E10
Toshiba
Low Line Voltage / Power Supply Error
Microwave displays E10 and will not start; interior light may flicker.
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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.
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Possible Causes
Undervoltage from wall outlet,Loose power cord connection,Defective internal power supply board,Tripped internal line fuse
How to Fix / Troubleshooting
Safety first: Unplug the microwave before inspecting the cord or outlet.
Steps to resolve E10:
- 1. Test outlet: Plug another high-wattage appliance (e.g., kettle) into the same outlet to confirm stable power. If that device struggles, contact an electrician.
- 2. Avoid extension cords: Plug the Toshiba microwave directly into a dedicated wall outlet. Long or thin extension cords can cause voltage drop.
- 3. Inspect power cord: Check the cord for cuts, kinks, or burn marks. If damaged, stop using the microwave immediately.
- 4. Reset the unit: Unplug for 5–10 minutes, then plug back in and test. If E10 reappears, the internal power supply or line filter board may be faulty.
- 5. Internal fuse check (technician): A technician can safely open the cabinet, test the line fuse and noise filter board, and replace any failed components.
Warning: Do not attempt to replace internal fuses yourself; incorrect replacement can cause fire or shock.
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Repair Difficulty
Hard
4/5
Required Part
Power Supply / Noise Filter Board
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