How Long Do Sub-Zero Refrigerators Last?
Sub-Zero's published design target is about 20 years on average, but real lifespan varies widely with use, maintenance, installation, and repair history.
Category: Ownership & Planning
When to Repair or Replace a Sub-Zero Refrigerator
Use diagnosis, age, condition, and repair history—not a single symptom—to decide whether a Sub-Zero is worth repairing.