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Error code reference

LG Refrigerator Error Code dS r

Refrigerator defrost sensor error-the refrigerator defrost sensor circuit is open or short-circuited.

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What the dS r error code actually means

Your LG refrigerator is showing an error because the sensor that monitors the defrost heater area in the refrigerator section is not sending a proper signal. This could be caused by a loose wire connection or a faulty sensor. Until the issue is resolved, the refrigerator may not defrost correctly, which can affect cooling performance.

Diagnostic procedure

The full dS r procedure

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1
First diagnostic step
Check Pin11 to Pin12 of CON6 for loose connection; if normal, remove housing and check Orange to Orange wires; measure resistance per temperature table.
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Most common causes of dS r

Ranked by how often they cause this code
  1. 1Loose or corroded connector at CON6
  2. 2Failed defrost sensor thermistor
  3. 3Damaged Orange-to-Orange sensor wiring
  4. 4Ice encasing the sensor or wiring
  5. 5Faulty main control board

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Questions people ask about dS r

What does dS r mean on a LG refrigerator?
The dS r code means the refrigerator compartment defrost sensor circuit has been detected as open or short-circuited by the control board. The defrost sensor is a thermistor that the board uses to monitor evaporator temperature during defrost cycles. This fault indicates the board is receiving an out-of-range or no signal from that sensor. The problem can be caused by a loose connector, damaged wiring, or a failed sensor.
Is it safe to keep using my LG refrigerator when dS r is displayed?
A dS r fault means the refrigerator compartment is not able to properly monitor its defrost cycle, which can lead to ice buildup on the evaporator or inadequate cooling over time. Food safety could be at risk if the refrigerator compartment temperature rises above safe levels. It is best to address the fault promptly and monitor food temperatures in the meantime.
Will resetting my LG refrigerator clear the dS r error code?
A power reset may temporarily clear the dS r code from the display, but the error will return if the underlying fault in the sensor circuit has not been corrected. Resetting without fixing the root cause means the refrigerator will continue operating without reliable defrost sensor data. The code should be diagnosed and resolved at the component level before considering the repair complete.
Can I fix the dS r error myself on my LG refrigerator?
Some steps are DIY-friendly, such as checking the CON6 connector for a loose or corroded connection and inspecting the Orange-to-Orange wires for visible damage. Measuring the defrost sensor resistance requires a multimeter and the ability to compare your reading against a temperature-resistance table. Replacing the sensor itself is a moderate repair that many experienced DIYers can handle, but if the control board is at fault, professional service is recommended.
How much does it cost to repair the dS r error on an LG refrigerator?
If the fix is simply reseating a loose connector, there may be no parts cost at all. A replacement defrost sensor typically costs in the range of $15 to $50 for the part. If a professional technician is needed for diagnosis and repair, total service costs including labor generally range from $100 to $300 depending on location and the extent of the repair required.

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