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Old 10-25-2015, 02:26 PM   #1
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Exclamation Electric problem please help urgent.

So i live in my jayflight, its been raining pretty hard for the past few day idk if thats caused this issue or not. So this morning i got up was making breakfast turned off my fan/ac unit went to the fridge and noticed the light didnt come on, also the "on" display light wont come on. I went to see if the fan/ac would come back on and it wouldnt. Also for some reason my fridge wont switch to propane im assuming because some elecrical part if failing to let it. So now my fridge and everything that has to do with the thermostat ac/fan/heat, and the 3 main room ceiling lights wont work( the ones that even work on the battery without amps hooked up) but every other power works. I checked my fuses and breakers and everything seems to be in order. Any help would be awesome i would like to save my food.
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Old 10-25-2015, 02:32 PM   #2
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Did you check the breaker at your power source and not just the trailer? Did power cord come out? Just throwing out some quick thoughts.
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Old 10-25-2015, 02:35 PM   #3
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Yes i did all the usual quick checks. Like said all my other power sources work. Just not the things i listed.
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Old 10-25-2015, 02:41 PM   #4
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Sounds like you lost your 12 volt dc system. I'd say your battery is dead and the converter quit producing 12 volts.

If you have a voltage meter, check for DC voltage at the battery, the with trailer plugged in to A/C power. Should read around 13.5 VDC if the converter is working. If it quit working, the battery would have drained, and any DC systems wouldn't work, including the thermostat (uses DC for control voltage), the refrigerator, and lights.

Go out and by a couple of pounds of dry ice and put it in your freezer and fridge for the time being. That should save your food.
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Old 10-25-2015, 02:42 PM   #5
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So your pure AC stuff is working, but the 12V stuff is not? Fridge still needs 12V to work on propane. I would check that your inverter is okay, or if the main DC fuse is gone (not the breakers). There is another fuse at the battery, but that shouldn't matter if the inverter is supplying power from AC mains and those appear to be working.


Note, considering the rain, there may be a problem in the 12V system that blew the fuse in the first place. It's always a good idea to understand why it blew before just replacing it. Is any of your 12V power system waterlogged? Battery case filled with water?
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Old 10-25-2015, 02:43 PM   #6
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Check your ground. That was my problem. The connection where your battery is bolted to the frame is where mine was corroded and the connectors were not tight.
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Old 10-25-2015, 02:45 PM   #7
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It would be really helpful to have some schematics that tell you what is on which circuit.

Don't know how you checked you fuses/breakers, but sounds like it could be a loose wire or ground issue if not the fuse. Just don't assume anything and start with your power sources, then work downstream.

Doesn't sound like you had a short that blew a fuse, but that something was loose or corroded, as in electrical inconsistency.

If you are in NorCal, would be willing to help troubleshoot.

Some of what you wrote is confusing as I think you are using your words loosely, like every other power works...without amps hooked up...not sure what that means.

Regardless, every year it is a good idea to be sure all your electrical connections are clean, tight, and dry.
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Old 10-25-2015, 02:56 PM   #8
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What i mean by other power works is that every other electrical thing besides my ac unit fridge and the 3 ceiling lights. My battery guage says its full power but would it say that because im hooked up? I live in east texas. How do i troubleshoot the battery unit and ground i dont know too much about what to look for. I checked my fuses in the breaker box.
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Old 10-25-2015, 03:08 PM   #9
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Quote:
Originally Posted by RodgerS View Post
It would be really helpful to have some schematics that tell you what is on which circuit.

Don't know how you checked you fuses/breakers, but sounds like it could be a loose wire or ground issue if not the fuse. Just don't assume anything and start with your power sources, then work downstream.

Doesn't sound like you had a short that blew a fuse, but that something was loose or corroded, as in electrical inconsistency.

If you are in NorCal, would be willing to help troubleshoot.

Some of what you wrote is confusing as I think you are using your words loosely, like every other power works...without amps hooked up...not sure what that means.

Regardless, every year it is a good idea to be sure all your electrical connections are clean, tight, and dry.

Hopefully my last post gave a little bit of feedback to your info. Do you know any links for troubleshooting guidance to check the ground and battery out? Im not to familiar in that area
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Old 10-25-2015, 03:10 PM   #10
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If you are hooked up and the battery gauge shows full power, then you have DC power from your converter, at least. You just have a blown DC fuse, most likely

The A/C, fridge, and ceiling lights all need 12 volt DC to run (the fridge and A/C just use 12 volts for their controls). So I'm guessing you have a 12 volt fuse (not an AC breaker) that has blown for some reason; that 12 volt fuse protects a circuit that has your ceiling lights, fridge, and A/C controls. Have you checked your DC fuses - probably they are located near your converter; they are small plastic things that have numbers like 15 or 20 or 30 embossed into the end of them. You could remove each fuse, one at a time, and see if the metal has broken or melted on the side of the fuse. If you have a DC voltmeter, you could use it to test that you have 12 volts on each side of each DC fuse. If you have to replace a fuse, be sure to replace it with one of the same amp value (15 or 20 or 30). Hopefully whatever made your fuse blow was an intermittent problem, but try to figure out why the fuse blew in the first place.
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