Microwave Ovens - Recent Questions, Troubleshooting & Support

I DON'T KNOW. IT MAY RESET TO FACTORY IF YOU UNPLUG IT FOR A MINUTE OR SO. HARD TO UNPLUG ? YOU COULD SHUT OFF AND ON AT THE HOUSE PANEL.

You could remove cover and check circuit board for blown fuse, be sure it's unplugged. If not the radio signal tube or device is bad, REPLACE IT.

Get a new one don't bother trying to fix it that sounds dangerous.

try this manual i found
https://www.manualslib.com/manual/765799/Lg-Lmv1683st.html?page=34

Replacing the control panel will cost as much as a new oven

ASK Google STARTING WITH THE MAKE

Disconnect motor power

The unit is in cook mode as soon as the door is closed because it is sensing there is still time left to be completed. Place a large bowl of water in the oven and allow the oven to start to heat the water. Press CANCEL after a few moments of operation . If this fails to stop the oven, the fault is in the motherboard. It has "shorted" and is in a permanent cook mode. Professional repair (read replace board) is required ...or replace oven if more economical.

No, replace it. You run the risk of fire.

t26925500-lg_oven_f11_code

IFB microwave ( which i have 30sc2) are directly imported from china, i find in many friends who bought this device are having a lot of problems, the microwave have major defect in the thin flim front membrane panel and the pcb board, after spending a 5 times with various issue the cost came to Rs 8700.00 not forgetting the repair done within warranty period, luckily i found a person who modified the front panel , replacing with MICRO SWITCH, the pcb was also modified relay, latter rotary switch front panel of Samsung and pcb was installed in place of old, now it had solved the problem, now use it only in convection and grill for nutrition reason. would like to help any one who has this problem.

the little motor under the table is toast