If your Whirlpool microwave turntable is not turning, the turntable motor is the most likely cause. Unplug the microwave and use a multimeter to test the motor for continuity. Replace the motor if it tests open. Next, inspect the glass tray drive coupling and glass tray support for broken, cracked, or stripped parts. Gently pull each component from the drive motor shaft to check for damage. If the motor has power but does not run, replace it. If the motor is not receiving power, the user control and display board or main control board may be defective, although either board is less likely than the motor. Also confirm that the turntable option is turned on, if your model has that setting. A turntable that is not turning, microwave not spinning, or microwave plate not turning can leave hot spots where microwaves concentrate in one area, so avoid using the microwave until the problem is corrected. Enter your Whirlpool microwave model number to find the exact replacement turntable motor, coupler, support, or control board for your appliance. Testing or replacing a control board may require removing the outer cabinet. The high-voltage capacitor can store a lethal charge even when unplugged, so discharge it properly or have a qualified technician perform interior repairs.
01 - Whirlpool Microwave Turntable Motor
Use a multimeter to test the motor for continuity. If the turntable motor does not have continuity, replace it.
Enter model number to search for the required part specific to your product
If the microwave turntable is not turning the glass tray drive coupling could be broken or stripped out. Gently pull the coupling off the drive motor shaft to inspect the drive coupling for damage.
If the microwave turntable is not turning the glass tray support could be broken or stripped out. Gently pull the support off the drive motor shaft to inspect the tray support for damage.
04 - Whirlpool Microwave User Control and Display Board
The user control and display board might be defective. However, the turntable motor is much more likely to be at fault. First, test the incoming power to the turntable motor. If the motor is not getting power, the user control and display board may be defective. If the user control and display board is defective, replace it.
When the microwave turntable turns, the food is cooked evenly. If the turntable stops turning there may be hot spots where the microwaves are concentrated in one area. If the turntable is not turning, confirm the turntable option is turned on (if applicable).
Common
06 - Whirlpool Microwave Control Board
The control might be defective. However, the turntable motor is much more likely to be at fault. First, check the incoming power to the turntable motor. If the turntable motor is not getting power, the main control board may be at fault.
07 - Whirlpool Microwave Touchpad and Control Panel
The touchpad and control panel might be defective. However, the turntable motor is much more likely to be at fault. First, test the turntable motor. If the motor is not defective, it is possible that the touchpad and control panel are defective. To determine if the touchpad and control panel are defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad and control panel.