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Old 06-07-2019, 11:14 AM   #1
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12 volt problem on Tracer 248

My brother in law is dry camping in Wyoming right now. Has my 3100 inverter/ generator with him. All power works on gen but has no 12 V without gen. He has checked battery and fuses, and says he has power past the junction box under the frame where battery POS cable goes in.
Has power on both red wires coming out if the box, but no power on 12 V wires coming in to converter.
Has any of you tracer owners had to deal with this? Are we missing another breaker/fuse somewhere? Thanks.
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Old 06-07-2019, 11:23 AM   #2
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My brother in law is dry camping in Wyoming right now. Has my 3100 inverter/ generator with him. All power works on gen but has no 12 V without gen. He has checked battery and fuses, and says he has power past the junction box under the frame where battery POS cable goes in.
Has power on both red wires coming out if the box, but no power on 12 V wires coming in to converter.
Has any of you tracer owners had to deal with this? Are we missing another breaker/fuse somewhere? Thanks.
Dave, not sure I'm following you here about 12 volt coming into the converter.

The converter usually has 120 volt AC incoming, and then converts it to 12 volt DC outgoing.

If he is trying to measure 12 volt DC coming from the battery, he probably needs to measure that on the fuse panel. See both diagrams below. I'll try to look up his inverter and see how that is wired.

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Old 06-07-2019, 11:33 AM   #3
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Is his battery installed properly? If reverse connections, then the reverse polarity fuses would be blown in converter/dc panel.
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Old 06-07-2019, 11:45 AM   #4
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Is his battery installed properly? If reverse connections, then the reverse polarity fuses would be blown in converter/dc panel.
Yes. He's been in the road for a week and all has been working. Until last night.
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Old 06-07-2019, 11:46 AM   #5
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Dave, not sure I'm following you here about 12 volt coming into the converter.

The converter usually has 120 volt AC incoming, and then converts it to 12 volt DC outgoing.

If he is trying to measure 12 volt DC coming from the battery, he probably needs to measure that on the fuse panel.

Sorry. He measured the red and black 12 vt wires coming from converter. No power. Thought it was 12 going in. Duh!
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Old 06-07-2019, 11:48 AM   #6
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He has a multi tester and knows how to use it but RV systems are new to him. The diagram may help. Thanks
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Old 06-07-2019, 11:49 AM   #7
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Is his battery installed properly? If reverse connections, then the reverse polarity fuses would be blown in converter/dc panel.
And he tells me he has power through all fuses. ??
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Old 06-07-2019, 11:50 AM   #8
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I'll try to look at his inverter setup when I get time.
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Old 06-07-2019, 12:54 PM   #9
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Could be...

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Originally Posted by dcheatwood View Post
My brother in law is dry camping in Wyoming right now. Has my 3100 inverter/ generator with him. All power works on gen but has no 12 V without gen. He has checked battery and fuses, and says he has power past the junction box under the frame where battery POS cable goes in.
Has power on both red wires coming out if the box, but no power on 12 V wires coming in to converter.
Has any of you tracer owners had to deal with this? Are we missing another breaker/fuse somewhere? Thanks.
I know nothing about Tracers, but most trailers have one or two hidden circuit breakers between the batteries and the converter which could cause this symptom. The BIL will have to lie on his back and crawl under the frame and inspect the areas below the battery and working back to where the converter is. He will follow the heavy battery cables until they reach a small plastic box, maybe 1" x 1-1/2" with two threaded terminals. (image below). There's a tiny, almost invisible button on one end; press it to reset the internal circuit breaker. There could be one or two of these devices.

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Old 06-07-2019, 12:55 PM   #10
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If everything works when generator is on, then converter is working and fuses are OK. So no power when generator is disconnected, means no battery power. Have him check for a lose or dirty connections on battery and chassis ground ( wire from bat neg to frame). He can also check the resettable breaker on bottom of frame near hitch.
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Old 06-07-2019, 04:25 PM   #11
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I know nothing about Tracers, but most trailers have one or two hidden circuit breakers between the batteries and the converter which could cause this symptom. The BIL will have to lie on his back and crawl under the frame and inspect the areas below the battery and working back to where the converter is. He will follow the heavy battery cables until they reach a small plastic box, maybe 1" x 1-1/2" with two threaded terminals. (image below). There's a tiny, almost invisible button on one end; press it to reset the internal circuit breaker. There could be one or two of these devices.

Larry
Thanks Larry. I guided him to the resets but he insists that he has power in both positive wires coming off them. I wish I was there to check that.
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Old 06-07-2019, 04:27 PM   #12
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Yes, he has confirmed that battery is good and has power. He has confirmed he has power after the reset breakers on the frame, but no power in tt.
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Old 06-07-2019, 04:44 PM   #13
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Just to be sure, Have him pull the two high current fuses in the dist panel and test them with a meter.
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Old 06-07-2019, 05:10 PM   #14
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Just to be sure, Have him pull the two high current fuses in the dist panel and test them with a meter.
Ok. I'll pass that on.
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Old 06-07-2019, 06:48 PM   #15
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Update- Solved.
He ran a new positive wire from the reset breaker to the fuse box. All is well now.
It appears, after much thought and discussion, that the original positive wire was damaged a few months ago when the fresh tank dropped out of the tt first time he filled it. That pulled wires and water lines down , and while it was repaired at dealer, evidently the positive wire was damaged and nt noticed. It worked about 5 days and then finally gave up.
He's a happy camper again and we both thank you for the help.
Pictures of tank dropped. Click image for larger version

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Old 06-10-2019, 02:08 AM   #16
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There is a CB in the generator. If that's popped nothing 12 volt works. See if that CB has popped.
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Old 06-10-2019, 05:52 AM   #17
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There is a CB in the generator. If that's popped nothing 12 volt works. See if that CB has popped.
Problem was solved. see above posts.
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Old 06-10-2019, 02:26 PM   #18
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There is a CB in the generator. If that's popped nothing 12 volt works. See if that CB has popped.
I believe that would only apply if on generator power.
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