Puresource plus refrigerator water filter
Also sold as WF1CB
Makers suggest a new water filter about every six months.
Defrost bi-metal thermostat
Senses temperature so the fridge cycles on and off.
Roller
Thumping or squealing during a cycle points to worn rollers, pulleys or bearings.
Water valve
Replaces 240321801
Slow filling, no water or no ice can trace back to this valve.
Gasket
Replaces 240390605
A gasket that doesn't seal lets warm air in and frost build up.
Mold
Replaces 5303320545
No ice, or ice that won't drop, points to the ice maker.
Light bulb
Replaces 240436701
The light bulb this model takes.
1Water filterWFCB
2Thermostat5303918214
3Roller5304418225
4Water valve242252702Part numbers come from the Sears PartsDirect parts list for the Frigidaire FRS26KR4AW3 (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.