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Old 12-02-2021, 07:04 AM   #1
Ed an Barb
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no 12 volt in rv

montana R31,5 110 voltage good converter is good 12 volt works on the converter. unplug the 110 voltage no 12 volt all fuse are good disconnet switch is good ,battery are good help
 
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Old 12-02-2021, 07:24 AM   #2
RipNC
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Originally Posted by els65@outlook.com View Post
montana R31,5 110 voltage good converter is good 12 volt works on the converter. unplug the 110 voltage no 12 volt all fuse are good disconnet switch is good ,battery are good help
If all is good as stated you should have power. How did you verify "good"? Did you check power at the disconnect switch (both terminals)? Did you checkbattery voltage after letting sit for a bit without shorepower on?

A bit more info on what you tested and how would make it easier for somone to help rather than shooting in the dark, like I have.
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Old 12-02-2021, 09:35 AM   #3
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You need to check battery under load, not when connected to the converter.
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Old 12-02-2021, 10:19 AM   #4
Daryles
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No DC power from battery. Good when on Shore power.
Take a multimeter. On shore power, check each post of your red 50A self resetting circuit breakers near your batteries. They should all read the same (about 12.4vdc).
Now remove shore power. Check them again.
Which ever one is NOT showing 12vdc on the post, it is bad. Replace it.
Note: charging is also possible via the 7 way cable from your tow vehicle. It could be supplying power on the same (good) side of the breaker.
Buy Bussmann 50A self resetting circuit breakers. Very reliable. You can get them at your local auto parts store.
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Old 12-02-2021, 08:16 PM   #5
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Your problem is likely having the battery disconnect switch turned off. When the switch is in the open or off position, the key can be removed. Turned to the on or closed position, the key can not be pulled out. With the switch open, your batteries will also not receive a charge from the converter.
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