Thanks all for your advise so far! Here is an update....
I checked all the fuses prior to posting my original message and they all look good. There are two that are on the solenoid (there is one on top and one on bottom). They were both good. There was another misc small inline fuse that I checked and it was fine. I have checked all the breakers and fuses in the converter box and all were good.
I just did some probing with a volt meter to see what I could learn. I was able to find 12.7 volts among all the dozens of wires by the junction box and solenoid (...to make sure my volt meter is working). I also checked the house batteries in their compartment to verify that they are good and got 12.9v.
Then I started measuring voltages around the solenoid and that's where things get a little strange.... I was expecting that the voltage on one of the thick wires going to the large solenoid bolts was going to have 12v on it and the other would have 0v (because afterall the solenoid is just a big switch...). So far were were assuming we have either a bad Battery Disconnect switch or a bad solenoid. BUT, I was surprised to find NO VOLTAGE on either of the large bolt posts of the solenoid! I then checked the voltage across the smaller bolts of the solenoid (...my understanding is that when the battery disconnect switch by my side entrance door is toggled it should put a voltage across these smaller posts to "turn on" or "turn off" the solenoid). There was zero voltage change when the battery disconnect switch was pressed 'on' or 'off' by my assistant. Hmmm.... Now I'm more confused!
I have heard from some research that there could be a 2nd battery disconnect switch in some RVs. I have never seen such a switch in my RV and I have poked around lots. I took a look at the house batteries to make sure their connections looked good and they look rock solid. I looked at the heavy gauge wiring underneath the battery compartment to see if somehow they got broken/cut and I didn't see anything unusual. Where are some locations that a 2nd disconnect switch could be? I have also heard some speak of an inline fuse on the heavy gauge battery wire (maybe as it travels to the converter box???). Is that common?
Let me know if you have any ideas for me to check. Thanks again for your help!!
Chris
