I had this same issue and thought something was fried in my controls. I unplugged the unit for 2 days and had the door open to hang towels from the pool to dry. The day before A&E was coming to repair, I plugged back in the dryer and to my surprise, it worked great. Then I started to think- it's July, very humid outside with high dew points, I had some condensation inside my dryer (on window) - i must of had some moisture in my electronics and leaving the door open (allowing air conditioned air from my house inside the unit) must have allowed those electronic controls to dry out. I investigated a bit further and found I had some lint build up not allowing my outside flap to fully close on my exterior vent, hence humid, outside air was constantly pouring into the dryer.

I fixed (cleaned) the exterior vent and replaced the lint hose for good measure and the unit has run perfectly since.

I am not a technician and just a semi-handy homeowner, but I thought I would share my experience in case it helps - so best of luck!

Charley,
you were right on the money!! I'm a bit impatient so I used my blow dryer on the controls and it started right up! I've been leaving the unit unplugged and it works fine. I know I have to take down my existing exhaust tube and make sure nothing has made a nest in it, but for now...good!! Thanks again!-Stacey:D