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Pump motor quits before getting up to speed

Pump motor quits before getting up to speed

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  #1  
Old 10-14-19, 09:58 AM
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Pump motor quits before getting up to speed

I have a hayward 2 speed pump 1-1/2hp. It was tripping the breaker when trying to start. I thought it was the running capacitor and replaced it. Now it no longer trips the breaker but the motor quits before it gets up to speed. It is a 2 speed motor and reacts the same on either speed. What would cause that. The motor is only a little over 1 year old.
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  #2  
Old 10-14-19, 01:35 PM
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Motors this size usually have a centrifugal switch (located on the motor shaft ) to remove the start winding after the motor gets to 75 % running RPM. If the motor does not get to 75% within a second or less or the centrifugal switch isn't opening, the breaker will open due to the high current through the start winding. Remove the motor from the pump still connected electrically. If the motor runs without tripping the breaker, the problem is the pump. If the breaker still trips the problem is motor and still possibly the pump. Call a pool service if this is beyond your capabilities.
 
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  #3  
Old 10-21-19, 07:35 AM
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I have never found a pool service company that was interested in fixing a pump motor. For $800 they will replace a motor and make a lot more then they would messing with a motor. I might add that when out pool was first installed the company hired 3 different subs to wire the pump and lights. After 3 different so called technicians I finally wired it myself. Yes, I am a retired electrical contractor that at one time did work for a pool company. That said motors are not my specialty. With larger motors I used to take them to a shop that did nothing but motors and they don't mess with small motors do to the labor cost . So yes, motors are over my capabilities but I have never met a pool service company that was more qualified than I am.
 
  #4  
Old 10-21-19, 02:32 PM
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Why are you assuming the motor is bad without removing the motor and testing as I posted earlier?
 
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