Appliance Help HQ
Menu
ENEnglishESEspañolPT-BRPortuguês

Source-backed error-code guide

Reviewed

LG Range F11 / F38 Error Code

These codes report an electronics communication problem, not a user-setting mistake. Preserve the code and use the manufacturer-supported reset once; internal boards, inverter circuits, connectors, and harnesses are service territory.

Applies to LG range or oven

What the appliance detected

Detected condition

LG identifies F11 as a communication error and F38 as a communication error between the main board and inverter.

What may contribute

Possible causes

  • A temporary communication interruption between electronic controls.
  • A power event that caused the controls to lose communication.
  • An internal board, inverter, connector, harness, or related electronics issue if the code returns.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the exact code and recent events

    • Photograph F11 or F38 and note whether it followed a power outage, installation, or other unusual event.
    • Confirm the exact model because electronic architecture differs across LG ranges.

  2. Stop for electrical warning signs

    • Do not continue using the range for sparking, burning odor, scorching, unusual heat at controls, repeated breaker trips, or visible electrical damage.
    • Keep the circuit off and use qualified service when any of those signs are present.

  3. Power-cycle once as LG directs

    • For F11, use CLEAR/OFF before the reset when the control responds normally.
    • Turn the range circuit breaker off for 30 seconds, restore power once, and request service if F11 or F38 returns.

Actions not recommended

  • Do not open the control panel, inverter enclosure, rear cover, or other electrical compartments.
  • Do not reseat connectors, probe communication lines, test live voltage, or replace boards based on the code alone.
  • Do not keep cycling power to a recurring communication error.

When to stop and request service

  • Request appliance service if F11 or F38 returns after one documented 30-second power reset.
  • Use a licensed electrician when the code accompanies broader household supply or breaker problems.
  • Stop immediately for sparking, burning odor, scorching, repeated breaker trips, or visible electrical damage.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: September 23, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by LG.

Think this information has changed? Report a correction.