Whirlpool dryer with digital controls stops working sometimes and I don't get any readout on the led panel. Can go back later and it will work. What causes this problem? I don't do anything to it. It seems as though I loose power and it comes back later.

Check your connections inside the electric panel on the wall and inside the 240 receptacle. It is also worth checking where your 240 plug wires attach to the dryer. Something may just need tightening.