If only the Start button does not work, or if a foreign object or a cover is stuck, reheating may not be possible.
Remove the foreign object.
If other buttons do not work, call an LG service technician for a machine inspection.
Try this
A problem may occur if a foreign substance or a cover is stuck between the lightwave oven or microwave oven door and the body of the product.
1. Open the door and remove the foreign object or cover if any are present.
2. Put water in a cup and run the oven for 2 to 3 minutes to see if the water is heated.
This guide was created for all models, so the images or content may be different from your product.