B+ motorhomes
I just bought a Trail Lite B+ 211s with 8.1 Chevy engine. This is my fifth motorhome (others range from an old 20' Vagabond, and three Winnegagos, from 19 to 32'. This vehicle is fantastic. I am...
Forum Discussion
Burl, that should not happen. Unless you have a Trik-L-Start installed.
Here is my post of the battery interconnection stuff.:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/157894/gotomsg/26380317.cfm#26380317
Only two things cause the house and chassis batteries to be connected.
1) engine running, OR
2) EM start switch
Well, OK, if there is mis-wiring, that could do it too. You can look at your wiring and compare it to what I posted.
Possibly your EM switch is on all the time. The way to test it would be, with the engine off, and the house battery switch on, check for 12v on the two small terminals of the upper relay (solenoid) in my photo/diagram. That relay is the one that connects the two batteries. If you have 12v on its small terminals with the engine off, the EM switch is sending it.
There is something that I'm missing in that diagram but I'm not sure what. I'll think about it some more. What I recall is that I'm not sure how, when you plug in to shore power and don't turn the battery switch on, charging power still gets to the battery. Or does it? Anyway, that's a separate issue.
PS: If you go look at my linked post, you'll see another right below it with links to your original threads on this. You already did the test I recommended and got voltage on there when there should not be. To me, that sure suggests a bad EM switch. One way to test that would be to disconnect a wire or two. I can provide detail if you want to proceed.
Here is my post of the battery interconnection stuff.:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/157894/gotomsg/26380317.cfm#26380317
Only two things cause the house and chassis batteries to be connected.
1) engine running, OR
2) EM start switch
Well, OK, if there is mis-wiring, that could do it too. You can look at your wiring and compare it to what I posted.
Possibly your EM switch is on all the time. The way to test it would be, with the engine off, and the house battery switch on, check for 12v on the two small terminals of the upper relay (solenoid) in my photo/diagram. That relay is the one that connects the two batteries. If you have 12v on its small terminals with the engine off, the EM switch is sending it.
There is something that I'm missing in that diagram but I'm not sure what. I'll think about it some more. What I recall is that I'm not sure how, when you plug in to shore power and don't turn the battery switch on, charging power still gets to the battery. Or does it? Anyway, that's a separate issue.
PS: If you go look at my linked post, you'll see another right below it with links to your original threads on this. You already did the test I recommended and got voltage on there when there should not be. To me, that sure suggests a bad EM switch. One way to test that would be to disconnect a wire or two. I can provide detail if you want to proceed.
