Atlas Copco Cooling Fan / Airflow Fault

Generator cooling fan does not run or airflow through radiator seems weak

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.

Possible Causes

Broken fan belt, Failed electric fan motor (if fitted), Loose fan hub, Blocked radiator fins

Safety first: Ensure the engine is off and cannot start automatically before working near the fan or belts.

Inspect belt: Check for broken or slipping fan belt and replace if worn. Adjust tension per engine manual.
Check fan blades: Ensure blades are intact and securely fastened to the hub.
Electric fan (if used): Test for voltage at the fan motor when engine is hot. Replace motor or relay if not operating.
Clean radiator: Blow out dust and debris from radiator fins with low‑pressure air.

Medium 3/5

Radiator Fan Belt

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