I used my Breville Mirrorer Combination Microwave as a convection oven and after 15 minutes the glass plate exploded into 7 sharp pieces. Why? It's only 15 months old and what do I do about getting a new glass plate?

If it came with the oven a definite yes as it will be able to withstand the heat during the convection setting. If a ordinary plate is used it must be rated for use in ovens as it will become very hot on convection oven mode. So, if it can withstand use in a ordinary oven it will work just as good in a convection oven.

Seating the glass turntable can be tricky. After installing the turtable, rotate it slightly to confirm it is seated completely.

If you press "convection" the oven works just like a regular oven except that the element is on top. In "microwave" it works like a microwave oven. All you have to do is decide which mode you want to use and then punch in the time and hit "start". The glass plate is not really a necessity as long as you make sure there is a load in the oven when you are "microwaving".

yes,if it is the glass plate that turns that you are referring to,most plates fit most models,just keep the original plastic ring it rides on

definately dont use the standard glass plate for convectional 'oven' cooking, as it will shatter. i have had TWO plates shatter so far before realising they should only be used for microwave cooking.

you can buy one through an sharp authorized repair agent, and i am such an agent and the glass plated can range from $40 to $145. They are very expensive.

http://www.myapstore.com/Omega/Dispatcher?REQUEST=ACCESSORY THIS IS THE ONLY PLACE I COULD FIND THE PART YOU ASKED FOR ,JUST COPY & PASTE THIS INTO YOUR BROWSER & YOUR THERE.YOUR MODEL # DOES'NT SEEM TO BE COMPLETE,THERE ARE LIKE 2 OR 3 DIFFERANT PREFIXES FOR YOUR MODEL.SURF THE SITE,ITS PRETTY SIMPLE.ITS A LITTLE PRICY,(62$)BUT I DID MY BEST,HOPE THIS HELPS!!!

It may be a food placement issue or possibly a bad humidity sensor.

I always recommend that folks put food off-center on the turntable (not in the center) to assure more even heating.

It's a stirring action, so imagine how inefficient it would be to stir just by twirling a spoon in the center of your coffee!

Also, when you put your food off-center, you're not putting it in the same spot every time. That will help prevent repeated heating of the the same spot on the glass, which can lead to weakness and cracking. Microwave popcorn gets hot enough to do that.

We have the entire service manual at our site if your or a friend want to look that over: http://www.microwavedisplay.com/r820bc_bk_bw_sm.pdf

If you need a new sensor, you can order Sharp parts from Tritronics at http://www.wehaveparts.com

Please write back with more details if you need further help.

We're happy to help and we appreciate your thoughtful rating of our answer.

the magnetron has failed

first, get your money back or get a replacement for no charge. now, unplug the oven for 15 minutes and try again. if no-go, then some device is faulty that only a tech can find