Pool pump motor

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01-25-15, 07:36 AM

Geochurchi

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Pool pump motor

Hi All, 2 HP pool pump motor on a Sta Rite Max E Pro had a blown starting capacitor,pump would run for about 5 seconds and trip the breaker,I replaced the capacitor and nothing changed,runs for about 5 seconds and trips the breaker.
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Geo

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01-25-15, 07:59 AM

the_tow_guy

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Is it getting up to speed before tripping or is it struggling to start? If struggling to start I would check the little contacts that engage/disengage centrifugally when you switch on. Just had to clean the contacts on my table saw motor yesterday. Thought maybe I had a bad capacitor, but after pulling a piece of emery cloth through the contact points, it spins right up.

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01-25-15, 12:01 PM

PJmax

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I removed your other post in the pool section. We'll concentrate on this one.

I agree.... it does sound like the centrifugal starter switch is not releasing.

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01-25-15, 02:08 PM

Geochurchi

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Motor starts for about 5sec then trips on GFCI, JUNK IT RIGHT!
Geo

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01-25-15, 03:38 PM

Tolyn Ironhand

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Trips the breaker or the GFCI? In your previous posts you said breaker.

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01-25-15, 03:44 PM

Geochurchi

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I was given the wrong info,it trips the GFCI, they said it trips in about 5 seconds and I thought that was a bit quick unless there was a direct short.
Geo

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01-25-15, 03:52 PM

PJmax

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Is that a combination GFCI breaker ?

If it were a ground fault issue it would probably trip instantly. I'm still going with an overload from the motor start circuit.

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01-25-15, 04:03 PM

Geochurchi

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It's a GFCI breaker,not sure what a combination GFCI breaker would be.
Geo

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01-25-15, 05:30 PM

Tolyn Ironhand

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I don't know what a combination GFCI is either.

AFCI yes, GFCI no.

Quote:

I thought that was a bit quick unless there was a direct short

GFCI does not trip on a hot to neutral short, only on a ground fault. I would start by swapping out the GFCI. I had a service call about a tripping GFCI on a microwave similar to what you are experiencing and a new GFCI fixed the issue.

Last edited by Tolyn Ironhand; 01-26-15 at 04:11 PM.

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