Lg Oven Error CF1

⚡ Quick Answer: The LG oven error code CF1 indicates a malfunction with the LF (Left Front) top temperature sensor, resulting in erratic temperature readings or a com... ✅ DIY Fixable

What Does Error CF1 Mean?

The LG oven error code CF1 indicates a malfunction with the LF (Left Front) top temperature sensor, resulting in erratic temperature readings or a complete failure to heat. This issue may cause the oven to stop functioning as a safety measure to protect its internal components. If the error persists, it usually signals an open or short circuit in the sensor wiring.

Common Symptoms:

  • CF1 appears on oven/range display
  • Oven may stop heating or shut down to protect internal components

Possible Causes

  • LF top sensor (cooktop/oven) circuit open or short (medium)

How to Fix Error CF1

DIY Fix Power cycle and basic check

  1. Turn off the oven and unplug it (or switch off at the circuit breaker) for several minutes.
  2. Plug the oven back in and power it on to see if the CF1 code clears.
  3. Ensure the oven/range has stabilized at room temperature before further use.

Technician Only Inspect and replace LF top sensor or repair wiring

  1. Disconnect power to the oven/range at the breaker.
  2. Access the sensor circuitry corresponding to the left front/top area (may require panel removal).
  3. Visually inspect wiring, connectors, and sensor for damage or signs of short/open circuit.
  4. Test the sensor and its circuit with a multimeter for proper resistance and continuity.
  5. Replace the sensor and repair any damaged wiring as needed.

Parts needed: LF top sensor (temperature sensor), Wiring harness/connectors

🛑 When to Call a Pro:
  • If the CF1 code persists after power cycling
  • If visible wiring damage or sensor faults are detected
  • If you are not comfortable performing internal electrical diagnostics

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 10-30 ohms
part_number LG 6323A20032A
voltage_rating 120V AC

Common Questions

What does CF1 error mean on LG oven?

CF1 error indicates a malfunction in the left front temperature sensor, causing erratic heating.

Can I fix LG oven CF1 error myself?

Yes, you can try power cycling the oven and checking for room temperature stabilization.

How much does it cost to fix CF1 error?

The estimated cost to fix the CF1 error ranges from ¥5,000 to ¥20,000 for parts only.

When should I call a technician for CF1?

Call a technician if the error persists after power cycling or if you notice wiring damage.

Data last verified: 2026-01-10

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