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  #1  
Old 08-22-2019, 01:49 AM
FQ2 FQ2 is offline
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Default RV Camper = works on AC...not on DC?

Rv works on AC but not on DC.

Batteries are fine

fuses are all good

It'a a 5 year old Gulfstram Amerilite


what am i missing here?
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  #2  
Old 08-22-2019, 05:55 AM
Windsweptcoast Windsweptcoast is offline
 
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I had that problem on my trailer before, it was the battery even though it seemed to check ok with a voltmeter.
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  #3  
Old 08-22-2019, 07:17 AM
Blastoff Blastoff is offline
 
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I suspect battery as well, get someone to load test it,
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  #4  
Old 08-22-2019, 07:20 AM
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bat119 bat119 is offline
 
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Test for DC power at the fuse box could be a fuse between the battery and fuse box mine does have one.
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  #5  
Old 08-22-2019, 07:40 AM
BUSHRVN BUSHRVN is offline
 
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As Bat119 said, look for main fuse between battery and fuse panel. This can also be a little circuit breaker that can trip of be faulty. I had a buddy that had this issue and his was hidden under a little panel within the underbelly of the trailer which was hard to find. We got rid of the circuit breaker and put in a large fuse holder with a fuse instead, less problematic.
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  #6  
Old 08-22-2019, 09:31 AM
270person 270person is offline
 
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Check battery cables at battery. Tug on cable a bit. They corrode easily and can look like they're in place properly when they arent.

Check fuses and insure main breaker switch is in on position. It happens

Check small circuit breaker. Usually near battery on frame. They can become corroded.
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  #7  
Old 08-22-2019, 10:30 AM
JB_AOL JB_AOL is offline
 
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There's a main fuse usually around the tongue area of the trailer that should be all black, I bet it's that. I learnt about that after an cheap trip to the dealership
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  #8  
Old 08-22-2019, 11:42 AM
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nast70 nast70 is offline
 
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Check the connections on the battery are correct and tight. Sometimes its the most obvious things...
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  #9  
Old 08-22-2019, 12:24 PM
leeelmer leeelmer is offline
 
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Inverter!!
Your 12volt goes to it first from your batteries
They normally have a fuse on them
As well as a fuse in fuse box
Check connections at battery and load test batteries
Check 12volt connection at inverter and at fuse box
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  #10  
Old 08-22-2019, 12:37 PM
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rocpilefsj rocpilefsj is offline
 
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Check your breakaway brake controller. Had issues last year replaced my power converter, didn’t help. Crawled under my camper to doublecheck my grounds and noticed the pin was pulled out of the breakaway controller, plugged it back in and fine.
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  #11  
Old 08-22-2019, 01:24 PM
sako1 sako1 is offline
 
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Quote:
Originally Posted by leeelmer View Post
Inverter!!
Your 12volt goes to it first from your batteries
They normally have a fuse on them
As well as a fuse in fuse box
Check connections at battery and load test batteries
Check 12volt connection at inverter and at fuse box
Converter
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  #12  
Old 08-22-2019, 01:42 PM
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bat119 bat119 is offline
 
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Op said DC worked on 120
The problem is the battery or fuse/connection going to the conveter/fusebox unplug the trailer to test so not to get confused with power from the converter.
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  #13  
Old 08-22-2019, 01:45 PM
G123 G123 is offline
 
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It'll probably be an inline fuse. I had mine blow in Jasper a couple years ago. Limped it back to Western RV and they had it fixed in 1/2 hour. I had no idea there were additional fuses other than in the panel. Cost me over $2000 for a replacement battery and three nights stay at the Lodge all for a $2 fuse!!
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  #14  
Old 08-22-2019, 02:10 PM
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bat119 bat119 is offline
 
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Quote:
Originally Posted by G123 View Post
It'll probably be an inline fuse. I had mine blow in Jasper a couple years ago. Limped it back to Western RV and they had it fixed in 1/2 hour. I had no idea there were additional fuses other than in the panel. Cost me over $2000 for a replacement battery and three nights stay at the Lodge all for a $2 fuse!!
Mine blew putting the battery in after winter the white wire is positive on mine I reversed the connection blowing the fuse I didn't know existed.

