[birdman]

I have a Whirlpool "Imperial Series" dryer.It is a 2001 model, 7 cycle 4 temperatures. Sorry, i do not know the model number.
Was working fine for the past 6 1/2 years until last night.The dryer receptical wiring runs from the home electrical panel (100 amp "fuse" service) to a metal box with a switch and two 30 amp fuses inside. Then it is wired to the recepticle box. The dryer will run for a few minutes tops and then blows the 30 amp fuse that enables the dryer to start and the door light.The other 30 amp fuse which i believe controls the heating element of the dryer does not blow.I had the back cover off the dryer and the blower motor area to clean it out.Exhaust stack is clean.I am lost on this one.My thoughts are I have an electrical short.I ran the dryer with the panel off the back and it did not blow.
Any ideas?
Thanks in advance.