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LG Microwave display not working

If your LG microwave display is not working, start with the control module, especially if the screen is blank or dark and none of the control panel buttons respond correctly. A failed control module commonly requires replacement. If your LG microwave does not use a separate display board, a defective touchpad and control panel can cause the same problem. When only part of the display is missing, such as missing segments or dim characters, the display board is more commonly at fault. If the display is completely out, either the main control board or display board may be defective. Also verify that the microwave is plugged in, the wall receptacle has power, and the circuit breaker has not tripped. If the control board has power but the digital display remains off, the control board may need replacement. Enter your model number to find the exact replacement control module, touchpad, main control board, or display board for your specific LG microwave. Any repair that requires removing the outer cabinet must be handled carefully. The high-voltage capacitor stores a lethal charge even after the microwave is unplugged and must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, use a qualified technician.

01 - LG Microwave Control Module

A malfunctioning display could be caused by a defective control module. Try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, it is likely the control module is defective and will need to be replaced.
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02 - LG Microwave Touchpad and Control Panel

If the microwave does not have a separate display board, then the display not working is likely caused by a defective touchpad and control panel.
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03 - LG Microwave Main Control Board

If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
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04 - LG Microwave Display Board

If the display isn’t working at all, either the main control board or the display board could be at fault. If the display goes out partially, the display board is more commonly at fault.
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05 - Incoming Power Problem

Confirm the microwave is plugged in and there is power at the wall receptacle. You can plug another small appliance into the receptacle to confirm there is power. If there is no power, confirm the circuit breaker has not tripped.
Highly Likely

06 - LG Microwave Control Board

Since the control board is a part of the digital display, a defective board could be responsible for a microwave display not working, if the control board has power to it but the display is not working replace the control board.
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Common

07 - Power reset

A microwave display not working may be due to a power outage or power surge. Full operation can sometimes be restored through a power reset by either unplugging the unit's power cord for a few minutes and then plugging it back in or switching off the circuit breaker for the microwave then switching it back on.
Common

Frequently Asked Questions

Why is my LG microwave display not working?
Why is my LG microwave screen blank but the microwave has power?
Why is my LG microwave display missing segments or only partly working?
Can a bad LG microwave touchpad or control panel cause the display to stop working?
How do I find the correct LG microwave display board or control module?