On my kenmore stove all but the left front igniters work. Electrode part number is WB13K10003. can someone tell me how the wire connects to the electrode, and how to remove the electrode itself? I want to swap the left front with a working igniter as a test. The wire and connections look ok to me. The left front electrode shows discoloration on the lower end. Is it possible that the spark module is bad? Three out of four top burners work properly.

Thanks in advance