Sub-Zero Defrost Thermostat 3
Genuine OEM Sub-Zero defrost thermostat/terminator.
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OEM part description
This factory-original Sub-Zero defrost thermostat/terminator helps regulate defrost heater temperature during the defrost cycle. It is a temperature-activated safety switch that ends the freezer's defrost cycle once the evaporator coil reaches a specific target temperature.
A failed defrost control can cause frost buildup, incomplete defrost, overheating protection issues, or poor cooling performance.
Part details
Genuine Sub-Zero defrost thermostat/terminator.