E16
Lucid Load Management / Derating Fault

Display shows E16; charger stops when another large load in the home turns on, or refuses to start at full current.

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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

Failed Lucid load management module, Incorrect CT (current transformer) installation on service conductors, Loose communication cable between charger and load controller

How to Fix / Troubleshooting

Safety first: Load management involves service conductors; only qualified electricians should adjust CTs or service wiring.

Steps:

  • Check configuration: In the Lucid app or installer menu, verify load management is configured correctly for your service size.
  • Inspect communication cable: Ensure the low-voltage cable between the Lucid charger and any external Lucid load controller is intact and firmly connected.
  • CT orientation: Have an electrician verify that Lucid current transformers are installed on the correct conductors and oriented as per arrows.

Resolution: Correct CT installation or replace the Lucid load management module if defective. After corrections, clear E16 by power-cycling and re-running any commissioning wizard.

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Repair Difficulty

Hard 4/5

Required Part

Lucid Load Management Module / Current Transformers
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