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.
Gasket
Replaces 240542118
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.
Timer
Replaces 215846606
A dead display or random faults can come from the control board.
Evaporator motor
Replaces 240369702
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Light bulb
Replaces 241555401
The light bulb this model takes.
Crisper pan
Replaces 240337107
Crisper drawers, shelves and door bins made for this fridge.
1Water filterWFCB
2Thermostat5303918202
3Roller5304418225
4Gasket242193213Part numbers come from the Sears PartsDirect parts list for the Frigidaire GLRT188WDKB (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.