Tony Hwang writes:
Dean Clous wrote:
We have an ancient microwave oven that is still functional but the plastic
liner on the inside of the door around the window shattered the other day
when my wife opened the door. I've looked this over and I suspect that
this piece of plastic is absolutely cosmetic but I cannot seem to confirm
this. Given that the beastie was built in 1987 I'm not surprised that I'm
having difficulties finding answers. Can anyone help?

Hi.
Wow! it is older than I, LOL! Time for a new unit. If concerned check
with MW leak tester.

My Sharp Carousel was built in 1983. A plastic trim piece covering
the hinge has broken, but otherwise the microwave is still cooking
after thirty years of daily use. While it is only 600 watts, it is
virtually impossible to burn popcorn with it :-)

Second the leak checker.