Question about Jenn-Air JMC9158AA Convection Microwave Oven

1 Answer

Turntable won't stop

The microwave turntable keeps turning after the end of a cycle as long as the door is closed. Stops when door is opened, but starts to turn again as soon as the door is closed again.

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  • donald e schade Dec 09, 2008

    Same brand/type of microwave, except it's black (JMC9158AAB).



    Same problem, turntable spins when door is closed and light is on, without pressing any keys/buttons to tell it what you wanted it to do.



    Open the door and it stops spinning, but the light remains on. I have to trip the circuit breaker so it won't "sit" there in this mode with the door open and light still on.

  • adam1diy Apr 17, 2009

    I have the same problem on a LG MC 806BL.  Any easy way of working out/replacing a blown relay or is a whole new control board needed?
    Adam


  • William Miller
    William Miller May 11, 2010

    This
    is usually caused by either a bad door switch, a loose door switch
    mount (which are pretty simple problems to fix) or occasionally a
    problem on the control panel such as a shorted relay.

    Have you recently had trouble with your cooktop lights?

    This failure often occurs when a bulb goes out and the filament
    shorts, or when the bulbs are removed or installed without first
    unplugging the oven from the power line. Either can cause such a
    failure on the controller.

    This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

    Otherwise, you likely have a bad door switch or door switch mount.

    Please let me know and we'll take it from there.


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  • 178 Answers

Sounds like a door switch problem or stuck relay contacts on the control PCB. Do the light and fan run too or just the T/T??

Posted on Sep 11, 2009

  • Alison Jackson Aug 28, 2013

    I have a sharp combi microwave with same issue. door closed, turntable continues going round and light on. only way to stop it it to leave door ajar. Nothing else wrong with the microwave so hoping its a quick and cheap fix. n

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The turntable is the unit in the center of a microwave that you set your food on. It rotates during the microwave cycle, making sure all parts of a dish are properly heated. These are typically made of either hard glass or microwave-safe plastic.

Your microwave turntable may not turn due to any of these problems explained below.



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(c)The rotating mechanism on the inside of your microwave that rotates the turntable is actually connected to a small motor on the inside of your microwave's case. If this motor burns out or stops working, the mechanism will stop turning. This is something that needs to be replace.

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2 .Remove the bottom panel of the microwave. The Microwave Wizard website explains that the number of screws securing the panel varies depending on the manufacturer and specific microwave. Once the bottom panel is loosened, disconnect its wiring harness in order to completely remove the panel.

3. Locate the turntable motor. The Microwave Wizard website explains that the motor compartment should be positioned below the center of the microwave. Unscrew the motor, disconnect the wires, and remove it from the microwave.

4. Determine the specific part number for the turntable motor so that a correct replacement can be purchased or ordered. Position the new motor into the shaft in the bottom of the microwave. Screw the motor securely into place.

5. Test the microwave to make sure that the turntable motor is operating correctly. The Microwave Wizard website explains that the motor can make noises if it was not positioned evenly in the shaft. Reconnect all of the wires that were detached when removing the old motor.

6. Reinstall the microwave's bottom panel parts, and secure all of the screws in place. Reposition the turntable frame in the bottom of the microwave and place the turntable on top of it. Test the microwave in order to make sure that everything is working correctly.


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