Charger enclosure vibrates noticeably when contactor pulls in or during charging, causing rattling noises.

Safety first: Isolate mains before tightening internal components.

• 1. Check wall mounting:
  • Ensure all wall mounting screws are tight and appropriate anchors are used for the wall material.
• 2. Support cables:
  • Install cable clamps or supports so that heavy supply and output cables do not pull on the charger housing.
• 3. Tighten internal brackets:
  • Open the housing and tighten screws securing the contactor, power module, and terminal blocks.
• 4. Add damping if needed:
  • Use manufacturer‑approved rubber washers or spacers between housing and wall to reduce resonance.