Schneider Electric Mechanical Vibration Under Load

Charger enclosure vibrates noticeably when charging at full power.

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Possible Causes

Loose wall mounting hardware, Vibrating contactor or transformer, Resonance with building structure, Unbalanced three-phase load causing mechanical hum

How to Fix / Troubleshooting

Safety first: Turn off power before tightening any mounting hardware.

  • Check mounting screws: Ensure the EVlink charger is firmly secured to the wall or mounting post with appropriate anchors.
  • Add damping: If mounted on a thin wall, consider adding rubber washers or a backing board to reduce resonance.
  • Internal check: With power OFF, verify that internal components (contactor, transformers) are tightly fixed to their brackets.
  • Phase balance: For three-phase units, have an electrician verify that the load is balanced and supply voltages are symmetrical.
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Repair Difficulty

Easy 2/5
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