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...
when I replaced the EM solenoid, I do not recall that it changed anything.
I got so bummed doing all sorts of volyage tests with this or that system going that I just gave up. After eight years, the chassis battery is still going, so I interpret that as a good sign that maybe I should let it be? I looked at the water in the house batt and it was OK even after a year (maybe 2 or 3 y/o WM marine).
Next time I have to open that solenoid magic box, I will compare it to your pic.