Originally Posted by Rascal55
Here are two pictures of the module in question.
It looks as though they may have changed the setup from 2013 to 2015. My 2015 37ND does not have the configuration pictured in the engine compartment but I do have a couple of solenoids and the bus bar in the house battery compartment.
The only noise I hear coming from my compartment is the inverter fan if the inverter is turned on or a solenoid clicking when going from use to store or vice versa.