acloehlein, there are numerous things that could be causing that. Of course, first make sure that you have the right fuse. FT8ah250vp should be the one on the power board. If it continues to blow, you need to check the components on the logic board. Use a multimeter to check the Diode's, Caps and mosfets' on the board. Look for anything obvious, like charred components etc. Yes, that board is the powerboard and is available at places like this.