LG LSG4513ST Error Code
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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91%
CONF
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Oven Relay Control Board
The relay board acts as the central switching station for the oven's heating circuits. If the specific relay responsible for the bake igniter fails to close or has pitted contacts, power is never sent to the gas ignition system. This results in zero thermal gain, triggering the F9 timeout code as the microprocessor detects no temperature rise from the thermistor.
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|
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5%
CONF
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Oven Temperature Sensor (Thermistor)
This component utilizes a Negative Temperature Coefficient (NTC) resistor to provide feedback to the control board. If the sensor is 'out of calibration' (excessive resistance), it may report a temperature significantly lower than the actual cavity state. If the board does not see the resistance value change enough to represent a move past 150°F within 5 minutes, it aborts the cycle for safety.
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|
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4%
CONF
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Oven Igniter (Glow Bar)
In gas ovens, the igniter must draw enough current to heat a bimetal strip inside the safety valve to allow gas flow. As igniters age, they may still glow but fail to reach the necessary amperage (3.2 to 3.6 amps) quickly enough. This delay prevents the burner from lighting within the controller's programmed 5-minute window, resulting in an F9 error.
SKU: MEQ61841001
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DIY Repair Guide
Watch exactly how to replace the Oven Relay Control Board.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
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