If you check the reading at the monitor panel when the rv is plugged in to electricity it will give you fully charged reading.
Rv 12 volt system not working when plugged in.
From there it feeds into all of the slides switches lights etc.
These vibrations can shake electrical connections loose.
Troubleshooting the rv 12 volt system.
You may have to take the cover off to get to one.
To get an accurate reading make sure the rv is not plugged into electricity and turn on a couple of overhead lights to place a small load on the battery.
If this is the cause of your rv 12 volt system not working issue you could take care of it in a blink of an eye.
The metal housing will work.
Check the reading at the monitor panel.
Overworked overheat batteries run short of water from time to time which disrupts the operation of the rv 12 volt system.
A bad connection in the 12 volt system can cause failures of various appliances including slides and lights which run on 12 volt power.
Many times it s the actual power system itself that s broken down somewhere between the source and the appliance.
Likewise your inverter converter is also essential to your 12 volt electrical system and that could be the source of the problem.
With it plugged in take a reading at your converter off the red battery lead and a good ground which can be in the power center.
If you re boondocking or dry camping and not plugged in you can use your batteries to power anything that runs off 12 volt.
Problems can occur in either one of these systems because rvs vibrate when traveling.
Also take a reading off the feeds to your circuits from the feed side of the fuses.
Typically the output of your 12 volt converter runs through two 30 amp fuses that supply the 12 volt fuse panel.
When you re plugged into a campground rv electrical pedestal or any power source your 12 volt battery or batteries automatically charges.
When your rv appliances aren t working it s not always right to assume the appliance itself is broken.