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Old 05-27-2013, 08:15 AM   #1
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breaker tripping for pool pump


I am having problems with the breaker tripping for my Hayward pool pump. Ran great last year. Pump is about 4 years old. It will run for about 10 to 15 seconds and then the breaker trips. Replaced the breaker with the same results. Pump motor is not hot and seems to be running normal when it trips.

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Old 05-27-2013, 09:08 AM   #2
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breaker tripping for pool pump


Is the breaker a GFCI. It could be water in the pump. The pump motor could be bad now even though it was fine last year.

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Old 05-27-2013, 01:11 PM   #3
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breaker tripping for pool pump


Try running pump valved off.(No load).
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Old 05-27-2013, 03:08 PM   #4
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breaker tripping for pool pump


If the breaker is not a GFCI, then the problem may be the centrifugal switch which disconnects the starting winding. If it fails, the motor an draw very high current and trip the breaker. If it's a GFCI breaker, the problem is probably a ground fault and the motor may need to be replaced.
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Old 05-27-2013, 05:07 PM   #5
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breaker tripping for pool pump


Quote:
Originally Posted by mpoulton View Post
If the breaker is not a GFCI, then the problem may be the centrifugal switch which disconnects the starting winding. If it fails, the motor an draw very high current and trip the breaker. If it's a GFCI breaker, the problem is probably a ground fault and the motor may need to be replaced.
My thoughts as well.

Usually if there's a ground fault in the motor, the GFI will trip instantly, but not always.

If the start winding is not de-energized when the motor is up to speed, it'll usually trip a breaker before the overload.

Centrifugal switches are notorious for getting stuck after a motor has not been run in a long time. Especially an open motor that is run outside.

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