The Switch Holder is an OEM part for GE microwaves. It securely holds the door switches in place, ensuring that the microwave operates correctly and safely. The door switches detect whether the microwave door is closed, enabling the appliance to start cooking. Causes of a bad switch holder can include repeated opening and closing of the microwave door, exposure to heat and moisture, or general wear and tear over time. Symptoms of a bad switch holder include: The microwave not starting or stopping unexpectedly The door not latching properly Error messages related to door issues Loose or misaligned door switch This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.WB02X32720 (AP6874032) replaces WB02X21788, WB06X10857, PS12709820, WB06X10256, WB6X10256.