Disconnected power supply,removed upper rear cover,unplugged 4 electric plug connectors on controller,removed 4 phillips screws securing controller,removed and replaced controller after swaping cover plate from old to new one,installed 4 screws,reattached electrical connections ,re installed rear upper cover,done.plugged in range.total time,about 20-30 minutes being very carefull..cover plate has adhesive and care must be taken prying off old controller,make sure it is lined up perfectly on new controller before pressing down securly on new one..