I recently replaced both 5 year old 12 volt coach batteries on a 2006 Class A Gulfstream independence. Afterwards when I pressed the coach battery disconnect switch to restore house power, the lights started cycling off and on. I can hear the relay picking up and dropping out each time, but it won't stay latched in. Looking for troubleshooting suggestions.
Thanks in advance for any help you can provide
No, polarity was never a problem, the cables were too short to hook it up the wrong way. The problem was the amount of corrosion on the cable ring lugs and the fact that I stacked them up in a different order than they came off. The corrosion limited the current flow which dropped the voltage enough that it would not keep the main power relay coil energized.
I just sanded the corrosion off and reconnected the cables and everything worked fine.