I recently decided to add a battery to my camper. After reading several forums I began the project. I am using a 12 volt deep cycle battery with a 20 amp circuit breaker. The trailer already had the positive / negative hookups for the battery. I was able to get power to the converter, but none of my outlets are working just a blue light on for 12 volt. I have replaced the 20a fuse for the wiring harness. When I plug into my garage I can hear a humming noise, and from my understanding, that means the converter is receiving power. Not sure where the disconnect is, but any help or advice would be greatly appreciated. Here are some pictures to hopefully help troubleshoot.