T&T: Debugging an electrical problem

[Al Thomason]

Well,

You sure have narrowed things down.  As you reported:  It is not the shore 
power feed as you measure 240v at your onboard electrical panel under load. 
It is not the stove, nor wiring  to the stove as you say it functions 
properly when on the generator.  That really leaves issues around how the 
shore power / generator switching and your onboard distribution panel is set 
up.

I suspect this would be too difficult (as there are just so many variables 
involved in your boats specific setup) to diag remotely.  But it sure seems 
that the issue is in the dist panel.  One idea (I think already suggested) 
is that perhaps the panel is somehow only supplying 110v to your stove when 
on shore power.  You could try to measure at the stove its self.  Other then 
that, it seems the panel is where you need to focus..

Good luck and be careful!

-al-




----- Original Message ----- 
From: "Greg Bradley" <g_bradley at yahoo.com>
To: <trawlers-and-trawlering at lists.samurai.com>
Sent: Monday, July 02, 2007 11:38 AM
Subject: Re: T&T: Debugging an electrical problem


> -- UPDATE -- 
>
> Yes.  I measured the load at 240V with the stove on and off and it
> didn't seem to make any difference.  It read 240V the whole time, but
> the stove still didn't come up properly on shore power.
>
> As far as the AC units.  I would assume they are 110V but I don't know
> for sure.  They were advertised by the previous owner as dual 16,000
> BTU A/C units with Heat.  I was able to dig up some user manuals and it
> looks like the units have specifications for 115V-240V 50/60Hz.  The
> specs had two tables listing amps at 115V and amps at 240V.  So, I
> guess it will operate on 115V or 240V or whatever it can draw.  Does
> that sound right?
>
> The refrigerator is also 115V and it has been operating fine as well.
>
> Thanks all for helping.  I'm learning alot.
>
> Greg...
>
>
> --- Al Thomason <thomason.al at gmail.com> wrote:
>
>> I think you mentioned that you were able to measure the Shore Power
>> at 240v
>> (lucky you, not to have a 208 volt supply!).
>>
>> Was that under load with the stove on?  If not, would try that and
>> report
>> back.
>>
>> -al-
>
>
>
>
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