Lucid charger makes loud humming or buzzing noises during operation.

Safety first: Turn OFF power before tightening any internal components.

Steps:

• Identify source: Stand near the Lucid charger while it operates (from a safe distance) to localize the noise to the contactor area or general enclosure.
• Check mounting: With power OFF and cover removed, verify that the main contactor and any large inductors/transformers on the Lucid power board are firmly mounted and not loose.
• Wall resonance: Ensure the charger is mounted securely to a solid surface; add spacers or damping if the wall is vibrating.

Resolution: Mild hum is normal, but if noise is excessive or accompanied by heat or smell, the Lucid contactor or power module may be failing and should be replaced.