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From: Ron on 11 Dec 2009 05:48
The other day I noticed that our microwave was sparking a bit. Then a
few minutes after making some pop corn there was a loud thump sound
that came from the microwave, but I didn't think about it until I went
to heat up something: when I opened the microwave door, I saw the
glass rotating plate had spilt into two-- almost perfectly down the
middle. I couldn't have broken it that way if I had tried!

Does anyone know why the plate broke like that and if there's some
place I can get a replacement for it? They are standardized, no? :-)


Ron

From: William Sommerwerck on 11 Dec 2009 04:30
> Does anyone know why the plate broke like that and if there's some
> place I can get a replacement for it? They are standardized, no? :-)

Ignoring unrelieved stresses at the time of manufacture, the likely cause is
thermal stress.

Contact the manufacturer.


From: N_Cook on 11 Dec 2009 08:01
Ron <ryon(a)dslnorthwest.net> wrote in message
news:a62678bf-ca02-4656-bb5b-7bfb5247c5e6(a)s31g2000yqs.googlegroups.com...
> The other day I noticed that our microwave was sparking a bit. Then a
> few minutes after making some pop corn there was a loud thump sound
> that came from the microwave, but I didn't think about it until I went
> to heat up something: when I opened the microwave door, I saw the
> glass rotating plate had spilt into two-- almost perfectly down the
> middle. I couldn't have broken it that way if I had tried!
>
> Does anyone know why the plate broke like that and if there's some
> place I can get a replacement for it? They are standardized, no? :-)
>
>
> Ron
>

Is there a complex moulded mount at the centre that would require moulding
in 2 parts?
If removeable plate perhaps someone heavy handed at using the carving knife,
scored across and then thermal strsses in the uW


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/


From: William R. Walsh on 11 Dec 2009 10:23
Hi!

> Does anyone know why the plate broke like that and if there's
> some place I can get a replacement for it? They are
> standardized, no?  :-)

It was probably heat related damage. These plates can get very hot
while the microwave is in operation.

The plate itself is pretty well standardized. There are only so many
ways to make a round glass plate, after all. :-)

What will be different between microwave makers is the way the plate
is gripped by the turntable mechanism. There are usually some lumps of
formed glass made into the bottom of the glass that are caught and
driven by a simple gear.

A good appliance parts house should have the part, but the
manufacturer should be contacted first.

William
From: Michael A. Terrell on 11 Dec 2009 12:37

Ron wrote:
>
> The other day I noticed that our microwave was sparking a bit. Then a
> few minutes after making some pop corn there was a loud thump sound
> that came from the microwave, but I didn't think about it until I went
> to heat up something: when I opened the microwave door, I saw the
> glass rotating plate had spilt into two-- almost perfectly down the
> middle. I couldn't have broken it that way if I had tried!
>
> Does anyone know why the plate broke like that and if there's some
> place I can get a replacement for it? They are standardized, no? :-)
>
> Ron


Do you have a local Freecycle group? Old microwaves are offered
quite often. Just match the outer diameter.

You appear to be posting from Pennsylvania.

http://www.freecycle.org/group/US/Pennsylvania


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