"Just Me!" writes:

Mistress wrote:
In article ,
says...

On the inside wall of the oven, (i.e. in the food area) is a shield
made of sheet metal, about 2 inches by 4 inches. The sparking has
occurred at the top center of that shield. Now there is a small hole
at the sparking site, about 1/8 inch across.

How safe (or unsafe) is this oven? Is it fixable?
"Safe" is a subjective judgement. It is fairly obvious that this
condition needs to be fixed. I would recommend not using the unit
until it is.
I am trying to guess what the piece may be. Are you sure it is
metal? (The size and placement lead me to think it might be a
difuser; mentioned in my response post a couple days ago)
If it is metal, are there screws securing it to the other metal? If
so, try removing the piece, cleaning the goop off it and securely
replacing it. A metal part must be securely connected to the cabinet
wall. Of course the new hole in it suggests you should replace the
part anyway. These are only long-distance guesses. Good luck.

think it was my post you refer to, yes indeed a diffuser(in my case),
developed slight hole and started arcing, removed it cleaned it off
both sides and replaced as securely as it was. Now works fine but has
small hole through middle, does this mean the micro part is now
focused through the hole and not diffused, if so is there any danger
to anyone using it? its a combi and the oven is used more than the
micro

will replace as soon as I can find someone that knows what I am
talking about

As far as I know, it's just cover for the waveguide and doesn't affect
the distribution of microwave energy in any way. The turntable or
rotating paddle distributes the microwaves more evenly.

Also keep in mind that the wavelength of the microwaves is about 5
inches. They don't sneak through little holes.

--- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/
Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
+Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
| Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

Note: These links are hopefully temporary until we can sort out the excessive
traffic on Repairfaq.org.

Important: Anything sent to the email address in the message header is ignored.
To contact me, please use the feedback form on the S.E.R FAQ Web sites.