dachshund lover

its a GE super capacity 8 cycle heavy duty deluxe quiet it has the buttons start, fabric care with 4 heat settings. MOD is DPSR483EA1WW and ser. MA791575A. it runs on 2 fuses size 30 one problem fuse blew and smelt smoke. we replaced thermal stake(i think thats it) it was on bottom of dryer burnt. Then a spark came from dryer all the time and found out the drum (bult) was broke it keeps the drum from shaking all over. Then i turned dryer on cottons regular heat and it runs non stop. and the dile or knob doesnt move. so i replaced the thermal swich (I think lol) it hooks up behind the temp knob the minute temp. but it dont blow fuse but knob still dont move and dryer still runs nonstop. now if i turn knob to no heat or fluff ect the knob will turn. 2 months now fuse still dont blow and knob still dont move but dryer still runs and runs but today it blew fuse about 7 times this dryer is in great shape it cost 475.00 my insurance picked it up cuz old dryer had a fire in it.its 4 yrs old.