I have had a Kenmore Elite he3 gas dryer for 6 years. It suddenly would not start. The "clean lint" lite keeps flashing. I vacumed all vents, took off the back vent, vacumed the dryer and the wall vent. I washed the screen and it still will not work. Is there a diagnostic test I can run? All power is on. I cannot select a couple cycles like jeans and gentle. Is there a fuse that needs to be changed?