What is a symptom of the radiator fan not working?

Engine overheating, The primary purpose of the radiator fan is to maintain the temperature of the engine within the optimal range. If the fan is not working, the engine may overheat, leading to potential damage to the engine components.
Coolant boiling,Without the assistance of the radiator fan, the coolant may reach its boiling point, causing it to boil and potentially leading to steam being released from the radiator.
Air conditioning performance issues,The radiator fan also plays a crucial role in cooling the air conditioning condenser. If the fan is not working, the air conditioning performance may be affected, resulting in poor cooling performance inside the vehicle.
Visible damage or irregular sounds,Physical damage to the fan, such as broken or bent blades, may also result in unusual sounds while the engine is running. A damaged fan may produce grinding, squealing, or scraping noises.
Check engine light, In modern vehicles, a malfunctioning radiator fan can trigger the check engine light to illuminate on the dashboard. This warning light indicates that there is a problem within the vehicle's engine management system, which could be related to the cooling system.