What Causes a Car's Cooling Fan to Run Continuously?

1 Answers
OGia
07/30/25 10:39am
If you notice the cooling fan running after just turning off the engine, you can wait for a while. The temperature of the coolant in the radiator drops slowly, and when the engine is first turned off, the coolant temperature hasn't decreased yet, so the cooling fan will continue to operate for some time before stopping. If the car has completely cooled down but the fan still keeps running, there may be a fault in the cooling fan assembly or its wiring. The working principle of the cooling fan is based on energy conversion: electrical energy to electromagnetic energy to mechanical energy to kinetic energy. Its circuit principles generally come in various forms, and different circuits result in varying fan performance.
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