When i turn my sharp r-1405 on it starts throwing sparks in side from the right side

Unplug the unit and do not plug it back, I can almost picture someone doing this, watching the sparks and smoke and oh the lights dim--Be smart here===either replace it out of hand or take to a repair shop to see if worth fixing or not and do not attempt to turn it on again.

The part number is PCOVPB085MRP0 (note ohs and zeros are different) and you can get it from Encompass here.

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

A faily common problem. You need a new display panel to fix that. The display panel comes separate from the control board.

It may be the turntable motor or a bad connection on the control board, especially at the connector, or a bad turntable motor relay.

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

If your controller needs repair, we do that for $39.95 in most cases. Details are here.

You can buy the motor and other parts at Encompass here or call them toll-free at 866-779-5835.

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

I have the same problem. I am checking with Sharp for a part and the diagram on how to take the panel apart.

We have the service manual at our site and have uploaded it here to help you.

It has disassembly instructions, exploded views, and parts lists.
You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

mounted on the top follow the mains lead in

the fuse to the magnetron may be blown or the mag it's self is gone. if the door switch was bad the unit wouldn't rotate the carousel. if it is the fuse (check with a multi-meter and check continuity across both side of the fuse, acheap one will do) if it is good, time to replace the micro, as they are cheap and repair would cost more than to replace. hope this helps.
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Assuming this is a Sharp model R1405 or R1406, we have the service manual and have uploaded it to our site here for you.

(If you have a different model, please reply back with that)

The best place to order Sharp parts is Tritronics. You can also call them at 866-779-5835.

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.

Then you can see the parts and how they interact.

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

The cover is probably the magenetron. That is where the microwaves come from. If the bread was moist, it might have left condensate in the unit which is causing the sparking. Unplug the unit, leave the door open over night. If you can remove that cover, do so. Be sure to carefully replace it before using the unit. Never turn on a microwave with nothing in it.