I came to my Catalina 28 after two weeks at work. Everything was working ok when I left. When I came back to the boat, outlets, water heater, and battery charger are not working. I am connected to the shore power and there is a blue light on the boat connection. We tested and we have power to the control panel breaker. but that is where the power stops. I purchased a new outlet, but that did not solve the problem. What is my next step.