LG Ovens & Ranges

Error Code F16

Lower oven overheating

Moderate

Address soon - your appliance may not work properly

Also displayed as: F16

How to Fix

  1. 1

    Follow same diagnostic procedure as F6, but apply to lower oven sensor and lower oven relay circuits.

  2. 2

    Unplug the unit and check lower oven thermistor resistance at CN60 and CN61 of Main PCB. Normal: approximately 1.09 kΩ ±10% at 77°F (25°C).

  3. 3

    If thermistor is shorted, replace the lower oven temperature sensor.

  4. 4

    Check igniter relay resistance for lower oven burner circuits (Live): Normal = infinite; Abnormal = shorted. Shorted relay indicates Main PCB replacement needed.

  5. 5

    Check DLB relay (RY60): Normal = infinite; Abnormal = shorted. Shorted = replace Main PCB.

  6. 6

    Verify thermistor in test mode at room temperature (should read 70°F to 90°F).

  7. 7

    If all components check normal but F16 recurs, replace the Main PCB.

This Error Applies To

LG LDG431 Series Ovens & Ranges

Service manual exact match: LDG4313STService manual exact match: LDG4315ST

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