Sub-Zero DEC1850FI Repair & Common Issues

The DEC1850FI is an 18″ Designer column freezer with ice maker, panel ready. Sub-Zero’s published specification for it lists 18″ wide x 84″ high, 8.8 cu ft upright freezer. It belongs to Sub-Zero’s current lineup: Sub-Zero’s own product listing still carried it as a current, non-legacy product when that listing was read on 22 September 2026. The seal and the way the door or drawer sits are checked first on this kind of unit, before the defrost heater or the thermistor is suspected.

Key Features

18" Designer column freezer with ice maker, panel ready
18" wide x 84" high, 8.8 cu ft upright freezer
Current generation, still in current production
Parts and service documentation are more readily available for a current model than for the legacy series

Most Common Issues on This Model

01

Unit running constantly without cycling off

02

Heavy frost building up through the compartment

03

Ice maker producing no ice, slow ice, or cloudy cubes

Error Codes Common to This Model

Own This Model? Book a Diagnosis.

Have the model number to hand when you book, so the technician arrives knowing which parts this model uses and where it usually fails.

Call (844) 526-6079 Schedule an Appointment

FAQ

Sub-Zero DEC1850FI FAQ

Current. Sub-Zero lists the DEC1850FI among its non-legacy products, so it sits at the newer end of the range rather than among the retired series.

Sub-Zero describes the DEC1850FI as an 18" Designer column freezer with ice maker, panel ready, and the published specification adds 18" wide x 84" high, 8.8 cu ft upright freezer.

With the unit switched off at its supply, check the gasket on the DEC1850FI for damage and make sure nothing is stopping the door or drawer closing fully. The defrost heater, thermistor and drain are measured by a technician rather than guessed at.

Sub-Zero DEC1850FI

Key Features

Most Common Issues on This Model

Error Codes Common to This Model

60-202

60-238

Own This Model? Book a Diagnosis.

Sub-Zero DEC1850FI FAQ