Slide the ice-maker’s ice bin out from the refrigerator to provide access to the plate.
Unscrew all of the screws that hold the plate into place by using a Phillips screwdriver.
Pull the plate out from the freezer and inspect it. Look for cracks or buildup.
Wash the plate with warm soapy water to remove any buildup on the plate. If the plate is in good condition, you don't need to replace it. If the plate shows signs of damage, purchase a replacement from the manufacturer or from an appliance repair store.
Replace the plate and screw it back into place.
Slide the ice-maker bin back into place.