I am having a problem with shore power. When I connect to shore power on the B side of my panel, everything is OK (almost). On the A side, I am getting nothing. The B side is protected by a breaker (both hot and neutral wires) in the aft portside cockpit locker, but I can't find a breaker for the A side anywhere outside the main panel at the nav station. I read that some Hunters have isolation transformers, and I wonder if that could be my problem. However, I can't seem to find anything that looks like a transformer in the obvious places. Does anyone know (1) whether the 405 has isolation transformers, and if so, where are they, or (2) what other possibilities are there for a broken circuit? If I end up having to thread a new cable from the shore power inlet to the breaker panel, what is the easiest route? This is something I've never done. Thanks! Richard
Isolation Transformers on 1997 405 Legend?
- Thread starter AgingBull
- Start date
I can't reconcile the "A" and "B" sides, but on my 1997 h40.5 I have two shore power inlets on the starboard stern. I also have a single breaker inside the starboard stern lazarette near the battery switch that protects the main panel with all of the AC circuits except the air conditioners. The air conditioners are powered from the second shore power input and have a separate power panel above the main panel at the Nav station. I believe that the lack of a breaker for the air conditioner input in the stern lazarette is because the air conditioners are an option.
I have no isolation transformers and I do not know where they could be located if present.
To solve your problem simply requires some basic trouble-shooting. First verify that you actually have power at your shore power input connector. Swap power cords to verify. Then open the main panel and verify the presence of AC voltage at the two input power lines. Be careful, these are lethal voltages you are working with. Once you find out where the power stops, then you have found the problem.
If you need to run a new power cable (this is highly doubtful), all of the cables are located in a wire run between the outside wall of the starboard cockpit locker and the hull. I have run many wires there and have used a wire snake. I also had to cut a hole in the back of the locker to facilitate the wire pull. But it is very unlikely that you will need to replace this wire. The fault is likely with connections at either end or with a faulty breaker.
Take your time. Make notes as you go.
BTW, what did you mean by "When I connect to shore power on the B side of my panel, everything is OK (almost). " Almost?? Please elaborate. on "almost".
I have no isolation transformers and I do not know where they could be located if present.
To solve your problem simply requires some basic trouble-shooting. First verify that you actually have power at your shore power input connector. Swap power cords to verify. Then open the main panel and verify the presence of AC voltage at the two input power lines. Be careful, these are lethal voltages you are working with. Once you find out where the power stops, then you have found the problem.
If you need to run a new power cable (this is highly doubtful), all of the cables are located in a wire run between the outside wall of the starboard cockpit locker and the hull. I have run many wires there and have used a wire snake. I also had to cut a hole in the back of the locker to facilitate the wire pull. But it is very unlikely that you will need to replace this wire. The fault is likely with connections at either end or with a faulty breaker.
Take your time. Make notes as you go.
BTW, what did you mean by "When I connect to shore power on the B side of my panel, everything is OK (almost). " Almost?? Please elaborate. on "almost".