New Supper Amp ..... I wired it temporary straight to the dump load from rectifier to hold it in high winds because I didn't trust the brake to hold it without burning out . It was very quiet with only a very slight swosh sound from the blades , but after I wired it to the battery bank later it is making a kind of rattling noise sounds like some one rolling a ball bearing in a tin can . it's not suppose to sound like that is it ? ... it works very well, really puts out the amps but it making that noise . should I take it down and check the bearings ? It's only been up a month.