Replacement of the turntable motor should be carried out by a qualified appliance repair service.
YOUR SAFETY IS PARAMOUNT!
Attempt this only if you are competent.
But here is a basic method if you are mechanically minded and have electrical safety knowledge.
The motor assembly is fixed to the base of the oven usually with two screws and access is obtained usually by removing the inspection plate directly beneath the motor. It is usually a plug in synchronous 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, sometimes it must be cut out with sharp cutters, and disconnect the motor. Remove the motor and go and get a new one. Fit the new motor and fit the inspection cover back on the base by turning it to fit and using an extra screw fix it then 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.
Answers & Comments
Replacement of the turntable motor should be carried out by a qualified appliance repair service.
YOUR SAFETY IS PARAMOUNT!
Attempt this only if you are competent.
But here is a basic method if you are mechanically minded and have electrical safety knowledge.
The motor assembly is fixed to the base of the oven usually with two screws and access is obtained usually by removing the inspection plate directly beneath the motor. It is usually a plug in synchronous 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, sometimes it must be cut out with sharp cutters, and disconnect the motor. Remove the motor and go and get a new one. Fit the new motor and fit the inspection cover back on the base by turning it to fit and using an extra screw fix it then 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.