white knight condenser dryer model cl 767 sv?

i have this model..and its been fantastic up to now :) for some reason it keeps blowing the fuse in the plug. when switched on at plug with nothing on its ok...press low or high heat, with timers off, no problems...turn on timer..blows fuse...i had the heating element changed about 3 month ago...and was working perfect til now.was ok til we turned it on few days ago..and it blew the house box fuse also...seems odd....had it apart..cant see anything strange..but dont know what im looking for...PLEASE HELP....I NEED MY DRYER.