Thank you Gerry for your help. Deconnecting the controler for the solar panels permited to recharge the battery with 120V in a camping.
Since I've found a new controler in Jacksonville for the solar panels the problem seems to be eliminated. I'm waiting for sun...now it is rain in Manatee Spring State Park.
Pierre
--- In tabtrailers@yahoogroups.com, "Jerry Jones" <jjerryj@...> wrote:
>
> Pierre, there are many links in the electrical path, but based on what you've reported, it appears the campground shore power is charging the battery via the converter, so that eliminates a lot of possible problems, but points to a possible problem with your tow vehicle charge system.
>
> First, do this--disconnect from shore power, remove the battery ground lead and set it aside. Then hook the wiring harness to the tow vehicle and start the engine. Check to see if the lights will work in the trailer. If not, the voltage from the tow vehicle is not getting to the trailer. That could mean a blown fuse or missing charge relay in your tow vehicle, or a bad connection in your connectors from the wiring harness to the tow vehicle.
>
> The regulator you mention is the regulator for the solar panels? If so, and that is the only thing involved with the low voltage, then that may indeed be the whole problem.
>
> Good luck.
> Jerry J
>
>
>
>
>
> ----- Original Message -----
> From: Pierre
> To: tabtrailers@yahoogroups.com
> Sent: Saturday, January 29, 2011 5:57 PM
> Subject: [tabtrailers] Re: Furnace, battery and Norcold
>
>
>
> Thank you Jerry.
> I did what you suggest and at he auto part store they told me my battery is OK. I have to trust them, because I was ready to buy a new one and they told me it was OK.
> I'm now in Santee State Park in South Carolina on a site with electricity. After about 2 hours connected on 120, I tried to start the furnace and it worked well. The voltmeter stayed over 12. And I tried the Norcold. It also worked fine. I could start the propane way. So the problem was my battery wich was too weak, but the seller at the auto part shop told me this morning the battery was OK.
> One thing I didn'nt mention on my message is that I installed 2 solar panels last fall, but didn't had the chance to try the T@B with this new improvement until now.
> This morning, after my battery has been tested, I disconnected teh regulator (Morning Star 10 A) from the battery to see what could change. The result was that I could make the furnace working without seeing the voltmeter going down to 8,5 like the day before.
> I now suspect that the source of my problem would be teh reulator.
> If you know a place where I could make it tested on my way to Florida, I would appreciate.
> Thank you again for your reply so quickly.
> Pierre
>
>
> --- In tabtrailers@yahoogroups.com, "Jerry Jones" <jjerryj@> wrote:
> >
> > Pierre, the battery will show a lower voltage under load than when it is disconnected. To find the true battery charge, it has to be disconnected from all loads and left for some period of time, at least several hours. A faster way of checking it would be to stop by an auto parts store and ask them to check it for you. The devices they use can check the battery quickly.
> >
> > If your battery is not being charged adequately, it may be a problem with a connection to your tow vehicle. Put a meter across the battery with the engine running--the charge voltage should be above 13.5V, but not greater than 14.5V.
> >
> > Good luck
> > Jerry J
> > ----- Original Message -----
> > From: Pierre
> > To: tabtrailers@yahoogroups.com
> > Sent: Saturday, January 29, 2011 10:08 AM
> > Subject: [tabtrailers] Furnace, battery and Norcold
> >
> >
> >
> > We left Québec Thursday and went through New-York, Baltimore and Washington, DC just after the snow storm. We were in a Rest Area in South Carolina last night. Quite cool and needed a good heater. When I started the furnace, the voltmeter of the battery indicated less than 8.5. I'm wondering if it is an indication of a problem with the furnace or the battery. When I turned off the furnace, the voltmeter went up to 12.3. I'm planning to change the battery today for a better one. Some body have an idea?
> > An other problem is with the refrigerator. I started it on propane. It worked well but stopped after a few minutes. I observed that it stopped almost when I started the furnace.
> > I'm wondering also if it is a problem with the electronic ignition of the frig or with the battery which can't do the job...
> > In spite of these little ''problems'' we appreciate to be in the southern states with our T@B.
> >
>
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