Microwave will not start at all; display is blank and no lights or sounds when door is opened.
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
Safety: Unplug the microwave before any inspection. Do not open the cabinet.
User checks:
- Verify outlet: Plug another device into the same outlet to confirm power. Reset any tripped breakers or GFCI outlets.
- Inspect power cord: Check the LG microwave's power cord for cuts, burns, or kinks. If damaged, do not use the unit.
- Try another outlet: Move the microwave to a known-good outlet on a different circuit.
If the unit remains completely dead, an internal fuse or thermal cutoff may have opened due to a fault. These components are inside the high-voltage area and must be tested and replaced by a technician.