well pump breaker tripping...
I did some quick thread searches and some googling, but need to ask for some advice in parallel with other efforts to solve the problem, (i.e., calling local well installer).
Well pump installed a few months ago, late March 08. Ran fine, filled pool (6000 gallons). Normal daily use for veggine garden and laundry.
It is a Gould 7GS20. It was wired into the main panel below my meter, outdoors on a pole. Everything in conduit.
Well, this week, coincidently septic system is being installed. Yesterday they successfully used the hose to fill the septic tank, maybe 1000 gallons +/-. Today they used the hose to wet down the outer base of the septic tank as they backfilled. My son was taking a shower at the same time and the water quit flowing. I checked the panel and the 30 amp breaker. It was tripped. I reset and it seemed OK for a moment but then it again stopped flowing. This time I payed more attention and watched the breaker closely. I reset. A few seconds later I heard a buzzing sound and then it tripped. I called the well guys and explained it, they had me turn the detroit pressure switch from auto to off and the turn the breake ron, it stayed on and did not trip. None of the overload trips in the pump control box at the well head seem to have tripped. i pushed the 2 red buttons on the bottom of the box but they seemed to not have tripped, no resistance felt as it would maybe show during reset. he said mayb it is the breaker, THQL2130 GE. I ran to big box orange store and bought 2 more. Killed power, check with a meter and swapped out carefully, after I marked bad suspect one with an "x" so not to get them confused. Still doies the same thing and I carefully watched it all with the panel cover off and the trip is accompanied by a fast flash behind the 30A breaker. No smoke seen, no deytection of melting or burning. Just a microsecond bright flash.
ANyway, I have left a voicemail and phone message fore them to get me a service call ASAP tomorrow. My veggie garden is looking so good, I'd hate it to all die....