Whirlpool microwave interior plastic part?

Microwave Repair
1

Hi all - glad I found this forum. Basically we have a microwave. Someone cooked something which caught fire. The microwave is okay and it works, but there was a plastic part on the ceiling of the microwave (on the inside) which melted and fell off. It looks like a plastic piece that covered a duct. Is there any chance I could find a replacement part for it? Its one of these microwaves which is installed over the stove, so its kind of expensive to replace the whole microwave.
Some information:
Model number etc: Whirlpool “microwave hood combination”, model MH1141XM
Here are three images of the interior of the microwave:
This is a closeup of where the plastic part went:
[COLOR=#810081]http://www.gesticulations.com/public/gallery/Images/fun/micwave3.jpg[/COLOR]
Two other images:
[COLOR=#810081]http://www.gesticulations.com/public/gallery/Images/fun/micwave1.jpg[/COLOR]
[COLOR=#810081]http://www.gesticulations.com/public/gallery/Images/fun/micwave2.jpg[/COLOR]
Thanks!

2

Looks like the part you are looking for is the inlet cover (#1 on the diagram). You have to order the nail and bushing to install the cover. Also I would recommend to clean the old paint with a sand paper and paint it using a microwave touch up paint.

Gene.

3

gene, thanks so much for the details. (By the way the full part number here is mh1141XMQ-0). I ordered the cover inlet. The screw and bushing are “out of stock”, i’m hunting for alternate sources for that now.

4

You are welcome. Keep us posted.

Gene.

5

I have the same problem after whirlpool said is was my fault for your using the rack without food on the turntable also, so no with some minor burning how do I fix the paint problem? Thank you!