This problem is commonly caused by a turntable motor that has worn out and needs replaced. The following link explains how to access and replace one:
http://www.fixya.com/support/r3555716-replacing_a_turntable_motor_on_a_microwa
For the model number you have listed, the part number is 46-841666-3.
You can purchase replacement parts at searspartsdirect.com.
The site also offers helpful exploded view diagrams to assist you in parts location/identification. The motor is listed at item 001-20 under the "Cabinet" heading. If you have any questions, please post back and let me know. I hope this helps you.
NOTE: You also consider the turn table coupling, which is item 004-22. The underside of the coupling has a keyed slot that fits on to the turn table motor shaft. If the coupling becomes cracked, or if the keyed slot "rounds out", it may be slipping on the motor shaft and not turning.
My r-930ak sharp carosol is arcing inside at the top.I took the proctector off inside & has a small hole in it.where can I buy another one & will this fix the problem
Replacing the turntable motor.
The motor assembly is fixed to the base
of the oven usually with two screws and access i obtained by removing
the inspection plate directly beneath the motor. It is usally a plug
in synchronus motor that revolves at a few revs per minute but the
plastic cogs in the motors gear box fail and the motor assembly must
be replaced. They are fairly inexpensive and obtainable usually from
a domestic appliance repair shop.
If you feel confident,
disconnect it from the mains power, remove anything in the cavity and
turn it upside down if it is a tabletop model, a little more
complicated if it is built in!
Remove the inspection plate and
disconnect the motor. Remove the motor and go and get a new one. Re
fit it and put the microwave back in its position. Plug it back in,
with the turntable and plate. Put a cup of water on the plate inside
of the oven and heat for 20 seconds to check the plate goes
round.
Hope this helps.
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