I can provide information based on general knowledge.
Sub-Zero is a premium brand known for its high-quality refrigeration appliances, and their refrigerators are built to be durable and long-lasting. The lifespan of a Sub-Zero refrigerator can vary depending on factors such as usage, maintenance, and model.
On average, a well-maintained Sub-Zero refrigerator can last anywhere from 15 to 20 years or even longer. Some owners have reported their Sub-Zero refrigerators lasting for over 25 years with proper care and occasional maintenance.
Keep in mind that individual experiences may vary, and there's no definitive guarantee of how long any specific appliance will last. Regular maintenance, such as cleaning the coils, replacing filters, and addressing any issues promptly, can significantly extend the lifespan of your refrigerator. Additionally, the specific model and usage patterns can also play a role in determining its longevity.