Microwave displays E5 and will not start or stops shortly after starting.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Danger: Inverter-based microwaves contain very high voltages even when unplugged. Do not open the cabinet or attempt internal repairs.
User-level steps:
- Power reset: Unplug the microwave for 10–15 minutes, then reconnect and test a short cook cycle.
- Check for burning smell or unusual noise: If you notice any burning odor, buzzing, or arcing sounds, unplug immediately and do not use the unit.
Next steps: E5 typically indicates a failure in the inverter power module or magnetron. Both require specialized tools and safety procedures to diagnose and replace. Contact LG-authorized service for repair or replacement options.
Repair Difficulty
Required Part
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