The 249FF is an undercounter all-freezer from Sub-Zero’s discontinued 200 Series, with a one-piece interior, an interchangeable door hinge, and a four-sided magnetic gasket. Its material was captured between 2001 and 2006, and it was sold before that.
Heavy frost building up through the compartment is the issue reported most on a 249FF, and it’s often connected to a defrost cycle that isn’t completing, which leaves ice sitting on the evaporator instead of clearing. A unit running constantly without ever cycling off is the other common call — check the door seal and defrost timer before assuming the compressor itself has failed.
Key Features
- Undercounter all-freezer
- One-piece interior, removable wire shelves, interior light, interchangeable door hinge, four-sided magnetic gasket, front venting with removable kickplate
- 200 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 — a pattern documented for the 249FF.
Most Common Issues on This Model
Heavy frost building up through the compartment
Defrost cycle not completing, leaving ice on the evaporator
Unit running constantly without cycling off