Lg Oven Error F5

⚡ Quick Answer: The LG oven F5 error indicates a malfunction in the temperature sensor, specifically a thermistor fault, which may detect a short circuit or an open c... ⚠️ Difficulty Varies

What Does Error F5 Mean?

The LG oven F5 error indicates a malfunction in the temperature sensor, specifically a thermistor fault, which may detect a short circuit or an open condition. This error often results in erratic temperature readings, causing inconsistent cooking results and may disable heating functions. The issue typically arises during preheat or cooking cycles, necessitating inspection of the temperature sensor and its wiring harness for faults.

Common Symptoms:

  • Oven display shows F5 error code
  • Oven may disable heating or normal operation when the code is present
  • Occurs during or shortly after preheat or cooking cycles

Possible Causes

  • Oven temperature sensor (thermistor) shorted (medium)
  • Sensor wiring harness issue (open or short) (medium)

How to Fix Error F5

DIY Fix Basic power reset to clear transient faults

  1. Turn off the oven at the circuit breaker or unplug it.
  2. Wait at least 1–2 minutes to allow control board capacitors to discharge.
  3. Restore power and check if the F5 error reappears.

Technician Only Inspect and test temperature sensor and wiring

  1. Disconnect power to the oven at the breaker.
  2. Access and visually inspect the oven temperature sensor and associated wiring harness for signs of damage, corrosion, or loose connections.
  3. Use a multimeter to measure the sensor resistance at room temperature; compare to expected thermistor values.
  4. If the sensor reads out of range or is shorted, replace it with the correct OEM part.
  5. Verify wiring integrity; repair or replace if open or shorted.
  6. After repair, restore power and verify normal operation without F5.

Parts needed: Oven temperature sensor (thermistor), Wiring harness/connectors

🛑 When to Call a Pro:
  • The F5 error persists after a power reset.
  • You are uncomfortable performing electrical diagnostics on the oven.
  • There is visible damage to wiring or the control board.

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 10-30 ohms
part_number LG EBF49827801
voltage_rating 120V AC

Common Questions

What does F5 error mean on LG oven?

The F5 error indicates a malfunction in the oven's temperature sensor, leading to erratic cooking temperatures.

Can I fix LG oven F5 error myself?

Yes, you can perform a basic power reset to clear transient faults before seeking further repairs.

How much does it cost to fix F5 error?

Repair costs range from $40–$150 for parts and $100–$300+ for technician labor, depending on your region.

When should I call a technician for F5?

Call a technician if the F5 error persists after a power reset, if you're uncomfortable with electrical diagnostics, or if there's visible damage.

Data last verified: 2026-01-11

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