The front right ceramic igniter for my GE stove will not spark, all of the remaining three ignite and work propertly. I have removed the screws, the covers to the surface top. I can not remove the ceramic igniter from its location. Have tried lifting upwards, without success. How would I remove the igniter from it's location. Do I need to remove the stove top suface in order to get beneath to disassemble further? Thanks for any advice!