No Power To Interior Via Battery

Sgtjohn

Chan, I'm in San Antonio now and it's raining.  I'm going to be here at least a week and as soon as the rain subsides, I'm going to check the ground.  I can't get out of the rain, Pensacola, Gulfport MS, Beaumont TX and now SA!

ChanW

Sgt, you ought to be able to test it with an ohm-meter (multi-meter), but I couldn't tell you what the readings should be. It might be easier to simply check the connections to be sure they're clean.

Ideally, the 7pin on the TV should have a heavy wire (#10ga or heavier) going directly back to the TV battery terminal.

Then check the Tab ground from the 7pin to the battery - actually I don't know if there's a Tab frame ground.

Hope your rain clears up, our snow just started, here in Buffalo... Finally, no mud!

Nomad

ChanW - There is a T@B frame ground as noted above.
SgtJohn - Rain - Sounds like my trip back northe last spring - Rain acriss NM and KS - Three weeks wirth - Feel your pain.

Michigan_Mike

I agree with Chan....  I would take the cover off the trailer plug near the tongue and check all connections there, as well as the receiver plug on your tow vehicle.  Clean up any corrosion in these areas as this is a good spot for moisture which is a means of corroding connections.  It could easily be just a loose connection under these areas and some corrosion.  

ChanW

SgtJohn, to be clearer I should have specified the ground wire from the 7pin on the TV to the TV'S negative battery terminal should be 10ga and continuous (as should be the 12v supply wire). Some installers might take a shortcut and simply ground it to the frame of the TV, which makes for a possibility of poor connections.

Sgtjohn

And that supply wire should have an inline fuse!  Very important or the bacon could fry.  Tomorrow is cloudy according to the forecast so I'll take a look.

Sgtjohn

I remember now that I in "mid-sleep" shorted out the Carbon Monoxide detector and blew a fuse on the converter.  I replaced the fuse but the inline fuse failed to blow so I think that I fired that portion of the converter.  I ordered a new converter from LG and will install in in the next few days.
Incidentally, the T@B is in the garage hitch first on the cut-down wheels so I can't get the TV in front of the T@B to hook up to 12 v.  So, I configured a spare 7-way connection and hooked ups  12 v charger to get the power to the trailer.  
I note that with the charger connected and powered up that I only have power to one of the two positive lines leading to/from the battery.  I'm thinking that the one that doesn't have power will have power and that will indicate that the TV will then charge the T@B battery.

Nomad

Let us know how that converter exchange goes - pics maybe.
I have a bad one. Haven't gotten at installing the new one yet. Hasn't been critical since I can't remember the last time I had a hookup so have procrastinated.

jkjenn

PXLated said:

Let us know how that converter exchange goes - pics maybe.
I have a bad one. Haven't gotten at installing the new one yet. Hasn't been critical since I can't remember the last time I had a hookup so have procrastinated.

That's been a long time now!

Nomad

Jenn - Ya - If you don't do hookups, the coverter, battery charging feature doesn't come into play so it's real easy to procrastinate. I've become a pro :-)

ChanW

And you have nice sunny days... Must be nice to have alternatives!

jkjenn

ChanW said:

And you have nice sunny days... Must be nice to have alternatives!

Lol, so true. I think we had an hour of sun yesterday. Back to grey, today. When I fly out west, it is such a drastic change it takes my eyes quite a while to adjust. Nit so bad when I drive.

Sgtjohn

Changeout of the converter is complete and all systems appear to be working as designed. I took a few photos and will post them as soon as I figure out how to reduce the super-size photos.

Nomad

SgtJohn - How long did it take ya?

Sgtjohn

It took about 2 hours roughly.  Not difficult at all.  In lieu of photos, I used masking tape and numbered the wiring so as not to connect the wrong wire somewhere and have a problem.

Nomad

Cool - That's what I was thinkin of doin - Looks pretty straight forward.

jkjenn

Sgtjohn said:

It took about 2 hours roughly.  Not difficult at all.  In lieu of photos, I used masking tape and numbered the wiring so as not to connect the wrong wire somewhere and have a problem.

I used address labels to label the wires when I did my battery switch.

Ratkity

And, for us OCD people.. may your label-maker never fail (or your backup one).

Verna

Ratkity said:

And, for us OCD people.. may your label-maker never fail (or your backup one).

Hummmm........I thought I was just helping myself for next year by labeling the valves and pipes in the Alde area.  Me, OCD?  Naw....never......well, maybe a bit here and there.....the backup label maker is at home, but as my sister says, there's a Walmart within a 100 miles or so!

Nomad

I once color coded some wiring for a friend - turned out he was color blind :-(

Michigan_Mike

I took a picture of the T@B plumbing "camping mode" and stuck it inside the photo vault on my iPhone for future reference.  I have other documents I keep stored on the iPhone too pertaining to the T@B and as they say, "a photo's worth a thousand words"  

Works for me anyway!