myenergi High Inrush / Voltage Dip on Supply

Zappi causes noticeable flickering of house lights 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

Weak supply or high impedance service cable, Large step change in load when contactor closes, Loose neutral or line connection, Undersized supply cable to Zappi

How to Fix / Troubleshooting

Safety first: Significant flicker can indicate supply issues that affect the whole installation.

  • 1. Observe severity: Mild, brief flicker can be normal; strong or prolonged flicker warrants investigation.
  • 2. Check terminations: Have an electrician tighten all main supply and Zappi feed connections, especially neutrals.
  • 3. Verify cable sizing: Ensure the supply cable to the Zappi is correctly sized for the current and length.
  • 4. Reduce step load: Temporarily lower the Zappi’s max current to see if flicker reduces.
  • 5. Utility involvement: If flicker persists, your service cable or transformer may be undersized; contact your electricity provider.
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Repair Difficulty

Medium 3/5
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