Terry K Mobile , AL January 06, 2015 The button for the light was broken and pushed into the control panel Pulled the control panel to replace the button assembly. Found that Samsung had neglected to fasten the assembly into place with a screw as designed which caused the failure. Installed new button assembly installed (with an appropriate screw) and reassembled the control panel. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes