2006 National Tradewinds 12-volt issues
Hi everyone. I was hoping to get some ideas on troubleshooting an electrical issue on my 2006 National Tradewinds class A. The coach is on a Freightliner chassis and powered by a 400 Cummins ISL. When I put the coach in winter storage everything was fine. Mid-winter I went to start it and it would barely crank. I started the generator to give the chassis batteries a charge and then used the battery boost switch to try and start the engine. As soon as I attempted this I completely lost all 12 volt power. The warning lights and Freightliner information panel wouldn't even illuminate. It was completely dead. Even the electric steps would not retract. I figured the batteries were completely gone as I assumed they were the original chassis batteries.
Yesterday I installed new chassis batteries and the coach started right up and ran normally. The problem is there are still 12 volt issues that I don't understand. The electric steps won't retract. When I try to retract my Power Gear hydraulic jacks the system will come on and attempt to initialize but then goes dark as if its lost power. I noticed that when this occurs the back-up camera monitor also goes black. I cannot even get the 12-volt house battery disconnect to come on although it had been on prior to my replacing the chassis batteries. I also have no power to the system panel that shows the status of either the house or chassis batteries. The house batteries are on a 100 watt solar system and are fully charged.
I have checked all fuses, all 12-volt circuit breakers as well as wire connections to the fuse boxes and can't find anything wrong. I'm not sure what to do now.
Yesterday I installed new chassis batteries and the coach started right up and ran normally. The problem is there are still 12 volt issues that I don't understand. The electric steps won't retract. When I try to retract my Power Gear hydraulic jacks the system will come on and attempt to initialize but then goes dark as if its lost power. I noticed that when this occurs the back-up camera monitor also goes black. I cannot even get the 12-volt house battery disconnect to come on although it had been on prior to my replacing the chassis batteries. I also have no power to the system panel that shows the status of either the house or chassis batteries. The house batteries are on a 100 watt solar system and are fully charged.
I have checked all fuses, all 12-volt circuit breakers as well as wire connections to the fuse boxes and can't find anything wrong. I'm not sure what to do now.
