In article ,
"Brian Gaff" writes:
I had a philips microwave that rusted through on the bottom lip of the drop
down door, it almost fell off the hinge. The paint covered up the rust!

Microwave oven cavities rusting through the bottom due to spillage
and/or condensation can be an issue, and is something to be checked
when inspecting/testing them.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]