What to Check First
- Reheating times vary depending on the freezing degree, size, and weight of food. If you use cookware larger than the glass plate or put in food that is too heavy, it will not rotate well so that the food will not be reheated evenly and it will take a long time.
- ➔ Use the oven after thawing the food.
- Reheating times may vary depending on the freezing degree, size and weight of food. Depending on the freezing degree of the food, use the product according to the recommended cooking method for the food after thawing it. Also, add or reduce cooking times according to your preferences.
- ➔ Do not open the door during cooking.
- Do not open the door frequently to prevent the heat inside the product from escaping.
- ➔ If not, clean the glass plate and rotation ring and reassemble them so that they do not tilt. They may not rotate properly due to a foreign object.
- Take out the glass plate and clean the inside of the oven with a dishcloth. Clean the glass plate and rotation ring thoroughly with water, dry them and replace them correctly so that they do not tilt.
- ➔ To check if there is a problem with the preheating function, put water in a cup and reheat it.
- If water is reheated well, you can judge that the product is operating normally. If not, call an LG service technician for a product inspection through a visit.
- This guide was created for all models, so the images or content may be different from your product.
Why This Can Happen
Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.
Safety and Model-Specific Guidance
Frequently Asked Questions
What should I check first for LG Microwave - Why is My Microwave Not Heating Properly??
Reheating times vary depending on the freezing degree, size, and weight of food. If you use cookware larger than the glass plate or put in food that is too heavy, it will not rotate well so that the food will not be reheated evenly and it will take a long time.
When should I stop troubleshooting and contact LG?
Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.
Does this guidance apply to every LG model?
Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.
Related LG Products
These model pages are linked because the stored category or exact model matches this Help Library topic.
LG CBEW3013BE — 30” Electric Cooktop with UltraHeat™ 2.5kW Element
Check out the 30” Electric Cooktop with UltraHeat™ 2.5kW Element in Black that features 4 electric radiant elements and UltraHeat™ 2.5kW.
LG CBEW3017BE — 30” Electric Cooktop with UltraHeat™ 3.2kW Element
Check out the 30” Electric Cooktop with UltraHeat™ 3.2kW Element in Black that features 5 electric radiant elements and UltraHeat™ 3.2kW.
LG CBGD2414S — 24 Inch Compact Gas Cooktop
Discover the 24-inch Compact Gas Cooktop that features 14K BTU Dual Burner and Stainless Steel Finish. Shop CBGD2414S from LG USA.
LG CBGJ3027S — 30 Inch Smart Gas Cooktop with UltraHeat™ 22K BTU Dual Burner and LED Knobs
Get the 30" Gas Cooktop (CBGJ3027S) with Removeable Cast-Iron Griddle Plate, Stainless Steel Finish, and White LED Illuminated Knobs for Premium Performance.
LG CBGS3028N — STUDIO 30 Inch UltraHeat™ Gas Cooktop with EasyClean®
Discover the LG STUDIO 30" Gas Cooktop that features UltraHeat™ Dual Burner and EasyClean®. Let your vibe shine with CBGS3028N from LG STUDIO.