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Genset transfer switch
Posted: August 29th, 2019, 10:01 pm
by buster53
On my 2001, 356, I have an automatic genset/shore power transfer switch that I'm pretty sure is located behind my 120v breaker panel. My boat will not power up electrically using shore power, but will running the genset. I'm almost certain the transfer switch is stuck in the genset position and will not switch over. In the morning I'm going to open up the panel to see if I can find the problem.
Could this be as simple as hitting it with a shot of WD-40 or is it more complicated? I've never opened this panel before or know what the switch looks like, but I'm guessing I can figure it out.
Re: Genset transfer switch
Posted: August 29th, 2019, 10:55 pm
by tomschauer
Buster, the auto transfer relays are normally closed to shore power. When you start the genny you should hear the relays clicking, that is the transfer to genny power. If you hear the clicking its most likely not the relays. Did you check the breakers at your shore power inlets? They should be directly above your cord connection on the boat.
Re: Genset transfer switch
Posted: August 30th, 2019, 8:33 am
by bud37
I apologize for this....but , make sure the dock power is on first and go from there......if you have already ,beat me with a wet noodle....
Re: Genset transfer switch
Posted: August 30th, 2019, 8:57 am
by buster53
Checked and double checked shore power.
When I turn on my genset, I don't hear the usual chatter.
Second question, does Carver still use these auto transfer switches? I've been having some engine work done and picked up my boat from the yard it was being worked at yesterday. When I got back to my marina is when I noticed the problem. I called the boat yard owner to tell him my problem and he acted like these auto switches are unusual and haven't been used in years.
Re: Genset transfer switch
Posted: August 30th, 2019, 9:13 am
by buster53
tomschauer wrote:Source of the post Did you check the breakers at your shore power inlets? They should be directly above your cord connection on the boat.
Where my shore power cords are connected to the boat, I don't see any kind of switch or breaker. Is there a switch somewhere between the connection and my breaker panel? I'm just not seeing anything.
Re: Genset transfer switch
Posted: August 30th, 2019, 9:16 am
by bud37
I have an 01 and it has the chattering switches.....Fyi...there was a thread or two a while back about these switches with pics, how they work and all...might be of a help to you...they are behind your panel.....don't open with any power on.
Just saw your post...there should be breakers near your shore power inlets, square boxes with covers on them. In mine they are in the cabinet at the stern with the power cord plugs, cable etc. Maybe your boat is a bit different.
Re: Genset transfer switch
Posted: August 30th, 2019, 9:24 am
by bud37
Just looking at the manual for a 2002 and it may just be the breakers at the panel......lets look a little further, so disregard the info about the breakers at the stern for now.....sorry.
Have a look at steps 10 and 11 here, there does in fact seem to be breakers in the shore power source box....pgae 56...
https://carveryachts.blob.core.windows. ... _02-v1.pdf
Re: Genset transfer switch
Posted: August 30th, 2019, 9:26 am
by buster53
Yes, I have opened my panel. I don't see anything wrong. The switches seem to be in good order as I can move them on to off or however you can describe it. They don't seem locked in one position or the other.
I'll search for previous threads.
Thanks guys
Re: Genset transfer switch
Posted: August 30th, 2019, 9:45 am
by bud37
buster53 wrote:Source of the post Yes, I have opened my panel. I don't see anything wrong. The switches seem to be in good order as I can move them on to off or however you can describe it. They don't seem locked in one position or the other.
I'll search for previous threads.
Thanks guys
Have a look at my last post above, small edit there, may help.
Re: Genset transfer switch
Posted: August 30th, 2019, 9:50 am
by buster53
Ok, found the switches at my shore power inlets. PROBLEM SOLVED!!
Thanks guys.
In addition to the 2 covered connectors for shore power, I had 3 more, one for TV cable connection and I assumed 1 was for a phone connection and didn't think about the 3rd. Anyway, number 2 & 3 covered my breakers