Polaris pump gets power but only makes humming sound.

[Tbone2087]

I only run my Polaris occasionally during peak season about every other day for an hour or less. The Polaris pump motor ran normally a few days ago. Today, I flipped the manual switch for the Polaris pump it and it sounded completely different than usual. It only made a humming sound and I inferred that the impeller was not moving. Could this be a "minor" issue like a capacitor has failed or something more serious like frozen bearings, etc? Pump is over eight years old. I have a Dolphin S-200 on backorder but is not expected to be available until late July 2021. Any ideas? Thanks.

 

[JamesW]

Probably a bad capacitor.

 

[Tbone2087]

Installed new capacitor, turned on Polaris pump motor, humming sound continues, and motor will not spin. Although, I can turn motor shaft easily with wrench.

 

[JamesW]

Check the voltage.

Did you use the exact same capacitor?

 

[Tbone2087]

New capacitor is good and so is the old capacitor that I originally thought was bad. I can only assume that its an internal issue such as an armature, the windings, etc. Like I planned, I am going to purchase new Dolphin very soon. However, I will talk to my electrical engineer friend to see if he agrees that the pump motor has terminal issues. Thanks!

 

[Tbone2087]

Unsure about purchasing a new Dolphin pool cleaner. Since I was laid off a few months ago, I have more time and may go "old school" and manually vacuum. As my dad used to say, "hard work builds character".