Defrost thermostat
Replaces WR50X28
Senses temperature so the fridge cycles on and off.
GE TBF14STH: 3 replacement parts, including the defrost thermostat (WR50X55) and the evaporator fan blade (WR60X114). Parts list from Sears PartsDirect, checked November 15, 2026.
Replaces WR50X28
Senses temperature so the fridge cycles on and off.
A stopped fan means warm sections and frost on the coils.
Replaces WR23X180
Door, lid and control switches stop a cycle when they fail.
1ThermostatWR50X55
2Fan bladeWR60X114
3Light switchWR23X37285Part numbers come from the Sears PartsDirect parts list for the GE TBF14STH (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.