Your rv has two separate electrical systems.
Rv 12 volt system not working when plugged in.
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.
The battery has a full charge and all the fuses are good.
A 12 volt dc electrical system and a 120 volt ac system.
If your lights or other 12 volt items are not working you ll need to troubleshoot your 12 volt system to find the source of the problem.
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.
The only think i have done since the last time i used the trailer is to fill up the propane tanks.
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.
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.
Here is a little more information on them.
My 12 volt system is not working.
Troubleshooting the rv 12 volt system.
For starters you will need a couple of simple tools to assist you in troubleshooting your rv s 12 volt electrical system.
An inexpensive 12 volt test light.
Thanks for visiting the rv repair club site and the opportunity to assist with your power requirement issues.
A 12 volt problem can cause failure of other appliances and systems if they have 12 volt power to their controls.
A bad connection in the 12 volt system can cause failures of various appliances including slides and lights which run on 12 volt power.
Rv 12 volt system not working.
There are two 12 volt systems and a house 120 volt electrical system.
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.
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.
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.
Troubleshooting 12 volt system problems.
One rv two electrical systems.
Likewise your inverter converter is also essential to your 12 volt electrical system and that could be the source of the problem.
Customer service techs december 8th 2015.