20 Most Recent Pentair 1.0 Hp Whisperflo Pump Questions & Answers

if you have a sand filter or de filter turn system off then turn multiport to back wash turn back on let run until the backwash glass is clear turn off then turn to rinse turn back on for about 20 sec then turn off then turn multiport back to filter then turn back on

There are so many models of what may appear like the same motor, but the internals may vary???? If you can take off the cover & look at the capacitor itself, that is your best bet. You need to at least be at the equivalent of the same range of MFD!!!! Example 72 - 93 MFD! You can go slightly higher, but not by much! If you can't read what you currently have, then contact Pentair directly. They may be able to assist you with the right information. Here is a link for your assistance... Contact Pool Expert PENTAIR

sounds like a priming problem. look at the check valve in front of the pump in the suction line. sounds as if it is loosing its prime so you don't have enough water close enough to the pump to get it primed.

sounds as if pump has stuck start winding switch , try giving Motor not the pump a sharp knock with a rubber mallet when you 1st turn on , this might jar it loose if not a new motor might be needed , if motor was larger then say 2hp then id say get it fixed at a motor repair shop due to cost saving but smaller sizes it's not worth it most times

make sure all wiring is good loose wires can comprimise the life of a motor

make sure basket is full and check the incomming union make sure tight also make sure top seal is ok

sounds like something is broken in the filter take off top shop vac out sand look to see if the laterals are broken if so replace and refill

You should be able to open an air relief valve at the top of your filter

Sounds like a thermal prolem. Is the fan plate on the motor? Are all the vanes free of obstruction, especially under the wiring box, once found a dead mouse under one on a pump that where the thermal cut out is usually located.

This is a air leak on your suction side between the skimmer and the pump. You will not see water in the yard on the suction side usually, only the return. It is usually just the fittings around your pump or the seal around the pump lid, check those first and make sure you do not have a loose clamp or a damaged or dry seal. If that is not it then call in your local service guy to determine where the leak is. They will most likely pressurize your suction line to find the leak. Hope that helps. Time to Open the Swimming Pool

The side with the 1 1/4 inch (about) indention encircling the shaft hole faces toward the basket. That is where the seal is set. The other side of the seal sets into the impeller with the white side showing outward.