1989 Sea Ray 220DA Shore power Not working.

[nscrfan3]

I was looking for any help with trying to figure out every time I Switch to go to Shore power on my Panel you hear a buzz and then it snaps back like a short is in the system. I had a friend check it out and he feels it's in the battery charger itself. It's a Newmar RM-20. Any suggestions?
Thank-You

 

[Thalasso]

Re: 1989 Sea Ray 220DA Shore power Not working.

Turn the charger off in the panel. I dont think it's the charger though.Turn every breaker off. If it doesn't trip start turning on breakers until it trips and you will know what circut it is.My guess is you are going to find a bad shore power plug. Probably on the boat. Look at the ends of your cord and see if there are any burn't marks.

 

[nscrfan3]

Re: 1989 Sea Ray 220DA Shore power Not working.

Thats exactly what we did,But we have to switch the panel first before we can check every switch.When it's on DC Everything works fine,then flip to shore power and it justs buzzes and trips back. The Cord is new and I'm using a Marinco adaptor into an extension cord.

 

[shrew]

Re: 1989 Sea Ray 220DA Shore power Not working.

Your panel should have a main breaker and then a dedicated breaker for each circuit (e.g. Charger, Fridge, Outlets, etc.). Turn off all the breakers, including the main. Then turn on JUST the main, then turn on one breaker. Turn that breaker off and turn on the next breaker. Continue one breaker at a time. I suspect it is the main breaker that is tripping. I'd remove and replace ALL of the breakers, which will most likely resolve the issue. Something is causing enough draw to trip teh breaker. In many cases it is corresion on the breaker itself.

 

[Thalasso]

Re: 1989 Sea Ray 220DA Shore power Not working.

Your panel should have a main breaker and then a dedicated breaker for each circuit (e.g. Charger, Fridge, Outlets, etc.). Turn off all the breakers, including the main. Then turn on JUST the main, then turn on one breaker. Turn that breaker off and turn on the next breaker. Continue one breaker at a time. I suspect it is the main breaker that is tripping. I'd remove and replace ALL of the breakers, which will most likely resolve the issue. Something is causing enough draw to trip teh breaker. In many cases it is corresion on the breaker itself.

That is what i meant to say. You described the procedure better.