E16
Zaptec
Configuration / Parameter Fault
Zaptec charger displays E16; app message: ‘Configuration error / invalid settings’ and charging is blocked
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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
Incorrect phase or current configuration in installer setup, Corrupted configuration data, Incompatible firmware and configuration profile, Misconfigured load balancing group
How to Fix / Troubleshooting
Safety first: Incorrect configuration can lead to overloading circuits.
Steps:
- Check installation profile: In the Zaptec installer app or portal, verify that the charger is set for the correct supply type (single/three-phase) and breaker rating.
- Reset to defaults: If available, perform a configuration reset and re-run the installation wizard.
- Firmware update: Ensure the charger is running the latest approved firmware for your region.
- If E16 persists: Contact Zaptec support for a remote configuration check. If they confirm hardware corruption, the main control board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board (Configuration Memory)
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