Isn't that actually an R1461A?
When you try to turn it by hand (as in the video) do you hear the motor whine? Is there resistance? Or does it just turn freely?
The hole in the turntable support should either be round with a flat side or a cross shape. If that's damaged, it won't work.
some cases, the legs of the support get too hot and when the weight
(food) is removed, they bend downward in relation to the hub.
have solved this problem in the past by carefully heating the area
where the legs meet the hub, using a gas stove flame or a torch.
Then I place it on a flat surface, weighted down so as to hold the legs so they will cool in the correct position.
If you have to do it more than once, the support should be replaced.
You can see if the motor is turning by removing the support and placing something wooden or plastic into the hole and see if it turns when you cook.
If you replace the support or motor, you should also replace the "packing" which is a rubber grommet.
You can find an exploded view here
, and the parts list is here
, but the best place to order Sharp parts is Tritronics
To replace the motor, you need to remove the bottom panel of the oven, then remove the motor screws.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.