Forum Discussion

heyobie's avatar
heyobie
Explorer
Jun 10, 2018

12V circuit only works on shore power or generator

I have two 12V circuits that intermittently do not work. When I run the generator or connect to shore power the circuits work fine. I am not sure what the electrical gods are telling me. Any advice...
Class C
Roadpilot's avatar
Roadpilot
Explorer
Jun 11, 2018
Your measurements of 13.45 and 12.8 were probably done with either a trickle charger or shore power on. Measure the battery when you have the problem. It does sound like a battery issue.

About Motorhome Group

38,782 PostsLatest Activity: Sep 10, 2026