I unscrewed the base where the electrode was attached to detached the electrode detached the wire to the electrode inserted new electrode with holding spring and clamp attached wire to electrode. I then put the base back on top and screwed in the two screws assembled the remaining parts and turned on the stove unit and it worked I am very happy.
Repair is easy. The keeper ring installation while holding the spring down was tricky. An extra set of hands is helpful in holding and replacing the keeper ring.