LG Ovens & Ranges

Error Code F19

Lower oven no heating

Moderate

Address soon - your appliance may not work properly

Also displayed as: F19

How to Fix

  1. 1

    Unplug the unit.

  2. 2

    Check if any connector is disconnected or loose: check all electrical wiring of Main PCB and igniter wiring.

  3. 3

    If connector is loose, reconnect and retest.

  4. 4

    Check resistance of convection bake igniter: Normal = 45–400 Ω at room temperature. If infinite (open), replace the failed convection bake igniter.

  5. 5

    Check lower thermistor resistance: Normal approximately 1.09 kΩ at 77°F (25°C). Check at CN60 pins 4 and 5, and CN61 pins 5 and 6 of Main PCB. If abnormal, replace the oven temperature sensor.

  6. 6

    Plug in unit and verify thermistor in test mode. Display should show current oven temp between 70°F and 90°F at room temperature.

  7. 7

    Confirm the oven gas shut-off valve behind the range is fully open.

  8. 8

    If igniters and sensor are normal but F19 persists, 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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