I first disconnected the power cable from the wall. My son and I removed the top back panel of the oven (5 screws). I took a photo of the faulty regulators with their wiring to ensure we put the new ones in correctly. We then removed the knobs from the faulty regulators and the screws holding the regulators in place (2 screws each). We then disconnected the wires from the faulty regulators and conencted them to the replacements one at a time, double checking the connections against the photo I took. After that, we reassembled everything, plugged the oven back into the socket, pushed it back in place and fired it up.