With power to my circuit boards, I can turn lights on, but the moment I push the pump button on the panel the 12 amp Intellichlor circuit breaker automatically trips, there is a short hum from what sounds like the left side of the panel where the main breakers are and then the 12 amp breaker (one of the 4) located at top right of the panel trips. There are no burn marks on either circuit board, in fact I replaced the surge board thinking that was the problem, the transformers appear ok and there is no tripping of the large main breakers. I had plugged something that takes power into the light GFCI, and shortly after this tripping problem developed. Is it possible that a bad GFCI occurred by using that plug for power and is now causing the pump / swg 12 amp low voltage breaker to trip ?
So frustrated, any help appreciated
So frustrated, any help appreciated

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