Temperature sensor
Senses temperature so the fridge cycles on and off.
Roller assembly
Thumping or squealing during a cycle points to worn rollers, pulleys or bearings.
Gasket
A gasket that doesn't seal lets warm air in and frost build up.
Stripper arm
No ice, or ice that won't drop, points to the ice maker.
Defrost bi-metal thermostat
Senses temperature so the fridge cycles on and off.
G.e. refrigerator ice maker kit
No ice, or ice that won't drop, points to the ice maker.
Run capacitor
Replaces WR55X23731
A motor that hums but won't start often needs a new capacitor.
Motor DC con
Replaces WR60X24483
A motor that hums but won't turn, or stops once it's warm, needs replacing.
1SensorWR55X10025
2Roller assemblyWR02X24943
3GasketWR14X24747
4Stripper armWR29X10083Part numbers come from the Sears PartsDirect parts list for the GE GBE21DGKFRBB (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
Inside the fresh food section, on a side wall or the ceiling near the light. Some models: behind the kick plate at the bottom.