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 inlet valve
Replaces 240519601
Slow filling, no water or no ice can trace back to this valve.
Mold
Replaces 5303320545
No ice, or ice that won't drop, points to the ice maker.
Defrost timer
Replaces 241621501
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 240436702
The light bulb this model takes.
Crisper pan
Replaces 240337107
Crisper drawers, shelves and door bins made for this fridge.
1Thermostat5303918202
2Roller5304418225
3Inlet valve242252603
4Mold241798231Part numbers come from the Sears PartsDirect parts list for the Frigidaire PLHT189CSBB (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.