What Does This Error Mean?

Jackery Explorer fan noise during charging or heavy discharge is completely normal — the inverter and charger generate heat that must be cooled. Grinding or rattling noise is not normal and usually means debris has entered the fan or a bearing has failed.

Affected Models

Jackery Explorer 500
Jackery Explorer 1000
Jackery Explorer 1000 Pro
Jackery Explorer 1500
Jackery Explorer 2000 Pro

Common Causes

Normal cooling fan operation during AC charging or high-load discharge
Debris (dust, lint) lodged in the fan blades causing rattling
Fan bearing wear after extended use
Fan running in cold temperatures — brief louder operation on startup is normal
Fan at maximum speed due to high ambient temperature

How to Fix It

Confirm the noise is not during normal operation.

Jackery fans run when the unit is charging at full speed or discharging over 300W. A whooshing sound is normal cooling. The fan should slow down or stop within a few minutes after disconnecting the charger and all loads.
Inspect the fan vents for debris.

Look at the ventilation grilles on the side of the Jackery. Use a flashlight to check for dust bunnies, lint, or small objects in the fan area. Blow compressed air through the vents from a distance of 15 cm to dislodge debris.
Move to a cooler environment.

If the ambient temperature is above 30°C, the fan will run more aggressively and louder. Move the Jackery to a shaded, ventilated area. Fan speed should reduce within a few minutes.
Allow to cool and retry.

After removing all loads and chargers, give the unit 15 minutes to cool completely. Power off and back on. If the grinding or rattling noise persists at rest with no load, a bearing fault is likely.

When to Call a Professional

If the fan produces a grinding or clicking noise that does not stop after removing debris, the fan bearing has failed. Contact Jackery support for a replacement unit or warranty service.