikes a humming sound when turned on and then the electric breaker jumps after ten seconds of the motor humming. Is this bad

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  • frankfaustin Jun 02, 2009

    is the motor burnt

  • Evans St. Romain, Jr.
    Evans St. Romain, Jr. May 11, 2010

    Have you thoroughly clean the pump to ensure it's not jammed? If the motor cannot spin when power is applied, it will definitely pop the breaker. The motor will make a humming sound with power applied, can you see the water moving at all through the glass?



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This could be anything from a stuck impeller to bad windings in motor. If you open the pump at the lock ring and remove the difusser from the impeller you can see if you can spin the impeller, If it won't move is it something holding the impeller up remove it. If notit is probally a bad bearing and you should replace the motor. If the Impeller turns try turning it on and caerfully try to spin before it kicks the breaker. If it is sort of stuck and does not want to turn the motor is bad and needs to be replaced. If it spins and won't start same thing, If it spins and starts it is probally a start capicator. Shut the power off at the breaker remove the back of the motor the capacitor will be a small black or silver cylinder with 2 or 3 wires clipped to it. Remove this and take it to a motor shop and get an exact duplicate. and that should fix it. When putting back together be sure to lube all "O"rings and refill with water. Hope this helps.

Posted on Aug 25, 2009


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It could be the capacitor again, but most likely if it stopped while running, its not that, unless you had a brief power failure. The motor may have a built in thermal overload which turned the pump off. If it only humms then it could either be locked up by something in the impller, or could be the bearings in the motor have failed. If the motor doesn't smell "burnt" then you might stand a change to disassemble the pump. Disassemble the motor and replace bearings. Replace the mechanical seal while you have it apart. OR you could buy a new motor, as it is 10 years old.

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