LG · Refrigerator (Top Freezer)

LG Refrigerator (Top Freezer) dS error code

Difficulty: Hard · Cost: $80–$200 · Duration: Requires professional service

The dS error means your LG refrigerator has detected a fault with the defrost sensor — the component that monitors temperature during the automatic defrost cycle. This error can appear in different variations depending on the model: F dS indicates the fault is in the freezer defrost sensor, while r dS indicates the fault is in the refrigerator defrost sensor. Without a working defrost sensor the appliance cannot manage ice buildup correctly, which can lead to cooling problems over time. There are no user steps to resolve this error — the unit requires a professional repair.

Common causes

Defrost sensor has developed a short circuit
Defrost sensor wiring has become disconnected or damaged
Freezer defrost sensor has failed — displays as F dS
Refrigerator defrost sensor has failed — displays as r dS

How to fix it

1

There are no user-serviceable steps for this error
2

Unplug the refrigerator to prevent further issues
3

Contact a qualified technician to inspect and replace the faulty defrost sensor