Thanks for the info... I guess mine is actually called Odyssey Americana. 1990 6cyl. Mine hums always no mater what load. No fridge, with fridge, charging battery, not charging.... etc.
Also, a little hot on back plate! :-)
I have the same problem... when I turn on the water pump.... water comes out of the fill input on outside....when I capped off the intake hose.... leaks were coming from many different places on the lines inside and fittings! ???? Wow! The pump seems to work good. Water comes out the kitchen sink, shower, and bathroom sink fine!
Any ideas? This is a new rig for me...