Lg Refrigerator Error FS

⚡ Quick Answer: The LG refrigerator FS error indicates a malfunction in the freezer temperature sensor, which can lead to improper cooling and frequent frost buildup.... ✅ DIY Fixable

What Does Error FS Mean?

The LG refrigerator FS error indicates a malfunction in the freezer temperature sensor, which can lead to improper cooling and frequent frost buildup. This error occurs when the sensor fails to report accurate temperature readings due to a potential sensor failure, faulty wiring, or issues with the main control board. If the FS code appears, it’s essential to address it promptly to maintain optimal appliance performance.

Common Symptoms:

  • FS appears on display panel
  • Freezer and possibly refrigerator not reaching proper cold temperatures
  • Continuous or frequent frost buildup in freezer

Possible Causes

  • Freezer temperature sensor (thermistor) failure (high)
  • Faulty wiring or loose connection between freezer sensor and main PCB (medium)
  • Defective main control board failing to read sensor correctly (medium)

How to Fix Error FS

DIY Fix Initial checks and basic reset

  1. Disconnect refrigerator from power for ~5 minutes and reconnect to clear transient faults
  2. Ensure freezer door seals are tight and vents inside freezer aren’t blocked
  3. Observe whether FS reappears after power reconnect

Technician Only Diagnostic and repair of freezer temperature sensor circuit

  1. Unplug refrigerator and access freezer interior panel
  2. Locate and inspect the freezer temperature sensor and its wiring harness
  3. Test sensor resistance with a multimeter at known temperature points
  4. Repair/replace sensor if out of specification
  5. Inspect wiring continuity from sensor connector to main PCB
  6. If wiring is sound but FS persists, test or replace main control board

Parts needed: Freezer temperature sensor/thermistor, Main control board (if applicable), Wiring harness/connectors

🛑 When to Call a Pro:
  • If you cannot access internal freezer panels safely
  • If sensor tests and wiring seem correct but FS persists
  • If refrigerator stops cooling or other severe symptoms appear

Technical Specifications

wattage N/A
component Fan Speed Sensor
resistance 10-20 ohms
part_number LG EBF60620201
voltage_rating 120V AC

Common Questions

What does FS error mean on lg refrigerator?

FS error means there's a problem with the freezer temperature sensor, affecting cooling performance.

Can I fix lg refrigerator FS error myself?

Yes, you can try resetting the refrigerator and checking door seals and vents before calling a technician.

How much does it cost to fix FS error?

The repair cost for the FS error ranges from $50 to $300+, depending on parts and labor.

When should I call a technician for FS?

Call a technician if you cannot safely access internal freezer panels or if the issue persists after basic checks.

Sources & References

Data last verified: 2026-01-10

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