As you may already figure out there are a wide variety of causes that could lead to the issue of rv 12 volt system not working issue.
Rv 12 volt system not working when plugged in.
Your rv has two separate electrical systems.
Thanks for visiting the rv repair club site and the opportunity to assist with your power requirement issues.
Likewise your inverter converter is also essential to your 12 volt electrical system and that could be the source of the problem.
With a little knowledge anybody is capable of troubleshooting a 12 vdc problem and in many cases repairing the problem without it ruining your camping trip.
Troubleshooting the rv 12 volt system.
My 12 volt system is not working.
One rv two electrical systems.
The only think i have done since the last time i used the trailer is to fill up the propane tanks.
The first thing you need to do is identify what components operate on 120 volt power and what draws from the 12 volt dc system.
Rv 12 volt system not working.
The microswitch appears to be o k i did take the trailer out in the country and had to travel over some rough gravel roads.
All the wiring i can see appears to be alright.
The 12 volt system is powered by a battery or in some cases multiple batteries and it powers things such as the start up on your water heater furnace and refrigerator plus most of the lights in your rv s living space your water pump your carbon.
You may not realize this but the 12 volt system in an rv always runs off of the batteries whether you re off grid or plugged in at a campground.
Your rv s 12 volt system runs off of the batteries and if they are dead damaged or undercharged that could stop your 12 volt system from working.
An inexpensive 12 volt test light.
Troubleshooting 12 volt system problems.
A 12 volt dc electrical system and a 120 volt ac system.
Here is a little more information on them.
For starters you will need a couple of simple tools to assist you in troubleshooting your rv s 12 volt electrical system.
In order to get the 12 volt system back online we have to decide exactly what prevent it from working properly.
A bad connection in the 12 volt system can cause failures of various appliances including slides and lights which run on 12 volt power.
This system consists of deep cycle batteries that provide power to all of the 12 volt lights water pump the circuit board for all of the appliances slide outs leveling jacks and propane detector.
The battery has a full charge and all the fuses are good.
Customer service techs december 8th 2015.