120 VAC Not Working in BoonDock Mode
When I have the coach plugged in to shore power or the generator is running, I have 120V to the coach. With generator off or coach unplugged, I cannot get the 120V in the coach. When I push the invertor button to on first time, nothing. When I push the button a second time the inverter on indicator will light and the 120V comes on for about 3 seconds, then off.
When troubleshooting this, I toggled the salesman switch and the 120V came back on. Later, when I tried to repeat the process, the 120V would not come on. I feel that this should be some simple issue that I am not seeing. I looked at the inverter and can't "see" anything unusual. I have not replaced anything or performed any maintenance actions on the coach.
The only think I did recently was to top off the distilled water in the batteries. This was done without incident. Both Coach disconnect switches off, engine off. Shore power unplugged. The only thing I had to do was disconnect the positive and negative connectors on two batteries to remove the fill cap. Replaced without issue. When I did this, I disconnected the positive terminal first and when I got to the other battery, I disconnected the negative terminal. Could this have anything to do with this issue? I did get the 120V to come on when toggling the salesman switch.
Thank you in advance for suggestions and ideas.
1999 Monaco Windsor 34'
Cummins 330hp, 8.3 ISC