, My microwave oven was sparking around one of the shelfbrackets inside , I cleaned it no sparks is it o.k.?

is it safe to use now , it is also a convection oven, can I put anything around shelf bracket support to stop this from doing it again, it seemed like it may have been a carbon build up but has left a small damage area to support . can I fill this with anything ? this microwave is about 15 years old but has been very very good until now and do not want to dump it

Answers:
My understanding is that the 'arc' you see is when the gap between two pieces of metal is small enough that the building charge can jump. For example, a flat piece of tinfoil in a microwave won't arch while one crumpled into a ball will.

I wonder if some grease or dirt on the brackets had built up enough to make a small gap.

I am no expert, but it should be fine.

Other answers:
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answer: stop cooking meth
Dump it.
yes, i just read something about that. they say, if it arches, just clean it well. and it should be fine.
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