Question about AO Smith Pool Pump Motor 1HP Square Flange Swimming Pool Pump Energy Efficient motor

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Probably not. Take the capacitor off and inspect it for physical damage and if it looks ok take it to an electric motor shop for testing. Assuming it is ok your motor will probably need work or replacement.

Posted on Jul 13, 2009


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1.5 hp 2 speed waterway pump only hums. Finished vacuuming and went to turn pump back on it hims and then trips breaker. Shaft moves freely, unable to start by turning with screwdriver. Capacitor?

Most likely the run capacitor yes. Some motors have 2 capacitors, some one, some a combined start/run capacitor.

Replace it with one the same or greater voltage, and the same capacitance.

Jul 22, 2017 | Waterway Pool & Spa

1 Answer

Hi Mike, I have a DOERR Emerson 2,25kw motor on my

Check the start/run capacitor first. If that is OK replace the motor as there will be a problem with the windings.

Aug 24, 2017 | Kitchen Appliances - Others

3 Answers

Pump makes a humming sound but will not run

Don't run it hot or it will stop working.
Sounds like start capacitor has gone bad.
Copy following link for motor troubleshoot resources:
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May 27, 2013 | AO Smith Centurion 1081 2 Hp Standard...

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When I turned my pump off to backwash and then turned it back on it made a humming noise then stopped running. Now it is doing nothing. what could the problem be?

sounds like a bad start capacitor, or there is something (rock, sand, or some debris) caught in the impeller.

The start capacitor not working will cause your motor to hum, then it will overheat and trip the high limit. It won't attempt to come back on until it has cooled. It's a common problem.

try clearing the impeller first, if that doesn't work and the motor shaft spins freely, then it's a capacitor.

Jul 27, 2011 | Hayward Power Flo Lx

1 Answer

Dayton 100K btu kerosene salamander heater - been running fine until last night. Unit is about 15 yrs. old. Ran for about an hour , then tripped out. I reset it and it would run for 1 - 2 min. and trip...

On that motor there should be a thermal overload to shut motor off in the event that it gets to hot. There also should be a start capacitor and if it is getting weak that could account for the unit tripping the breaker if it is trying to draw to many amps on start up. I would start by replacing the capacitor with plan to install new motor soon.
You may be able to extend the life of your motor some by giving it and fan a good cleaning, Good luck and thank you.

Jan 18, 2011 | Dayton (3E386) Heater

1 Answer

My air compress quit one day-tripped dedicated 20A breaker,25' of 10 ga wire thats worked fine for 9 yrs. Compr. is 9 yrs old -looks NEW gets little useage (20 hrs per year). Have taken apart mechanically;...

An ohm check doesn't tell you much about electrolytic capacitors except that they aren't shorted. One is a run capacitor (usually low uFd value) and the other is a start capacitor (large uFd). If either dried up, the power consumption should be reduced. Look at the cases of these units--they should not be bulged or leaking electrolyte. Check the rotation of the motor shaft by hand--it should spin freely. A worn out or seized bearing would produce these symptoms. Smell the motor to see if it has a burned odor. It's possible that the internal wiring has shorted. The 20 Amp circuit breaker could have failed--try moving the wiring to a similar breaker for a test. Hope some of this helps!

Jan 17, 2011 | Garden

1 Answer

Intermatic t10004 control panel trips the circuit breaker

That circuit breaker is letting you know that you've got a problem in the electrical wiring.... What's next is to turn the power off to BOTH legs of the breaker.
Begin by physically inspecting all the connections in the timer box, and at the breaker and all the way to the pump motor. Make sure all connections are dry, and there's no water in any of the conduits...this will cause a short circuit and trip the breaker. If there's any bare power leg wires touching a grounding point , this can cause the breaker to trip. Lastly check the motor on the pump; on the motor end, there should be a cap you can remove and use a crescent wrench to make sure the motor shaft is moving freely. It could be jammed with debris....this happens around my pool often because I'm surrounded by trees with needles. If the motor cannot turn freely, this will cause the breaker to blow... I'm pretty sure that your timer isn't the issue... Please let me know what you find out.

Nov 19, 2009 | Intermatic T10004R - Pool-Spa Mechanical...

1 Answer

Just replace compressor keep tripping circuit breaker

Shut the power off to the unit, spin the fan blade to see if it spins freely. If it doesn't spin freely, (there appears to be a little drag when you spin it),the bearings are bad, if it does spin freely, then try moving the motor shaft from side to side if there’s any play in the shaft side to side then the bearings are worn and motor needs replaced. Then, check the capacitor, if it’s bulging even slightly, the capacitor is bad and needs replaced. Most of the time people replace the capacitor if motor seems ok. If capacitor is ok, turn power on to see if the motor is getting the proper voltage, if it is and not trying to run, then the windings are probably open, the motor's bad and needs replaced.
The fan motor could have been your problem all the time, because if the fan doesn't come on or runs slow, it causes high head pressure,
which causes high amps, which could trip your breakers.

Aug 02, 2009 | Heating & Cooling

2 Answers

Pump starts and immediately trips breaker

if it buzzes but doesnt actually turn then check the starting capacitor .. when bad, the motor wont know which way to turn and will just buz and get hot until a thermal breaker or external overload breaker trips .. that should happen in about 5 or 10 seconds .. the same thing will happen if the pump is jammed .. make sure it turns freely ..

Aug 01, 2009 | Sta Rite 1 1/2 Hp Above Ground Pump Ne642

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