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04-04-2018, 08:22 PM
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#15
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Senior Member
Join Date: Jul 2014
Posts: 35,419
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You should be able to plug in the trailer, with another new converter, with no battery and use a volt meter on the cables to find the positive one.
Your meter will read 12 volts if the red lead is on the positive cable. If they are crossed you will see a minus sign before the 12 volt numbers.
Since you can get to the converter, you can also disconnect the 12 volt wires from it and then hook up the battery.
Now try the electric jacks. If they work backwards of the switch markings, the battery cables are wrong.
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04-04-2018, 08:24 PM
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#16
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Senior Member
Join Date: May 2017
Location: Vancouver Wash
Posts: 7,227
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Using the ohm meter, place one probe on cable and the other probe on bare metal.....might have to scrape a paint by battery ....in my 5er, the red wire is the hot one, and the white one is ground
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04-04-2018, 08:34 PM
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#17
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Senior Member
Join Date: Mar 2015
Location: Connecticut
Posts: 166
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Can't you just follow the negative cable it should be attached to the frame near the battery.
__________________
2018 Keystone Cougar 22RBS
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04-04-2018, 08:51 PM
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#18
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Junior Member
Join Date: Mar 2018
Posts: 22
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I just checked again, I had the battery hooked up correctly. I followed the negative cable to the frame.
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04-04-2018, 08:55 PM
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#19
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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Quote:
Originally Posted by bob caldwell
Using the ohm meter, place one probe on cable and the other probe on bare metal.....might have to scrape a paint by battery ....in my 5er, the red wire is the hot one, and the white one is ground
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Ohm meter? Don't confuse the situation.
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04-04-2018, 09:02 PM
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#20
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Senior Member
Join Date: May 2017
Location: Vancouver Wash
Posts: 7,227
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Quote:
Originally Posted by tfryman
Ohm meter? Don't confuse the situation.
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If he couldn't get to the other end of cable, an ohm meter makes short work of which cable is which....
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04-04-2018, 09:04 PM
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#21
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Senior Member
Join Date: Oct 2013
Location: Altoona, Iowa
Posts: 1,668
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Quote:
Originally Posted by tinpusher1
I just checked again, I had the battery hooked up correctly. I followed the negative cable to the frame.
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Check out this thread on converter wire colors.
Converter Replacement - Be Careful with DC Hook-Up - Winnebago Owners Online Community
__________________
2010 Itasca Sunova 33C, (lots of upgrades and modifications)
2011 Honda CRV, 2004 Rubicon (many modifications)
[SIGPIC][/SIGPIC]
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04-04-2018, 09:16 PM
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#22
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Senior Member
Join Date: Mar 2015
Location: Connecticut
Posts: 166
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Maybe you just got a bad converter. Was it brand new?
__________________
2018 Keystone Cougar 22RBS
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04-04-2018, 09:18 PM
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#23
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Junior Member
Join Date: Mar 2018
Posts: 22
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So, is there a certain procedure to change a battery on a camper?
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04-04-2018, 09:23 PM
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#24
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Junior Member
Join Date: Mar 2018
Posts: 22
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Yes, the converter was brand new.
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04-04-2018, 09:30 PM
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#25
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Senior Member
Join Date: Mar 2015
Location: Connecticut
Posts: 166
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Nope just take the old one out and put the new one in.
__________________
2018 Keystone Cougar 22RBS
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04-04-2018, 09:31 PM
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#26
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Senior Member
Join Date: Mar 2015
Location: Connecticut
Posts: 166
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If the battery is disconnected and you plug in the trailer to power does any of the DC stuff work?
__________________
2018 Keystone Cougar 22RBS
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04-04-2018, 09:55 PM
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#27
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Junior Member
Join Date: Mar 2018
Posts: 22
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When I was camping yesterday I noticed that at dark I tuned the interior lights on to find that they were at half brightness. As the night went on the lights dimmed until there was about nothing left. The a/c, microwave and tv's worked fine. The fridge, water heater and light were all affected although I was hooked into 50 amp shore power. That was my first hint that a blew the converter.
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04-04-2018, 10:20 PM
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#28
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Senior Member
Join Date: Mar 2015
Location: Connecticut
Posts: 166
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Quote:
Originally Posted by tinpusher1
When I was camping yesterday I noticed that at dark I tuned the interior lights on to find that they were at half brightness. As the night went on the lights dimmed until there was about nothing left. The a/c, microwave and tv's worked fine. The fridge, water heater and light were all affected although I was hooked into 50 amp shore power. That was my first hint that a blew the converter.
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And this was with the new converter installed? If so that tells me that the DC system from the battery out is good.
I can only imagine that it has to be something on the converter output. Either it's hooked up wrong or there's a short somewhere.
Did you happen to power up the converter after you replaced it but before you put the battery in to see if it worked?
I'm all out of ideas!
__________________
2018 Keystone Cougar 22RBS
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