power converter

[Mike1272]

My power converter is making a buzzing sound and I'm wondering if that means its starting to crap out on me. it didn't do it when it was new, trailer is 4 years old. Should i put a new one in?

[RoadrunnerII]

Pull the cover off with battery disconnected and no pedestal power. Look for the fan. Try pulling fan out and see if it spins smoothly. If not its just a computer fan. Find a replacement. While in there tighten all the wire screw downs. Sometimes they get loose cause funny things to happen.
Reconnect battery and pedestal power see if the noise is gone.

RoadrunnerII

[ALJO]

Some manufacturers put in the sleeve bearing PC type fan. Remove the fan and poke a hole in the sticker and put oil on the bearing, or replace the fan with a ball bearing one (most Dell PC's have a ball bearing fan).