Land Rover
Excessive Electrical Noise / Vibration
Land Rover EV charger makes a loud humming or buzzing noise during charging, louder than normal relay or contactor sounds.
Advertisements
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.
Advertisements
Possible Causes
Loose main contactor mounting, Contactor coil operating at incorrect voltage, Vibrating transformer or inductor in power supply, Resonance due to loose enclosure panels
How to Fix / Troubleshooting
Safety warning: Noise alone is not always dangerous, but it can indicate a failing component. Isolate power before opening the unit.
- 1. Compare to normal: Some hum is normal. If the noise is new or significantly louder, proceed with inspection.
- 2. Check mounting screws: With power OFF, open the charger and ensure the main contactor and any transformers are firmly mounted to the backplate.
- 3. Inspect for damage: Look for cracked plastic on the contactor or loose laminations on transformers/inductors.
- 4. Tighten enclosure screws: Ensure the front cover and any internal shields are securely fastened to reduce resonance.
- 5. If noise persists or worsens: Have a technician evaluate the contactor and PSU components. Replace the main contactor or PSU module if excessive vibration is due to internal failure.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Main Power Contactor / PSU Transformer or Inductor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements