LG microwave has no power
LG recommends checking the plug, GFCI/outlet, breaker, and outlet power before service.
What this guide covers
Symptoms: No power / display is off
This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.
Continue this exact diagnostic
Safe troubleshooting sequence
Start with the observations and external checks that can be verified without opening energized assemblies. The interactive version asks these in order and changes the path based on your answers.
- Check the power connectionLG recommends a direct, secure wall-outlet connection rather than an extension cord or surge protector.
- Check the outlet and breakerLG recommends resetting an applicable GFCI, checking the breaker, and verifying the outlet with another device.
What the answers can lead to
Restore the direct wall connection
A loose or indirect connection can cause a no-power symptom.
Evidence strength: Strong
The outlet or household circuit needs attention
If the outlet does not power another device, the issue is upstream of the microwave.
Evidence strength: Strong
The microwave itself needs service
Microwave ovens contain high-voltage components that can retain a dangerous charge even after the unit is unplugged. Appliance Verdict does not provide internal microwave repair instructions.
Evidence strength: Strong
When professional diagnosis is the safer next step
If the outlet does not power another device, the issue is upstream of the microwave. Microwave ovens contain high-voltage components that can retain a dangerous charge even after the unit is unplugged. Appliance Verdict does not provide internal microwave repair instructions.
Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.
Repair or replace?
A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.
Manufacturer sources
Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.
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