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LG Oven Error Codes

Lg Oven Error Code: F4

Error Code points to an issue with the oven thermistor. The thermistor is a temperature-sensing component responsible for regulating the oven’s temperature. When it remains open for an extended duration during the cook cycle, it can disrupt the cooking process.

  1. Immediate Action: Upon encountering Error Code, pause your cooking and ensure the oven is turned off via the control panel. Safety should always be a priority.
  2. Thermistor Inspection: Inspect the oven’s thermistor for visible issues. Look for loose wiring, damaged components, or any signs of malfunction. An open thermistor indicates an unintended break in the electrical circuit.
  3. Check the Wiring: Examine the wiring connections of the thermistor. Ensure that the wiring is correctly connected and that there are no frayed or damaged wires.
  4. Resistance Testing: You can test the resistance of the thermistor using a multimeter. Refer to your oven’s user manual for the specific resistance values expected for your model. If the resistance readings don’t align with the expected range, it’s indicative of a malfunctioning thermistor that may need replacement.
  5. Reset the Oven: After addressing potential issues, reset the oven by turning it off and then back on. Observe if the error code reappears. Sometimes, a simple reset can resolve minor thermistor-related problems.


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