Transfer box buzzing loudly
I noticed today the transfer box buzzing rather loudly today on my National Dolphin 5355. Is this a sign of a looming problem I have never noticed noise from it before ? So far electric seems normal I am not running anything yet in the motorhome. I am just plugged into a 20 amp in the garage. I noticed a loud click to the surge protector yesterday when a car battery charger I was plugging in had a short in the cord. Could this have damaged something? No breaker blew. Not sure if this outlet was on the same line in the garage.
Don & Mary and dog - Bailey
2006 National Dolphin 5355 36.5 ft
Home- near Akron, Ohio