Sub-Zero Freezer Defrost Heater Terminator Repair Kit
Complete two-part repair for evaporator frost and defrost problems
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OEM part description
These genuine Sub-Zero defrost components work together in the freezer evaporator area. The heater removes frost during the defrost cycle, while the terminator provides temperature protection for the heater circuit. Expert Appliance Pro supplies both genuine components together as our technician-recommended repair kit.
Part details
When a defrost component fails, frost can continue building across the evaporator until airflow becomes restricted. This may cause warmer freezer temperatures, reduced air movement, heavy ice buildup, or extended compressor run time. Replacing the heater and terminator together addresses both related service components during the same repair.
Specifications / Important Notes:
Part Type: Freezer defrost heater and terminator repair kit
Set Includes: 1 heating element and 1 temperature-protection terminator
Heating Capacity: 460 watts
Operating Current: Approximately 4.0 amps
Heater Resistance: Approximately 26–32 ohms depending on model
Terminator Temperature Range: 35°F cut-in / 77°F cut-out
Installation Location: Freezer evaporator area
Repair Purpose: Addresses heater and terminator components in the freezer defrost circuit
Components: Genuine Sub-Zero parts
Kit Type: Expert Appliance Pro technician-recommended repair kit
Tech Tip: If the evaporator is heavily frosted, test the complete defrost circuit before installation. A wiring or control problem can create the same symptoms as a failed heater or terminator.