Defrost heater
Replaces 5304523833
Melts frost off the cooling coils. Heavy frost points here.
Door hinge bearing
Thumping or squealing during a cycle points to worn rollers, pulleys or bearings.
Evaporator fan motor and blade
A noisy or stopped fan means poor airflow and uneven temperatures.
Light bulb
The light bulb this model takes.
Switch,reed
Replaces 242326001
Door, lid and control switches stop a cycle when they fail.
1Defrost heater5304524953
2Hinge bearing5304522194
3Blade5304523741
4Light bulb5304522314Part numbers come from the Sears PartsDirect parts list for the Frigidaire FFFU20F4VW0 (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
Upright freezers: inside, on a side wall near the top. Chest freezers: on the back or on the side near the lid hinge.