Question about Patton U2-1487 Floor / Box Fan

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Motor is siezed

Power to it, but motor shaft does not turn. Motor hums

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Usually this means dirt/dust/debris has gotten into the bearings. Needs a lube job.

Posted on Jun 16, 2009

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Agree with holloway. I've had to clean mine several times over the years. You'll have to take the motor apart, clean the shaft and housing of dust and gunk, then oil or WD-40 it and reassemble. Be careful to note in advance exactly how all the parts go back together.

Posted on Aug 25, 2010


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Hayward Pump motor, hums but won't start. If I turn the shaft it will keep running but once I turn if off it will not run until I do the same thing again. I have replaced the capacitor but still the s

1 or 2 capacitors on this motor?
Sometimes there are two...
One is a "Start" capacitor and if a 2nd one, that one is a "Run" capacitor.

If only 1 capacitor and you have replaced it... if not a faulty capacitor, then your windings are shot?

When I test a motor with this symptom, I will use the "Clock Face" method of checking for "Dead Spots" on the winding/stator:
Once you have removed the shaft cap on the back of the motor, I presume you have done this since that is only way to turn the shaft manually to get it to run in the manner you described. Place a small mark (1/4" long?) on the outside perimeter of the shaft, say at the 12:00 position. See picture attached...
Then flip switch, does it start or hum?
Then rotate shaft until your mark is now at the 1:00 position. Flip power switch, running or humming?
Do this at all clock positions as you turn/rotate shaft until you reach 12:00 once more. If the pump hums at all clock positions completely dead motor or bad capacitor. If a dead spot is at only one clock position, then absolutely, bad motor - either rebuild or replace.
Coincidentally the motor may stop each time on a dead spot, where the motor won't start due to a fried portion of the stator/winding/armature, only a major repair fixes this. The purpose of the test is to place the position of the stator in a different position in relation to the windings. If humming all the way around, then possibly a bad capacitor, because it is not starting in any position. If it starts say at all positions except 4:00 and 9:00 then motor is bad.

Good luck


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A local electric motor repair shop can help you if you find damage in the motor and/or pump.

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