LG Reduced oven heating performance

LG oven takes excessively long to preheat or never reaches set temperature.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Partially failed bake element, Broil element not operating during preheat, Weak gas igniter (gas models), Poor door seal

How to Fix / Troubleshooting

Safety first: Turn off power and gas (for gas models) before testing components.

  • Check elements (electric): Visually inspect bake and broil elements for damage. Test resistance and replace any weak or open elements.
  • Check igniter (gas): Observe the igniter; if it glows weakly or takes more than 60–90 seconds to light the burner, replace the igniter.
  • Door seal: Inspect the door gasket for gaps or compression. Replace if not sealing properly.
  • Rack position and load: Avoid blocking airflow with large pans or foil on the bottom of the oven, which can slow preheat.
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Repair Difficulty

Medium 3/5

Required Part

Bake Element, Broil Element, or Oven Igniter
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