So I have to preface my question with the following -- I have a 2022 Regency Ultra Brougham built on a 2021 Sprinter 3500 chassis. Earlier this year my coach was at teh manufacturer for roof repair and I had them install a second alternator. They did mention that they "disconnected" the connection to the primary alternator (and I assume that chassis battery system) - but they did not give me details on what they had done. Unfortuntely the company seems to be having some financial problems , their website has been taken down and I can't get any return phone calls.
So I can't get the answers the "easy way".
When my coach returned from the manufacturer I heard the oddest clicking noise that I only today determined where it was coming from.
I have attached a photo and a movie.
[couldn't attach the video so I made a link.
https://gofile.me/74OCD/ieY6vw3r2
In the photo the larger black device to the left is an InstallBay (solenoid) as I understand it. I had to replace it previously is why I know what it is. Apparently it's original function was to let current flow from the chassis electrical system (and alternator) back to the house batteries - as long as the engine was running. But in turn would NOT allow the coach electrical to draw from the chassis battery if the engine wasn't running. It apears that the other leg has been disconnected (I assume what they meant when they disconnected the primary alternator from the house sytem).
The smaller black device in the middle is what is making all the noise -- notice the movie/video when I disconnect the yellow wire the noise goes away and when conencted it makes all the noise.
What is the device in the middle? Do I even need it any longer since the InstallBay solenoid apparently is being used through it's second connection??
What is the device on the right ? It appears to have the wires that go to the InstallBay solenoid that acivate or deactivate it. Are any of those connections needed any longer?
Thanks --I wish I could ask the installer