Charger’s internal fan is very loud, rattling, or does not spin.

Safety first: Turn OFF power before opening the charger. Moving fan blades can cause injury.

• 1. Listen and observe: During operation, note if the fan noise is grinding, rattling, or absent.
• 2. Clean fan (qualified): With power OFF and cover removed, use compressed air to blow dust off the fan and surrounding area. Hold the fan blades still while cleaning to avoid overspinning.
• 3. Check for obstructions: Ensure no wires or debris are contacting the fan blades.
• 4. Replace fan: If the fan does not spin freely by hand or remains noisy, replace it with the correct Besenergy-specified fan, matching voltage and airflow rating.

When to call a professional: For internal fan replacement, contact a qualified technician.