pump blows GFI Breaker when when wet outside.

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Old 05-26-10, 07:33 AM
M
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pump blows GFI Breaker when when wet outside.

Just turn on my pool filter after the winter season. I was working fine for many years.
It is a 1HP super pump on a 220v 20a GFI breaker. The breaker is in the garage panel. The filter came on no problem it is on a timer on at 10am off at 8pm. Friday and Sat. all ok. Sat .night it rained and Sunday morning the motor did not turn on and the GFI breaker was tripped.
I check all wires made sure they were tight and clean . Turned on the motor without the external ground wire and the motor came on. Touched the ground wire to the motor and the GFI breaker went into reset.
Ran the motor a few minutes no problem .put the ground wire back on after the motor warmed up about 10 to 15 minutes and it held . Worked all day with out any problems. It rain again Sunday night and the same problem Monday morning. Do I have a GFI breaker problem or a motor problem??
 
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Old 05-26-10, 07:39 AM
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I think your breaker sounds like it is working as designed. I think your issue is water intrusion somewhere and creating a better path for any leakage current.
 
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Old 05-26-10, 04:59 PM
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Just turn on my pool filter after the winter season. It was working fine for many years.
You didn't say just how old the pump motor was. It could be about time to replace it.
 
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