HomeBrandsLGRefrigeratorser ds
er ds
Moderate
LG · Refrigerators
Defrost Sensor Error
Quick Answer
Error code Er dS on your LG Refrigerators means: Defrost Sensor Error. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
LRDCS2603SLRFXS2503SLRMVC2306SLRMVS3006SLRSOS2706SLRSXS2706VLTCS20020S
Likely Causes
  1. Defrost temperature sensor (thermistor) has failed
  2. Sensor wiring has an open circuit or short to ground
  3. Sensor is encased in ice and providing inaccurate readings
  4. Connector at the main control board is loose or corroded
How to Fix It
1
Unplug the refrigerator and access the evaporator area by removing the freezer rear panel
2
Locate the defrost sensor, typically clipped onto the evaporator tubing
3
If the sensor is encased in ice, carefully defrost the area and then test the sensor
4
Measure the sensor resistance with a multimeter; at 32 degrees Fahrenheit it should read approximately 16,000 ohms
5
Replace the defrost sensor if readings are out of specification
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Defrost sensor/thermistor (LG part #6323JA2002K)
Sensor mounting clip
Related Error Codes
Er IFEr FFEr CFEr COEr rS
Video Guides
Loading video guides…
Search more on YouTube →