4 1/2 year old Platinum Blue Star range broiler won't light. Anyone have any experience with this and would the main culprit be the ignitor? Oven works. We are not against trying to fix ourselves. Seems like it shouldn't be hard. Looks like some screws to remove and wires to take off and reattach to new ignitor. Any recommendations on where to buy the new part?

Also for the life of me I can not remember if the broiler actually made any kind of sound when it lights and operates. It's not making a sound when we turn knob to broil.