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Why does the Envision's electric fan keep running?

2 Answers

CameronMarie

07/28/25 10:02pm

Envision's electric fan keeps running due to a damaged fan assembly. Methods to diagnose electric fan failure: First check the fault codes, then inspect the fan controller. Reasons for continuous electric fan operation: When the temperature gauge shows high readings (engine overheating), the AC electric fan will keep running. For automatic transmission vehicles, high transmission fluid temperature will also cause the electric fan to operate continuously. Working principle of electric fans: The car's electric fan is controlled by a thermostat. When coolant temperature rises to the upper limit, the thermostat activates power supply and the fan starts working. When temperature drops to the lower limit, the thermostat cuts power and the fan stops.

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Rich

08/12/25 2:35am

I've encountered similar issues while driving, which are usually caused by minor problems in the vehicle's cooling system. It could be that the coolant temperature is too high, causing the fan to run continuously to cool it down, especially during long summer drives or in traffic jams. Check if the coolant level is normal - if it's low or of poor quality, it can easily lead to overheating. Another possibility is a faulty temperature sensor that misreads normal temperatures as high, causing the control module to incorrectly keep the fan running. Additionally, if the relay gets stuck and can't disengage, the fan circuit remains powered, which is another common failure point. You can try some simple troubleshooting: wait a few minutes after turning off the engine to see if it stops, or check if any fuses are blown. If it keeps running, take it to a professional shop immediately. Prolonged operation like this could burn out the motor or cause engine overheating damage, leading to more expensive repairs. Regular maintenance like radiator cleaning and sensor checks during scheduled services are good preventive measures. I recommend not delaying - safety first.

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