Question about Sharp R-930AK Convection/Microwave Oven

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Convection not working

When I use the convection oven stops after +/- 5 minutes, the microwave part its working fine

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Re: convection not working

This almost certainly a bad thermistor. It may be open due to corrosion, or its resistance has dropped due to caked grease and / or carbon deposits.

The part number is FH-HZA041WRE0 and the best place to order Sharp parts is Tritronics.

We actually have the service manual for this model and have uploaded it to our site here to help you.

You will need the free Adobe Reader to view or print it.

If your model is not R-930, please reply back with your brand and model number so we can help you.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Sep 06, 2008

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Hi ..Our Microwave stopped working. It is a GE Microwave- Convection Oven in wall combo with control panels for both ovens shared. Convection oven works fine. Microwave has no is dead. ...

There is often a fuse and a magnetron thermal fuse or thermostat.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.


At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can find links to helpful exploded view diagrams and order parts here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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May 28, 2007 | Sharp R-930AK Convection/Microwave Oven

1 Answer


The manual states that it will beep once a minute after food cooks until you open the door or press stop. Other than that, it sounds like an error condition. But you might contact the GE Answer Center at 1-800-626-2005 Monday 6 a.m. ET through Saturday midnight ET. The owner's manual is available here:

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