Question for our EC friends. Im on a Yacht and when the captain powers up the LV underwater lighting system we get an electrical issue at the beverage cooler (you get a shock when you touch the cooler). Both the cooler and the lighting transformers are powered by the same 120V circuit. So something is happening between the primary side of the LV transformers and the cooler unit. They have tried to run a separate isolated ground back to the genset and this had no effect. Any help would be appreciated.