Lg dryer will not start

i have a dlg2102w dryer that will not start now i hve checked everthing when i hold the power button the start button lihts up also the the the lights around the center dial now when holding the power button i push the start button the unit starts and the burner comes on now still holding the buttons i let go of one and it don,t matter which one i let let go and it stops running

LG DLG2102w gas dryer. No power to display. Light works. Tested door switch and is okay.

LG DLG2102w gas dryer. No power to display. Light works. Tested door switch and is okay.