Jaguar
Inrush Current / Voltage Sag on Supply
Charger causes noticeable lights dimming or flicker in the house when charging starts or stops.
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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
Charger on a circuit with insufficient capacity, Loose main supply connections, High inrush from contactor and power electronics, Shared circuit with sensitive lighting
How to Fix / Troubleshooting
Safety first: Voltage sags can indicate overloaded circuits; consult an electrician if in doubt.
- Step 1 – Reduce current limit: Temporarily lower the maximum charging current in the Jaguar app and observe if flicker reduces.
- Step 2 – Dedicated circuit: Ensure the Jaguar wallbox is on its own dedicated circuit as per installation requirements.
- Step 3 – Check main connections: Have an electrician tighten main service and distribution board connections.
- Step 4 – Stagger loads: Avoid running large appliances (ovens, heat pumps) at the same time as maximum-rate charging.
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Repair Difficulty
Medium
3/5
Required Part
House Supply Circuit to Jaguar Wallbox
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