Question about Hayward Garden

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Hello,\r\n I'm running a 3 year old 1.0 hp Hayward Superpump on 220VAC mains, supplying a 25,000 gallon above ground pool through 1 1/2 inch lines with sand filter, and Polaris cleaner with booster pump. I don't use biguanide. The system had been running fine, although the pump has always run rather hot and noisily. The motor shut itself down after making some intermittent grinding sounds. The mains breakers were still closed, the motor housing abnormally hot. I checked for intake obstruction, emptied the strainer, and re-primed. The motor started up and ran, but within seconds began emitting smoke and flames from the cooling vents. I killed the power immediately, and the fire extinguished itself. I pulled the motor, I find casing and impeller intact, shaft turns freely with no palpable slop. The capacitor, switches and contacts in the dryend are dry and show no charring or corrosion. The jumper is set correctly for 220v. I suspect bearing failure. Questions: 1) How can I determine if this unit is salvageable? 2) If I must replace, should I consider upgrade to 1.5 HP? Please advise. Thanks! W Emory Lawrence, MD

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  • Emory Lawrence Mar 29, 2011

    Again, thanks for your help John.

    I did replace motor w/ OEM unit of same specs along with new impeller seal. The impeller, and pump housing were in satisfactory condition and so were not replaced. The install went without any problem and now pumps works great!

    The old motor obviously had been sucking (no pun intended) for many months... and extremely noisy. Filtering and back-flushing were getting increasingly sluggish. This had developed so gradually that I did not notice. However, when the failing motor finally burst into flames, even I was able to recognize that a serious problem may have developed.

    Maybe next time I'll deal with this in more timely manner, rather than waiting for catastrophic failure at some future time :-)

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  • Hayward Master
  • 1,378 Answers

Thank you for posting your question here on Fixya.com.


Check the stator for a ground-fault using a megger or a ohm meter. If it smoked it is likely even an ohm meter will show a ground; if it is not grounded check for resistance across the line connections. A typical single phase motor will be about 1 ohm. If it is zero ore some number below .5 the winding is shorted.

A winding that smokes is nearly always best to be replaced. Even if you get it running again it is only going to be for a short time. I would not change the horsepower if the pump had been keeping the pool clean prior to the mechanical and/or electrical trouble. If you do you'll need a new impeller too since changing one without the other is pointless.

Was the pump leaking as you began to have these troubles? Have you confirmed the incoming line voltage is 220V and stays at least 208V or more under load? You may have had an underlying problem with voltage drop or a leaking seal that caused the failure that you will want to address to prevent this from happening again.


If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!

Posted on Mar 21, 2011

  • 1 more comment 
  • Emory Lawrence Mar 23, 2011

    Thank you for your prompt reply! The motor did indeed have short in windings, so I'm replacing it along with impeller seal. Agree w/ checking for voltage drop under load after install of new unit. You did mean AC potential measured with multimeter across the 2 hot leads with motor running, right? I did research sand filter specs, and as you suggest, upgrade to 1.5 HP not indicated.

  • John Prohaska
    John Prohaska Mar 23, 2011

    Yes, measure the potential on the two hot lines with the motor running. Voltage drop should be less than 10%...the less drop the better.

    John

  • John Prohaska
    John Prohaska Mar 29, 2011

    Glad it worked out and yes...catching a motor as the bearings and/or seal start to fail can be much cheaper to fix...often under $100. If you get a moment please rate my answer :)
    John

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