From being in the service business, and having experience with this,
if the microwave oven is out of warranty, it would be safest to
discard the unit, and replace it with a new one.

In the case where there is a seriuos short causing an actual fire, the
manufactures would normaly replace the unit during the warranty
period.

If it was a simple failure where there was no fire or hazard
condition, the defective parts would be changed, the unit would be
tested for performance and safety, and then returned to the customer.



Jerry Greenberg




On Jul 3, 1:40 pm, wrote:
I have a small problem with my Samsung microwave where it occasionally
catches on fire. It last occurred when I was heating 2T of margarine
in a cup. I heard a bang, then saw the fire coming from behind a cover
which is presumably where the magnetron tube is. But I have used the
oven since, and it is still working fine. This same sudden fire
problem occurred many months before, where again, the oven worked fine
afterward. I have melted margarine like this many times since and used
the oven many times during those months, so I don't know why all of a
sudden it decides to go pyro on me.

That's the basis of my query: Can anyone tell me what might be causing
this, what to check and how to fix it so it doesn't happen again? I do
not want to risk fire when I am not around to monitor what's going on
with the oven, but at the same time, I do not want to replace it. I
have looked at getting another oven, but there's nothing that I like
as much as my Samsung. It has the size, the looks and the advanced
controls (ie. one touch, defrosting, etc) that I like.

This is a pic of what the damage looks like on the interior:

http://www.mediafire.com/imageview.p...mtxmvt&thumb=4

And one of the exterior:

http://www.mediafire.com/imageview.p...noyvgd&thumb=4