Puresource plus refrigerator water filter
Also sold as WF1CB
Makers suggest a new water filter about every six months.
Frigidaire FRS3R5EMB8: 4 replacement parts, including the puresource plus refrigerator water filter (WFCB) and the defrost bi-metal thermostat (5303918214). Parts list from Sears PartsDirect, checked November 15, 2026.
Also sold as WF1CB
Makers suggest a new water filter about every six months.
Senses temperature so the fridge cycles on and off.
Replaces 240531101
Slow filling, no water or no ice can trace back to this valve.
Replaces 5304445222
No ice, or ice that won't drop, points to the ice maker.
1Water filterWFCB
2Thermostat5303918214
3Valve assembly242252702
4Motor241798231Part numbers come from the Sears PartsDirect parts list for the Frigidaire FRS3R5EMB8 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Inside the fresh food section, on a side wall or the ceiling near the light. Some models: behind the kick plate at the bottom.