Thermostat
Replaces WR50X21
Senses temperature so the fridge cycles on and off.
Seal kit
Replaces WR29X47
A gasket that doesn't seal lets warm air in and frost build up.
Fan motor
Replaces WR60X77
A stopped fan means warm sections and frost on the coils.
Light switch
Replaces WR23X164
Door, lid and control switches stop a cycle when they fail.
Evaporator fan blade
A stopped fan means warm sections and frost on the coils.
1ThermostatWR50X60
2Seal kitWR29X144
3Fan motorWR60X177
4Light switchWR23X37285Part numbers come from the Sears PartsDirect parts list for the GE TFF19DTB (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.