Why does the car electric fan not rotate?

2 Answers
Mia
07/24/25 8:36am
Water temperature not reaching the requirement, relay failure, or thermostat switch issues. Below are the related explanations about the car electric fan not rotating: 1. Water temperature not reaching the requirement: Nowadays, most car radiator fans operate using electronic temperature control. Therefore, the fan will only start rotating normally when the internal water temperature reaches the required level. If the temperature is too low, the radiator fan will not rotate. 2. Relay failure: If the water temperature meets the requirement but the car radiator fan still does not work, the issue might be with the fan's relay. If the relay fails, the car's radiator fan will not function. 3. Thermostat switch issues: Check the thermostat switch, as faults in this component can sometimes affect the operation of the car radiator fan. Therefore, it is also important to inspect this part.
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VanSara
08/11/25 4:06am
As someone who has been driving for decades, I've found that an electric fan not spinning is no small matter—it's often a warning sign from the cooling system. The fan motor might be broken, or the temperature control switch could be faulty, preventing the fan from starting when the engine gets hot. Wiring issues are also common, such as loose plugs or blown fuses. If the relay is aging, it can also cause the fan to stop working. I recommend first checking the fuses and plug connections, which can be done with simple tools. An electric fan not spinning can lead to engine overheating, and at high speeds, it might cause cylinder seizure, leading to costly major repairs. Regularly checking the coolant and fan system can prevent problems. Remember, if the temperature gauge spikes while driving, pull over immediately to let the engine cool—safety first. I've seen many drivers ignore this, only to end up stranded on the road and spending unnecessary money.
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