electrics for hoover hdv6 tumlledryer?

i have just put a bearing on the drum shaft ,,i believe i have done it correct ,,but i am stuck on the electrics..stupidly i never took notice where 2 componants go .. i have a small circuit board and somekind of switch type thing with 2 blue wires and a long arm that moves a redplastic thing inside a littlebox,, its the last part of putting the dryer back together ,when i have sorted this i only have to put the lid on and hopefully it will work