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I HAVE A 3 HP 1081 POOL PUMP MOTOR THAT HAS A GOOD ARMATURE BUT DOES NOT HAVE THE START OR RUN CAPACITOR. MY QUESTION IS ,WHAT ARE THE RATED CAPACITOR'S NUMBERS FOR THIS 3HP, 3450RPM, 208-230V AND HOW OR WHERE I COULD PURCHASE THEM.
THANKS,RON
Re: I HAVE A 3 HP 1081 POOL PUMP MOTOR THAT HAS A GOOD...
Contact me thru www.arrowpools.net with the model and serial number off the motor and I'll see if AOSmith still has a record of the caps used when the motor was made.
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The cap can reach end of life with out any signs of physical damage on the exterior. The cap should be replaced, confirming the issue or non-issue of the cap condition. Your description of your problem is consistent with a cap failure.
Either something blocking the impeller / shaft, from turning or the motor failed.
You can try to manually assist the motor, by removing the small cap at the back of the motor, getting a flat blade screwdriver, and right when you flip the switch (get a helper) turn the shaft clockwise while it buzzes. If it takes off - possible Bad Capacitor? Try a couple times if it doesn't take.
if bad capacitor, make sure you get the exact replacement, or 'Slightly Greater' will work - and I refer to the MFD number. Don't go smaller!
You are correct in assuming Hayward won't be of much help. A.O. Smith used to be original equipment on several brands of pool pump motors. Over the years Century/Magnatek took the business away from A.O. Smith, so A.O.Smith bought Century! Most pool pumps have a 1081 designation on them. It has been a while but I think that means it is rated for continuous duty (24/7). I'd call a local motor shop, they rebuild these things all day long.
should be a 30, you can have the old one tested it might be good ? I write the value on the back and side for future reference to avoid this problem as the value is normally not stated on the motor's label like is done on air conditioning motors. search your area for your LOCAL POOL PUMP MOTOR REPAIR GUY WITH FREE TESTING
If the armature will rotate freely and the bearings are not frozen, then it's probably a bad start capacitor. They are not very expensive compared to a new motor so it might be worth replacing it to see if it's bad.
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