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Old 08-26-2013, 04:33 PM   #31
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Originally Posted by OldCoot View Post
Do you know if the Norcold frigs have the same? We have a Norcold and I haven't found a switch.
BTW, what is the climate control supposed to do?
Sorry Neil, I don't even have a manual for a Norcold
The thread is Dometic so I was pretty sure about the climate control post.
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Old 08-26-2013, 04:36 PM   #32
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Originally Posted by awwall View Post
From the OP's original post he stated that when he left, going home, the frig was working on propane. Upon arrival it was not and battery was dead.

1. Battery disconnect was not disconnected. Frig would have never worked on propane
2. Battery dead in this short of time indicates bad battery
3. Charging from truck should have kept frig going, unless: There is no charging coming from truck or excessive draw from battery blew supply fuse in truck.

I may be wrong, but everything points to a bad battery.

Just my 2 cents
I was 99.9% sure too it was a bad battery but appears I was wrong!

Battery was fully charged this morning even at 1.25 amp charge rate by battery tender. Carefully checked all fuses & breakers in control panel. Checked the F150's 7 pin wiring slots 1-4 with meter as recommended. Nothing, with key even in accessory position. Ran truck, checked again and full 12 volts measured thankfully.

Next, plugged in trailer and attempted to check charging from trailer, no battery installed. At first, at battery cables, with red probe on + and black probe on - cable, meter needle didn't move. Feeling helpless that trailer controller was toast in some desperation scratched around with probe on + cable and needle magically, but briefly jumped to 12 volts! Cable ends looked OK but with the help of some steel wool discovered those cables weren't supposed to be a nice shade of grey! Look nice & clean now, like copper color (lol). Constant 12 volts reading on the meter now so feeling I had at least fixed part of the problem.

Unplugged trailer from house, installed battery (after cleaning battery posts too) and tried to start fridge on propane only setting with no 120v. Started with one click like a charm!!!! Ran it for 45 minutes on just trailer battery, with no problem. Problem appears to be solved, although significant discharge of trailer battery over the weekend (likely wasn't charging for a few days) is always a possibility. It really was discharged significantly I imagine. However it recharged easily overnight so may be OK I hope.

Hope I'm right, but it all makes sense if the battery cables and posts were more corroded than I realized it would fit the symptoms I experienced. Learnt how to check/confirm charging levels from truck and from trailer of the trailer battery thanks to those who posted steps.

Also emphasized for me to think it through rationally and/or see if you can eliminate any possibilities easily. Checking the charging of trailer battery in hindsight logical first step!

Sorry for long post, maybe it will help another forum member sometime. Amazed at all the help I received within a day. Thanks to all!

Have another issue about tire alignment but will start a new thread!
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Old 08-26-2013, 04:40 PM   #33
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Sorry, had meant to emphasize if battery gauge in trailer reads low it could also mean bad or corroded connection at the battery, not necessarily a bad or discharged battery.
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Old 08-26-2013, 04:54 PM   #34
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Glad you tracked down the issues of no contact.

Your Ford truck 7 point connection seems to be working fine.

Now.... take the batt off the trailer completely and recharge to full, then take it to a auto store to where a 'load' tester can test the sustainability of the batt. being 'low' for a long time and not charging may have 'shot' the batt. No one should charge you to load test a batt.
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Old 08-26-2013, 05:22 PM   #35
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Originally Posted by Brother Les View Post
Glad you tracked down the issues of no contact.

Your Ford truck 7 point connection seems to be working fine.

Now.... take the batt off the trailer completely and recharge to full, then take it to a auto store to where a 'load' tester can test the sustainability of the batt. being 'low' for a long time and not charging may have 'shot' the batt. No one should charge you to load test a batt.
Shall likely take it to RV dealer nearby who sold me the battery last Fall for a "load test". Thanks again for great advice!
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