Converter pulsating noise

[Jbcant]

I have a 2004 Itasco class A Suncruiser model 35u and I am camping now. The converter has started making a pulsating sound, no problem that I can detect. All electrical is working properly. Is the rhythmic pulsating a sign of age and future problems, any fix I should look into?

[Winterbagoal]

https://www.google.com/search?ei=vgf...4dUDCAw&uact=5

[Jbcant]

Thanks, I had looked at these google search comments previously and nothing seemed to fit my scenario.

[Morich]

Electronic gizmos that start to make noise can be from different things but one of the things I think of when something deals with AC current is "chatter" from a small part that begins to degrade.
Inside many gizmos is a transformer to change voltages up or down and those are often made of metal plates stamped out of thin metal and a stack of those plates is made into a solid block by dipping them in something close to varnish!
So after some time, the varnish can begin to break down and the metal plates can begin to get loose and the AC current passing through and around them can make them begin to "chatter" or "sing" in time to the 60 cycle AC.
You may have heard older furnaces, etc. "humm" when you got close?
Not usually a sign they are going to fail but they never get any more quiet, either!

Wild guess but what I might suspect from a sound that comes and goes as described!! Check to see if more current passing or less changes the sound?

[creativepart]

It could be an issue with your campground power pedestal. Do you have an effective EMS between your coach and the pedestal?

You may find if you are moving around that this issue will go away at the next campground. It's hard to say until you find it to be a constant problem no matter where you are plugged in.

I suppose you could turn off the power at the pedestal and turn on your generator and see if it still is making noise.