12 volt does'nt work
i have a 2022 Forest River Flagstaff 21FBRS travel trailer. In 4 years we never had an issue until now. On our last trip, our 12 volt system stopped working (fridge, slide outs, lights, etc.). I made...
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Did you disconnect and reconnect any of the battery wires just before it failed? Is so you possibly reversed a wire and blew the reverse polarity fuse.
You really need a meter if you want to troubleshoot this. Almost any cheap digital multimeter will work.
Trace the positive wire from the battery to where it enters the trailer. There is possibly a circuit breaker on that wire that is failed. If you have a meter check that there is the same voltage going into and out of the breaker. If no meter then use a short piece of wire to jump between the terminals on the circuit breaker and see if things start working.
The 12 volt side uses fuses so check that all the fuses are good. Look online for the make and model of your power distribution center and see where the reverse polarity fuses are located and check them.
Here's a picture of a common circuit breaker that you might find on the tongue of the trailer.
