LG Refrigerator

LG LTCS20020S

Model # LTCS20020S

The LTCS20020S is an LG top-freezer refrigerator, rated at 20 cu ft. Current model — LG’s own US product page still carries this model with an active status flag, read 24 September 2026. On this platform, the FF fault code is one of the more common reasons it gets a service call.

Service calls on this refrigerator most often trace to one of a short list: the FF, IF or dH fault codes. We confirm which one applies against the model and serial number before ordering a part.

Key Features

  • Frost-free cooling with a fan-driven air path between compartments
  • Electronic temperature control with a digital or touch display
  • Top-freezer refrigerator
  • Sold in 4 finish options on this platform
  • Rated at 20 cu. ft.

Most Common Issues on This Model

01

FF fault code — freezer fan motor

02

IF fault code — ice-fan fault

03

dH fault code — defrost heater fault, sometimes shown split as F dH

Error Codes Common to This Model

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FAQ

LG LTCS20020S FAQ

On this platform, FF points at freezer fan motor. Confirm the exact code shown before assuming it is the same fault another LG refrigerator would show for the same letters — LG does not use one fault-code scheme across every appliance line.

No — Sb is the Sabbath-mode indicator, not a failure. It is worth checking before booking a service call.

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