Sub-Zero 7016004 Defrost Heater Assembly – SVCE

The Sub-Zero 7016004 Defrost Heater Assembly is a genuine OEM component responsible for removing frost accumulation from the evaporator during scheduled defrost cycles. Proper defrost operation is essential to maintain airflow, consistent temperatures, and efficient refrigeration performance.
A failed defrost heater can lead to heavy ice buildup, restricted airflow, warm refrigerator temperatures, excessive compressor runtime, and water leakage caused by improper ice melt. Replacing the heater assembly restores normal defrost operation and protects the refrigeration system from long-term damage.
This part is designed specifically for early-production Sub-Zero 590, 680, and 690 models and must be selected strictly according to serial number range.

Compatible With:
• Model 590
– Use regardless of serial number
• Model 680
– Use prior to Serial #1810000
– From Serial #1810000 to #2277174 → use 7016558
– Starting with Serial #2277174 → use 3070230
• Model 690
– Use prior to Serial #1810000
– From Serial #1810000 to #2269189 → use 7016558
– Starting with Serial #2269189 → use 3070230

⚠️ If you are uncertain about compatibility with your model, please provide your unit’s serial number for verification.