Panasonic Microwave Sparking? Permanent Replacement?

Hi! It’s so easy, I just replaced mine yesterday! You don’t even have to get the exact model number replacement. Buy a pack of universal mica “waveguide covers” online, mine were less than $8 on Amazon. Remove the old one carefully, if it’s old it may be crumbly or soft, but you’ll be using it as a template for the new one so try to keep it as intact as you can. There may be a plastic pin securing it that you’ll need to pry out. Keep it, you’ll be reusing it.

Trace the exact shape of the old one onto the new piece. It cuts very easily with normal scissors. Cut carefully alongside the inside edge of the tracing lines so it won’t be too big. If there is a hole for the plastic pin in the old cover, mark the spot and stab one with a sharp knife in the correct spot on the new one.

Insert tabs of one side edge into the slots of the waveguide. Bending the material very slightly, the tabs on the other side should be able to be easily inserted into their slots. Last, push the original plastic pin through the hole, if there is one. Done!