
The 315I is an undercounter ice maker from Sub-Zero’s discontinued 200/300 Series, with a gravity drain and a 24″ depth-true cabinet that accepts custom panels. It produces clear, barrel-shaped cubes rather than the crescent ice most household makers turn out.
Production falling away gradually over weeks, rather than stopping all at once, is the issue reported most on a 315I, often a sign of scale or mineral buildup inside the system. Cubes coming out cloudy instead of clear, and no production at all after a filter or water supply change, are the other common calls on this model.
Key Features
- Undercounter ice maker with gravity drain
- 24 in (610 mm) depth-true, door accepts custom panels, produces high-quality clear ice that is barrel-shaped rather than crescent
- 200/300 Series undercounter generation, no longer produced
- OEM parts generally still available to order, though legacy items take longer to arrive than parts for a current model, specific to the 315I.
Most Common Issues on This Model
Production falling away over weeks rather than stopping outright
Cubes coming out cloudy instead of clear
No production at all after a filter or supply change

