Have a Sta rite pump with AO Smith 2hp motor#77-177897-22. Extremely loud hard start, Change 30 MF capicitor...no change!! It will try and start 2 to 3 times tripping thermal overload and then on the 3rd or 4th attempt it starts. Motor is running with mild to mod noise level. It is in an enclosed pool equipment room and does not get wet.

well have the capacitors checked and the start switch checked. search your area for pool pump motor repair with free tasting

most cases the bearings are bad or a bad end bell or both, have a motor shop with free testing look at it it might be saved

i recommend the sta rite dura glass . it's the best pump out there! you will need to plumb it in . but it's worth it ... it's the only pump i sell .. remember to prime the pump after any pump repair + never starve the pump for water . find a used pump from your local pool pump motor repair guy and ask him how 2 take better care of your pump.. he can save you thousands of dollhair$ over the years .. jay pump guy longwood Florida

You should try to dry the motor out and not run it until it does. You can use a hair dryer, etc. or just wait. You might even be able to find a spray that is made just for absorbing water under these circumstances at a motor rebuilder. Once it dries, it may work fine.
Gary

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

Check the volute o-ring for damage. It sometimes moves as you re-tighten the band around the pump halves and gets pinched. If it was, replace it. You may also need to replace the pump seal and insert if the pump is old enough to have had one. Whenever you change a motor you should also replace the seal.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!

John

Hi,

It will be better to service the machine the machine than to change the bearing.
Servicing the machine will stop the high pitch sound and makes it work better and also reduce your cost.

Thanks for contacting Fixya.

A.O.Smith USQ1152.

COULD IT HAVE A SUCTION LEAK PULLING IN AIR? RUNNING BACKWARDS? BYPASSING INTERNALLY ALL THE TIME? COULD YOUR DISCHARGE HOSE HAVE A RESTRICTION IN IT SLOWING IT DOWN? HOPE THIS HELPS, JODY

If the noise you are hearing is like a grinding, then the bearings are gone. Sta-Rite does not make the motors for their pumps, either AO Smith, or Centurian, makes them, so they recommend that you replace the motor with a new one. You can try a small motor repair shop in your area.

If it is an AO Smith motor, you may be able to find more information at the following website:

http://www.aosmithmotors.com/html/products/productLiterature.html