Oven produces excessive smoke during normal baking (not self-clean).

Safety first: Ensure good kitchen ventilation. If smoke is heavy, turn off the oven and open windows.

• Inspect interior: Once cool, remove racks and check the bottom panel and bake element for heavy grease or food buildup. Clean with a non-abrasive oven cleaner suitable for LG ovens.
• Avoid foil on bottom: Do not line the oven bottom with foil, as it can trap spills and cause smoke.
• Burn-in new oven: For new LG ovens, run an empty bake cycle at 400–450°F for 30–60 minutes with good ventilation to burn off manufacturing residues.
• Use proper cookware: Avoid using non-oven-safe plastics or low-quality nonstick pans that can smoke at high temperatures.