E16
Zanussi
Internal Communication Error Between Boards
Microwave shows E16 and may shut down or refuse to start; often associated with fan or heater operation on combination models.
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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
Loose harness between main PCB and power board, Faulty sub-PCB (e.g., inverter or heater board), Electrical noise or surge damage, Corrupted communication bus
How to Fix / Troubleshooting
Safety first: Disconnect from mains.
- Power reset: Unplug for 10 minutes, then reconnect and test.
- Inspect inter-board wiring: Remove the cover and locate harnesses between the main control PCB and any secondary boards. Reseat all connectors firmly.
- Check for damage: Look for burnt connectors, melted insulation, or signs of overheating on any sub-boards.
- Replace faulty board: If wiring is intact and E16 persists, the affected sub-board or main PCB may need replacement.
Due to complexity, this repair is best handled by a Zanussi service technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Power/Inverter PCB
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