I used a screwdriver to pry the electrode assy. out of the burner. then disconnected the wire. Then just connected the new electrode and place the assy, in the burner.
My husband and I replaced the igniter module, following directions we found online. We removed the old one, replaced it with the new one, and thankfully everything is working great!
Disconnected gas & electric connections; lifted unit out of countertop onto padded table upside down. Unscrewed ~16 sheet metal screws for access. Removed bad ignitor by driving off retaining clip. Had to remove burner (3 screws) for access to install retaining clip on new ignitor. Reassembled, reinstalled. Works like new!