Ordered, received, and installed new Surface element infinite control switches, one low and one high power (2 different size surface elements were not performing properly during cooking). Had to move stove out from wall, unplug the power cord (very important!), remove thin metal cover on back of stove to access the controls. Remove and replace the Infinite control switches, one at a time, paying attention to the wiring pattern. Install the sheet steel cover on back of stove. Plug power cord in, operate the switches, good to go. Slide stove back in place. Parts ordered were a perfect fit and type.