Pentair A100DLL 3/4 HP Motor - bearing like noise

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Old 05-15-17, 01:11 PM
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Pentair A100DLL 3/4 HP Motor - bearing like noise

I have a Pentair A100DLL 3/4 HP Motor of unknown age that recently started making a louder than normal bearing whine noise. Is this motor serviceable, or does it just need to be replaced?

This is the part:

https://www.amazon.com/Pentair-A100D.../dp/B000KKVWAM

EDIT:

This is a pool pump motor - FYI
 
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Old 05-15-17, 01:31 PM
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That's a pretty fair price on a pump motor. It's unfortunate not knowing the age. The bearings can be replaced if you're handy. The link below has some sealed pool pump bearings listed. The part number is on the old one.

If you weren't going to rebuild it yourself it would be more cost effective to replace the motor rather than having it repaired.

Motor Bearings - INYO Pools
 
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Old 05-15-17, 01:52 PM
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Thanks for the link. I believe the motor is under 5 years old.

As the motor is simply 4 bolts to the housing, I will take it apart to see what I can make of it.

I agree, $150ish is a good price to just replace it, but I have a laundry list of items that apparently need to be replaced in this old house of ours.
 
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Old 05-15-17, 02:55 PM
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I'm not a big fan of working on pumps. You will need to separate the pump from the motor to get to the front bearing or replace the motor. That may require a new pump seal kit.
 
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Old 05-17-17, 11:11 AM
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I pulled the pump apart, but was not able to separate the housing from the motor. I am not sure how to get the impeller off of the motor shaft.

Regardless, the motor casing is in pretty bad shape with rust and some corrosion, so a new motor will have to be the next step.

I was not even able to get the end cap off the motor as it was corroded/rusted together.
 
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Old 06-04-17, 02:43 PM
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I ended up purchasing a new pump unit as was about $20 more than just a motor. I was guessing I would need new seals as well, so decided to just replace the whole unit.

Harris Pool Products Inground Pool Pumps - Pool Supplies Superstore

It seems to be fairly robust, and near identical in size to the old unit I was replacing. Easy install and is running nice and quiet.
 
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Old 06-04-17, 05:38 PM
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I'm not familiar with the Harris pumps. They are quite a bit less than their Hayward counterparts. Hope it lasts you a good long time.
 
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