Lg Oven Error F20

⚡ Quick Answer: The LG oven error F20 signifies a malfunction related to the temperature sensor or the door lock mechanism. This error typically prevents the oven fro... ⚠️ Difficulty Varies

What Does Error F20 Mean?

The LG oven error F20 signifies a malfunction related to the temperature sensor or the door lock mechanism. This error typically prevents the oven from heating properly, leading to inconsistent cooking temperatures or interruptions during cooking and self-cleaning cycles. Identifying the root cause can involve inspecting the temperature sensor readings or checking the door locking function for faults.

Common Symptoms:

  • Error code F20 displayed on oven panel
  • Oven fails to heat or operate normally when F20 appears
  • May interrupt cooking or self‑clean cycle

Possible Causes

  • Oven temperature sensor abnormal reading or out of range (medium)
  • Lower door locking or door lock mechanism fault (medium)

How to Fix Error F20

DIY Fix Basic checks and power reset

  1. Turn off the oven and disconnect power at the breaker or unplug.
  2. Wait at least 5 minutes, then restore power and try operating.
  3. Observe if F20 returns or if oven functions normally.

Technician Only Inspect and test temperature sensor and door lock assembly

  1. Access the oven cavity and locate the temperature sensor; test its resistance with a multimeter at room temperature and compare to specification.
  2. Inspect wiring harnesses to the temperature sensor and door lock motor/switch for continuity and damage.
  3. Test the door lock motor/switch in self‑clean or locking functions to verify lock/unlock operation.
  4. Replace defective sensor, wiring, or lock components as indicated by test results.

Parts needed: Oven temperature sensor, Door lock motor and switch, Wiring harnesses

🛑 When to Call a Pro:
  • Error persists after basic reset and checks
  • Door lock or sensor tests indicate failure
  • Wiring damage or uncertain diagnostics

Technical Specifications

wattage 3000W
component Heating Element
resistance 10-30 ohms
part_number LG EBF49827801
voltage_rating 240V AC

Common Questions

What does F20 error mean on LG oven?

F20 error indicates a malfunction in the temperature sensor or door lock, causing heating issues.

Can I fix LG oven F20 error myself?

Yes, try basic checks like power resets and inspecting the oven components.

How much does it cost to fix F20 error?

Repair costs range from $50 to $250, depending on parts and labor.

When should I call a technician for F20?

Call a technician if the error persists after a reset or if components test faulty.

Data last verified: 2026-01-10

User Comments (0)

Share your experience or solution below.

Be the first to comment!