E09
Wolf
Line Voltage or Power Input Error
Microwave displays E09 and stops mid-cycle; may restart and fail again.
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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
Low or fluctuating supply voltage, Loose power cord connection, Faulty outlet or house wiring, Internal line filter or relay failure
How to Fix / Troubleshooting
Safety first: Turn off the breaker before inspecting the outlet or cord.
Basic checks:
- Ensure the microwave is plugged directly into a properly grounded outlet. Do not use extension cords or power strips.
- Test the outlet with another high-wattage appliance to confirm it can supply stable power.
- Inspect the power cord for cuts, kinks, or burn marks. Do not use the unit if the cord is damaged.
If supply power is good:
- The internal line filter, relay, or control board may be detecting abnormal voltage.
- Contact a qualified technician to test the line filter board and control relays and replace any failed components.
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Repair Difficulty
Hard
4/5
Required Part
Line Filter / Power Input Board
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