Lg Refrigerator Error RS

⚡ Quick Answer: The LG refrigerator error code RS indicates a malfunction with the internal temperature sensor, often leading to improper cooling and unusual noises. ... ✅ DIY Fixable

What Does Error RS Mean?

The LG refrigerator error code RS indicates a malfunction with the internal temperature sensor, often leading to improper cooling and unusual noises. This issue can be caused by a faulty thermistor, wiring problems between the sensor and the main control board, or the control board itself not processing the sensor signal. If the refrigerator fails to maintain the correct temperature, further inspection and troubleshooting are necessary.

Common Symptoms:

  • Error code “rS” displayed on control panel
  • Refrigerator fails to maintain correct internal temperature
  • Possible reduced cooling performance in fresh-food compartment

Possible Causes

  • Faulty refrigerator temperature sensor (thermistor) (high)
  • Wiring harness issue between sensor and main PCB (medium)
  • Main control board not receiving/processing sensor signal (medium)

How to Fix Error RS

DIY Fix Reset refrigerator electronics

  1. Unplug refrigerator from power outlet
  2. Wait at least 5 minutes
  3. Plug back in and power on
  4. Observe if rS error reappears

Technician Only Inspect and test refrigerator temperature sensor

  1. Disconnect power to refrigerator
  2. Locate the refrigerator compartment temperature sensor inside fresh food section
  3. Visually inspect sensor and harness for damage or corrosion
  4. Test sensor resistance with a multimeter against manufacturer spec
  5. Replace sensor if defective

Parts needed: refrigerator temperature sensor (thermistor)

Technician Only Inspect wiring harness and main control board

  1. Disconnect power to refrigerator
  2. Check wiring harness from sensor to main PCB for continuity or damage
  3. Repair harness or connectors if faulty
  4. Test communication to main PCB
  5. Replace main control board if necessary

Parts needed: wire harness, control (main) board

🛑 When to Call a Pro:
  • Error persists after reset and basic checks
  • Temperature remains incorrect affecting food safety
  • Visible wiring damage or component failure suspected

Technical Specifications

wattage 200W
component Compressor
resistance 3-5 ohms
part_number LG 4681JA2007B
voltage_rating 120V AC

Common Questions

What does RS error mean on LG refrigerator?

RS error indicates a problem with the internal temperature sensor, affecting cooling performance.

Can I fix LG refrigerator RS error myself?

Yes, you can try resetting the refrigerator by unplugging it for 5 minutes before plugging it back in.

How much does it cost to fix RS error?

Repair costs for the RS error typically range from $30 to $120 for sensor replacement.

When should I call a technician for RS?

Call a technician if the error persists after a reset or if the temperature remains incorrect.

Sources & References

Data last verified: 2026-01-10

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