HobieWon
North Carolina
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Joined: 02/19/2003
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I made a really dumb mistake and connected the 12v battery wrong-backwards. (in my defense the negative black wire had a red piece of tape on it, it was dark, and cold...)
Now with a new battery nothing works on battery, the 120 AC works fine.
What did I break? Can I fix it myself?
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wayne_tw
South Dakota/Georgia
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Joined: 07/21/2007
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The converter has a fuse that will blow if you connect it backwards, that is why you have no 12 volt electric. Replace the fuse and all is well.
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sch911
Rochester Hills, MI
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Joined: 04/13/2003
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Most likely blew the fuses on the converter's battery feed line. Need to follow the battery feed going in to the converter and find the fuse(s).
2003 Damon Challenger 348 Class A - Triton V10
Posted by Macintosh
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LAdams
Northern Illinois
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Yeah, check the main fuses coming from the battery... Chances are everything is OK after fuse replacement - we've all done it - don't feel too bad 
Les
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shenandoahvalley
Shenandoah Valley, Virginia
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Joined: 02/09/2007
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Yeah, I tried to jump start a motorcycle once and hooked it up backwards. Blew the main fuse. Not hard to do...just check the fuses.
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n8wgb
OH
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Joined: 09/29/2003
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Also check your converter for a polarity reversal fuse. Many have them.
Chris
1998 Aerolite 21RDB
EQUALIZER hitch
2003 Ford Sport Trac, 4.0L, V6 OHC, 4:10 rear 4x4, auto
Ham radio callsign: N8WGB
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tvman44
Southwest Louisiana
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Joined: 09/25/2007
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n8wgb wrote:Also check your converter for a polarity reversal fuse. Many have them. Most modern converters have a reverse protection fuse.
Papa Bob
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Jesse624
Baton Rouge, LA
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Joined: 06/20/2004
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Been there, done that too. On my converter, I had two 35 amp fuses to protect against reverse polarity that blew. Replaced them and all was back to normal. I did have a hard time finding the 35 amp stab in type fuses though. If you need this type of fuse, let me know, I've got lots of extra now, since I could only find them in a packet of 25.
Skip & Susie
Roxie our 12 yr old Dachshund
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jf504mp
Indiana
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Joined: 01/06/2007
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I haven't done that one yet. It is dark and cold out right now. I think I will just go get it out of the way....I have done other things that don't want to admit too.... 
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rwjejits
Houston, Texas
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Joined: 06/24/2005
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One more vote for the fuse in converter. Did the same thing about 2 months ago.
2004 Ford F250 6.0 PSD
1998 31' Seahawk 5th Wheel
"I love the smell of diesel in the morning"
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