Operation

Microwave oven does not startPower cord is unplugged, door is open, or cooking time has not been set.Plug in power cord or check for a blown circuit fuse or a tripped main circuit breaker.Close oven door.Set cooking time.Timer function started.If the display shows a time counting down but the oven is not cooking, check to see if a Timer function has been started instead of a cooking function.Oven light does not workPower cord is unplugged.Plug in power cord.Arcing or SparkingCookware is not microwave safe, or the oven is being operated while it is empty.Use microwave-safe cookware. When in doubt, test cookware before use.Do not operate oven while it is empty.Wire twist-ties have not been removed from paper or plastic bags, or the metal rack was installed improperly.Remove wire twist-ties from paper or plastic bags.Place the rack securely in the four plastic supports.Incorrect Time of DayPower interruption.Reset the time. See Setting the Clock section to reset time of day.Unevenly Cooked FoodsCookware is not microwave safe, or cook settings were wrong.Test cookware to make sure it is microwave safe.Do not cook without the glass tray.Turn or stir food while cooking.Defrost food completely before cooking.Use correct cook time and power level.Check position of aluminum strips used to prevent overcooking.Overcooked FoodsCooking settings and methods are wrong.Change cook time or power level.Undercooked FoodsCookware is not microwave safe, or cook settings were wrong.Test that cookware is microwave safe.Defrost food completely before cooking.Change cook time or power level.Make sure that ventilation ports are not blocked.Improper DefrostingCookware is not microwave safe, or cook settings were wrong.Test that cookware is microwave safe.Change defrost time or weight.Turn or stir food during defrost cycle.Moisture collects on oven window or steam comes from oven ventThis happens when cooking foods high in moisture.This is normal.

Wi-Fi

Trouble connecting appliance and smartphone to Wi-Fi networkThe password for the Wi-Fi network was entered incorrectly.Delete your home Wi-Fi network and begin the connection process again.Mobile data for your smartphone is turned on.Turn off the Mobile data on your smartphone before connecting the appliance.The wireless network name (SSID) is set incorrectly.The wireless network name (SSID) should be a combination of English letters and numbers. (Do not use special characters.)The router frequency is not 2.4 GHz.Only a 2.4 GHz router frequency is supported. Set the wireless router to 2.4 GHz and connect the appliance to the wireless router. To check the router frequency, check with your Internet service provider or the router manufacturer.The appliance and the router are too far apart.If the appliance is too far from the router, the signal may be weak and the connection may not be configured correctly. Move the router closer to the appliance or purchase and install a Wi-Fi repeater.During Wi-Fi setup, the app is requesting a password to connect to the product (on certain phones).Locate the network name which starts with "LG" under Settings > Networks. Note the last part of the network name.If the network name looks like LGE_Appliance_XX-XX-XX, enter lge12345.If the network name looks like LGE_Appliance_XXXX, enter XXXX twice as your password. For example, if the network name appears as LGE_Appliance_8b92, then you would enter 8b928b92 as your password. In this instance, the password is case sensitive and the last 4 characters are unique to your appliance.