Master Controller for dual air conditioners
I have a 2000 Fleetwood Pace Arrow Vision. Under the fridge, where all the electrical stuff is, I find a metal box that's called "electronic climate control eneregy management unit master controller". For some time now it has intermittently produced a sound I can only describe as static. Doesn't matter whether I'm on shore power or not. Doesn't seem to affect anything — air conditioners are doing their thing properly. Is this sound an indication of pending doom, or something that naturally occurs?