Pump shuts off

chrisfrank

Member
May 23, 2014
6
maryland
I picked up a used (not old) pump motor today to replace a seized up one. Was told that it works, but when I start it, it runs normal then shuts down a few seconds later. Will restart after a couple minutes. Seems to run normal when running. There's an audible click when it shuts off. I'm concerned its overheat protection, but it doesn't feel warm at all.
3\4 hp pump
 

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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
35,112
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Your signature says you have a 1.5hp Hayward pump. The motor is 3/4HP. You are probably overloading the motor with the pump having a 1.5HP impeller. The motor is mismatched to the pump.

Change the motor or change the impeller.
 

chrisfrank

Member
May 23, 2014
6
maryland
Your signature says you have a 1.5hp Hayward pump. The motor is 3/4HP. You are probably overloading the motor with the pump having a 1.5HP impeller. The motor is mismatched to the pump.

Change the motor or change the impeller.
I thought that, but my last pump was actually a 2 speed. It ran at 0.5 or 1.5 hp, so I assumed that it could handle it. If that not correct?
 

JamesW

TFP Expert
Mar 2, 2011
29,448
I thought that, but my last pump was actually a 2 speed. It ran at 0.5 or 1.5 hp, so I assumed that it could handle it. If that not correct
You're running at full speed, so you need the higher hp.

The lower hp only applies if you are running at low speed.

Do you have a picture of the original motor label?

What is the supply voltage?
 

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JamesW

TFP Expert
Mar 2, 2011
29,448
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