If your Universal microwave turntable is not turning, the turntable motor is the most likely cause. Unplug the microwave and test the motor for continuity with a multimeter. If it has no continuity, replace the turntable motor. Next, inspect the glass tray drive coupling, which can break or strip where it connects to the motor shaft, followed by the glass tray support or roller guide. If both mechanical parts are intact, confirm the turntable option is turned on if your model has that setting. When the motor does not receive power, the user control and display board or main control board may be defective, although either board is less likely than the motor. A microwave not spinning can still heat, but the food may cook unevenly and develop hot spots. Enter your model number to find the exact replacement turntable motor, coupling, support, or control board for your specific microwave. Some testing or replacement procedures require removing the outer cabinet. The high-voltage capacitor inside stores a lethal charge even after the microwave is unplugged and must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, have a qualified technician perform the repair.
01 - Universal Microwave Turntable Motor
Use a multimeter to test the motor for continuity. If the turntable motor does not have continuity, replace it.
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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.
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.
04 - Universal 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 - Universal Microwave Touchpad
The touchpad 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 is defective. To determine if the touchpad is 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.
07 - Universal 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.