If you mean a low volume humming, it is common and normal. If buzzing, that sounds like an alarm signal. I bet you are talking about the former.
Harry
With wife Carole 10 yrs fulltiming
Retired U.S. Army
2002 Carriage LS 37' 5er; 2006 Lance 1181
2008 F-450 King Ranch 4x4 fully loaded
2004 Jeep Grand Cherokee toad
SKP # 54751
Geocacher "DosTortugas" Harry's BLOG
I've had mine for over twenty years, and it has always buzzed when working. It quiets down after all the lights and other loads have been off for a while and the battery is fully charged.
Tom and Lynne
Tom is an Electronics Engineer, Lynne a retired teacher.
old rig is a 1988 Winnebago Superchief, currently on tour with the Blue Turtle Seduction (band)
new rig is a 2003 Foretravel 38' U295
I noticed in my TT that the charger/converter buzzes if there's no load. Turn on a light, it goes away.
However, this only occurs when the water level is low in my battery! So I'd recommend checking your water level. My battery needs to be topped up every month or two, or this happens again.
Humming and buzzing is normal for older units. The best way to fix it is to replace it with a Intellipower Converter with charge wizard. Ours is completely quiet except for when its internal fan kicks on, and that doesn't happen often. I did the replacement myself and it was an easy fix.
George
97 Airstream Land Yacht
01 PT Cruiser Dinghy
Cappy - Pekinese Burglar Alarm
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