E18
Zanussi
Input Voltage or Line Frequency Error
Microwave shows E18; interior light and display may flicker or dim during operation.
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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
Supply voltage out of range, Loose mains connection inside unit, Faulty line filter board, Defective mains relay
How to Fix / Troubleshooting
Safety first: Disconnect from mains.
- Check supply: Verify that the microwave is connected directly to a properly grounded wall outlet with the correct voltage for your region.
- Avoid overloading circuits: Do not run the microwave on the same circuit as heavy appliances that may cause voltage drops.
- Inspect mains connections: With the cover removed, check the terminal block, line filter, and wiring for loose screws or burnt connectors. Tighten and replace as needed.
- Replace line filter board: If components on the filter board are burnt or cracked, replace the board with a Zanussi-compatible part.
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Repair Difficulty
Hard
4/5
Required Part
Mains Line Filter Board
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