Turn off the GE XL44 oven. Shut off the gas supply leading to the oven.
Open the oven door. Remove the oven racks.
Remove the two screws at the back of the oven bottom panel. Lift the panel out through the front opening.
Remove the two screws holding the ignitor to the gas burner assembly toward the rear of the oven. Unplug the electrical connector from the old ignitor. Remove the ignitor from the oven.
Install the new ignitor onto the gas burner assembly. Plug the electrical connector into its harness. Insert the two screws holding the ignitor in place.
Replace the oven bottom panel. Install the two screws at the back of the panel to secure it to the cabinet.