Pentair Intelliflo VS Pool Pump Repair Part 1

[@ericdalvandi5527]

Thank you for your two Pentair Intelliflo pool pump videos. Watched both and enjoyed the lesson learned, no more Pentair Pumps.

[@retrotechandelectronics]

Glad you like them!

[@dannelson582]

I have a Pentair WhisperFlo VST pool pump just over a year old. It may be a victim of hurricane Milton. Not sure. It tries to start and then stops. It's throwing a error code 16 and 19. After removing the power end from the wet end I have it on my bench. I am trying to assess whether it is the Drive Unit or the motor itself. I put an allen wrench on the drive shaft and tried spending the motor. It has a hitch feel to it, a series of drag and release with no sound as you spin it. My question is, should it be a smooth spin or is there possibly something wrong with the drive shaft causing that resistance as it spins.

[@barryg41]

I would expect that the motor would turn freely with impeller off and the seal unloaded. The impellers outboard wear ring looks like it ran dry a few times. Been there done that myself. Good luck with the rebuild!

[@retrotechandelectronics]

I'll tell you that the findings are such that there would have been some wearable items replaced in the motor, unfortunately it was not THE cause of failure in this unit.

[@topolig1]

HI, do you the size of the grounding screw for the intelliflo pentair. My old one was 10-32 and wasn't the correct size. Do you happen to know the correct size. Seems a bigger screw.

[@richardfigueroa5485]

Those motors are sealed, the most common bug its bad driver. I am a Pentair warranty center here in the caribbean, here lots of cases i work are driver related, second are mechanical seals. Try out the hi temp universal male adapter. They have orings and no need of sealants usable and reliable!! Good luck

[@casvip1]

It was off as soon as you hit the breaker. The screen was still on due to the battery backup. The battery backup last 90 hours.

[@retrotechandelectronics]

Interesting.... I will have a look on the board again for the battery

[@TC-fo3dw]

is there a part 2?

[@retrotechandelectronics]

There is, but its a complicated issue, and im putting it together because its not just simply a motor issue

[@JustinAlexanderBell]

Next time you can just take the 3 screws off of the control panel and lift the electronics right off, then go do your repair and put it back.

[@retrotechandelectronics]

This assumes you know the motor is not the issue.

[@JustinAlexanderBell]

@@retrotechandelectronics No, it lets you work on the mechanics of the pump without unwiring the unit.

[@Misha-zh9om]

9/16 is that size Of screws 😉 15 mil want to strip screw…

[@retrotechandelectronics]

Only one size will fit correctly/

[@Bearthorn]

My rear fan doesn't turn.. I guess that's bad huh?

[@retrotechandelectronics]

Could be just a bearing

[@richardhelbling2837]

Z

[@retrotechandelectronics]

X

[@derrickbullington5504]

I cannot get the impeller off it is too tight. Ideas?