Answer Hello Ruth. Make sure the power is disconnected. Then remove the grille and remove the two screws in the front of the control. Once the two screws are removed, slide the control box forward and lift it upward to remove it and access the switches W11120791. Make sure you remove the wires from the old switch and mach then up to the new switch. Example is L1 goes to L1 and H1 to H1. Read More... Answered by AppliancePartsPros.com | Monday, May 7, 2012