touchpad

does any one know if the keypad does not respond what could be wrong? i did try replacing key pad but didn’t work.

dryer takes to long to dry. I have checked dry vent inside and out. I checked temperture it is 135f , both heaters check good, there is a light on the control panel that flashs cooling in any cycle. This is an LG model DLE3777W.IT would also helpful if anyone has a service manul for this model where I could run test on this dryer. Thanks johnj!

i would open the dryer up and see anything suspicious