Kenmore Elite Smartheat HE4 - Working in Diagnostic But Temperature LEDs stay on in Dx Mode

Hi Everyone

Thank you in advance for any help you can provide.

When I attempt to start a cycle the buttons do not activate to allow the dryer to start.

However, the dryer can start in diagnostic mode, but it doesn't appear to want to turn off.
Further, when I run through the diagnostic checks - the only apparent fail is the KEYPAD TEST (page 6-2) where the Temperature Level LEDs do not turn off.

I can run the dryer in diganostic mode and it gets hotter and hotter. the wrinkle button keeps beeping on and off.

The lights work, the heater and flame work...

So it is isolated to what? The part that determines when it is too hot? Or moisture sensor?

Help and suggestions are appreciated. I already have the toe cover off looking at it deeply (having found it here http://www.applianceblog.com/manuals/Duetdry.pdf)


Tim
Milton, Ontario