The square cover on the inside of the microwave is called the Waveguide Cover. The Waveguide Cover is there to protect the Waveguide cavity from food and moisture and to distribute the microwaves evenly to properly heat.

The Waveguide cavity is where the electomagnetic waves are generated in your microwave oven.

It is important that you do not remove this cover. You also need to make sure that it is kept clean. Just wipe it with a damp cloth, but don't apply too much pressure to the cover.

If the cover becomes to dirty and is not cleanable, please contact the Panasonic Customer Care Centre on 13 26 00. You will then be directed to a certified service centre to replace the cover.

Do Not remove this cover.

Do Not try to replace this yourself, it should be done by a trained service techncian.