Forum Discussion

Moffittclan's avatar
Moffittclan
Explorer
May 16, 2016

Battery disconnect or isolation solenoid? HELP!

I think I might have a bad isolation solenoid because my house batteries aren't charging with the engine running...I tested by measuring volts on house batteries with engine off (12.1) and then with e...
Sam_Spade's avatar
Sam_Spade
Explorer
May 16, 2016
Gjac wrote:
In your picture you can see 2 large nuts and two small nuts, there should be 12+v across the two large nuts if it is working


Unfortunate wording.
You should see 12V ON both lugs if it is working. (Exactly the same voltage.)
Seeing 12 V ACROSS the two lugs means something quite different.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,261 PostsLatest Activity: Jun 06, 2025