F8
Galanz
Input Power / Voltage Error
Microwave shows F8 and may not start; sometimes related to line voltage or internal power supply.
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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 high line voltage, Faulty line filter board, Loose power cord connection, Control board power supply fault
How to Fix / Troubleshooting
Safety: If you suspect electrical supply issues, consult a licensed electrician.
Steps:
- 1. Test outlet voltage: Use a multimeter to confirm the outlet provides the correct voltage (typically ~120V or ~230V depending on region).
- 2. Avoid extension cords: Plug the microwave directly into a properly grounded outlet.
- 3. Inspect power cord and plug: Look for damage or overheating. If damaged, have the cord or line filter assembly replaced.
- 4. Internal power supply: If F8 persists with correct line voltage, a technician should test the line filter board and control board power supply circuits.
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Repair Difficulty
Hard
4/5
Required Part
Line Filter Board / Power Input Board
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