As the title states, the PF 100 keeps popping the fuse on the back side of the control panel. The fuse is a glass 4 amp fuse. The weird part is the machine turns on, all blowers, igniter, feed etc. Just like it should and then randomly it blows the fuse on the back side of the board. Sometimes it will go 5 mins before it blows it. Nothing seems to set it off...I'm kind of lost. Anyways, I did just buy this thing and it needs a pretty severe cleaning, and a lot of surface rust to be cleaned off. The auger/feed wasn't moving either until I took it apart and got it all moving(thought the auger motor was shorting out). I bought it knowing it may need some help and I'm very mechanically inclined. Just not with circuit boards. So I'm wondering if the board I have is bad. I'm hoping someone here will chime in and know exactly what I need to do to get this resolved and stay running.