What is this noise from the pump?

usfdan

New member
Mar 21, 2016
3
Tampa, FL
Good morning,

My pump (Max-E-Pro 1.5HP) was installed October 2019 and started making the noise in the video linked below. Filter basket is full with water with a few tiny bubbles floating at the top, but those have been there for quite a while. No bubbles coming out of pool returns. Backwashed and refilled DE yesterday, no change. Took it to Pinch-a-Penny since it's still under warranty and they checked the inlet port for clogs, changed the cap (it didn't appear blown), and they hooked it up to their 110 and the pump ran smooth in the store (the pump is on a 240 breaker). Reinstalled pump and checked all wire connections and no change in noise. What could the issue be?


Thanks,
Dan
 

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setsailsoon

Gold Supporter
LifeTime Supporter
TFP Guide
Oct 25, 2015
3,647
Stuart/FL
Pool Size
12800
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-30 Plus
Doesn't sound like a bearing or cavitation to me. Sounds more like something loose is vibrating in or near the electrical connections under the rear cover or a bonding wire that's close the the end cap of the motor.
 

usfdan

New member
Mar 21, 2016
3
Tampa, FL
Thanks everyone for the responses so far.

I removed the back cover and ran the pump, but the noise is still there. I also checked all electrical connections, including the bonding wire, and all are secure. I also pushed down on the pump to make sure it wasn't vibrating against the platform, but no luck.

With the back cover removed it's clear that the sound is coming from inside the pump from the motor. I'm going to have Pinch-a-Penny come out and take a look since it's still under warranty (still have the pay the $125 trip charge unfortunately).

Thanks,
Dan
 

CrystalRiver

Well-known member
Jun 19, 2020
333
Massachusetts
That's a 240 volt pump, and they connected it to 110 volts at the store? That's horribly hard on a motor. Drastically shortens the life. Don't let them (or anyone else) do that again.
 

JamesW

TFP Expert
Mar 2, 2011
21,509
That's a 240 volt pump, and they connected it to 110 volts at the store? That's horribly hard on a motor. Drastically shortens the life. Don't let them (or anyone else) do that again.
If it's a dual voltage pump, I would hope that they switched it to accept 120 volts before applying 120 volts.
 

kadavis

TFP Guide
In The Industry
Apr 5, 2015
1,645
tucson, arizona
Sounds like the bearing may be starting to slip on the endbell, hard to tell but testing the motor when it isn't under a loaded condition won't show this condition