How to Fix LG Microwave Error E-10

Error Code: E-10 Difficulty: Moderate

Problem: A key on the control panel is shorted or stuck.

How to Fix E-10 Error (Step-by-Step)

1. Unplug the microwave from the power outlet and confirm the error stays cleared during a full test cycle.
2. Thoroughly clean the surface of the keypad with a soft cloth slightly dampened with a mild cleaner. Pay attention to any sticky residue around the buttons.
3. If cleaning does not solve the issue, you will need to access the control panel’s internal components. This requires removing the microwave’s outer cabinet.
4. Locate the flat, flexible ribbon cable that connects the keypad to the main control board.
5. Carefully unlatch the connector and disconnect the ribbon cable. Inspect the end of the cable for any corrosion or damage. Clean the contacts gently with a pencil eraser if they appear dirty.
6. Securely reconnect the ribbon cable to the control board, ensuring it is straight and fully seated in the connector.
7. If the error persists after these steps, the entire keypad assembly needs to be replaced.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Next Steps and Parts

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.