Everything worked at home because it was plugged in, didn't notice until we went boondocking on the weekend... no DC power???

I found the inline fuse conveniently tucked in under the siding behind the hitch, the manual does not mention this fuse.
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  #15  
Old 08-22-2019, 03:59 PM
YYC338 YYC338 is offline
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Quote:
Originally Posted by BUSHRVN View Post
As Bat119 said, look for main fuse between battery and fuse panel. This can also be a little circuit breaker that can trip of be faulty. I had a buddy that had this issue and his was hidden under a little panel within the underbelly of the trailer which was hard to find. We got rid of the circuit breaker and put in a large fuse holder with a fuse instead, less problematic.
This is likely your problem.
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  #16  
Old 08-24-2019, 11:04 AM
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mayuan mayuan is offline
 
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Same response as everyone else, the inline fuse between the battery and the main panel. Mine was at the front of the trailer under the first beam completely exposed. I had to rewire the system and put it in a proper box to avoid the issue from happening again.

I have learned to keep a full selection of tools and diagnostic equipment in the trailer. Funny thing is... I buy them new and sell before the trailer is 5yrs old.
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  #17  
Old 08-24-2019, 03:44 PM
Unregistered user Unregistered user is offline
 
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Quote:
Originally Posted by bat119 View Post
Mine blew putting the battery in after winter the white wire is positive on mine I reversed the connection blowing the fuse I didn't know existed.

Everything worked at home because it was plugged in, didn't notice until we went boondocking on the weekend... no DC power???

I found the inline fuse conveniently tucked in under the siding behind the hitch, the manual does not mention this fuse.
Holy moly, white is neg in RVs. Buddy had a tent trailer that wouldn't run the furnace on 12v after he had played with the wiring just a bit, this was his problem. I hooked it up properly and he begged me not to mention it to his wife as she had recently come back from a trip with it and froze her doo-dads off.
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  #18  
Old 08-24-2019, 04:34 PM
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Quote:
Originally Posted by Unregistered user View Post
Holy moly, white is neg in RVs. Buddy had a tent trailer that wouldn't run the furnace on 12v after he had played with the wiring just a bit, this was his problem. I hooked it up properly and he begged me not to mention it to his wife as she had recently come back from a trip with it and froze her doo-dads off.
In most yes, I marked the wire the wire to avid confusion. mine is backwards I really should change it from the connection box for the next guy, must have made on Friday afternoon I found all kinds of poor workmanship in this trailer.

There doesn't seem to be a code for RV wiring
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  #19  
Old 08-24-2019, 07:19 PM
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Yes there is. Black (Or red) is positive, white is negative.
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  #20  
Old 08-27-2019, 07:20 AM
FQ2 FQ2 is offline
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Good to go, thanks for the assistance
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  #21  
Old 08-27-2019, 09:43 AM
270person 270person is offline
 
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Quote:
Originally Posted by FQ2 View Post
Good to go, thanks for the assistance


What was the issue?
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  #22  
Old 08-27-2019, 08:45 PM
Mountain Guy Mountain Guy is offline
 
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guessing the master disconnect switch..
mine got inadvertently flipped off yesterday. Last thing I checked after going thru everything else.
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  #23  
Old 08-28-2019, 10:25 AM
FQ2 FQ2 is offline
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Burned out 30amp fuse at the tongue and 2 x dead batteries.

Batteries were 2 years old.
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  #24  
Old 08-28-2019, 02:00 PM
270person 270person is offline
 
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Quote:
Originally Posted by FQ2 View Post
Burned out 30amp fuse at the tongue and 2 x dead batteries.

Batteries were 2 years old.


All I can say is 6 VOLT.....6 VOLT...
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