Dolphin power supply keeps tripping GFI switch

by El

I have a brand new power supply, only used it last season for about 2 months. I've recently opened the pool and when I plug in the power supply it trips the switch. What is the problem?

ADMIN REPLY: Tough one. Does it work on a regular outlet? Problem could be in the GFI itself. Plug another appliance into the outlet and see if it trips.

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