Description
Pack of two waveguide covers for Panasonic microwave ovens.
Part number: Z20556W50XP
125mm long x 83mm wide
NN-A524MF, NN-A554WF, NN-A574SF, NN-CD58JS, NN-CT54JW, NN-CT552W, NN-CT555W, NN-CT559W, NN-CT55JW, NN-CT562M, NN-CT565M, NN-CT569M, NN-CT56JB, NN-CT579S, NN-CT57JM, NN-CT585S, NN-ST479S, NN-CD550W, NN-CD550WS, NN-CD560M, NN-GD458W, NN-GD459W, NN-GD459W, NN-GD469M, NN-GD550W, NN-GD559W, NN-GD560M, NN-GT460M, NN-GT469M, NN-SD440W, NN-SD449W, NN-SD450W, NN-SD459W, NN-SD460M, NN-SD469M, NN-ST450W, NN-ST459WB, NN-ST460M, NN-ST469M, NN-ST477S
If your microwave is arcing or sparking during cooking, it may be that the waveguide cover is damaged. This metallic type material, which is a blend of mica and is invisible to microwaves, it covers the aperture that the microwaves pass through to get into the oven cavity. When old damp or contaminated can react to microwaves by arcing.