Automotive electronic fan does not turn the reason.
Reasons for a car's electronic fan not turning may include:
The water temperature does not meet the starting requirements: the radiator fans of modern cars mostly use electronic temperature control, and the fans will start only when the water temperature reaches a specific temperature. If the water temperature is too low, the fan will naturally not turn.
Relay failure: Even if the water temperature meets the requirements, if the relay of the fan fails, the radiator fan will not work properly.
Temperature control switch problem: The fault of the temperature control switch may also affect the operation of the radiator fan.
Tank temperature sensor failure: The failure of the water temperature sensor can affect the engine's power output, because the water-cooled engine relies on the coolant circulation to dissipate heat, and the proper operation of the temperature sensor is critical to this.
Fuse burn: When the fuse is burned, do not use copper wire or wire instead, you should go to the repair shop to replace the fuse.
Poor motor lubrication or overheating: These problems can reduce the load capacity of the motor, causing the fan to be unable to turn.
Smaller starting capacitance capacity or motor aging: These problems can cause the motor's starting torque to decrease or internal resistance to increase, affecting the rotation of the fan.
Solutions include checking whether the water temperature is up to requirements, replacing faulty relays or temperature switches, servicing or replacing fuses, adding lubricating oil, or replacing a new motor.
When does the car electronic fan start
When the water temperature rises to the upper limit
The automotive electronic fan starts when the water temperature rises to the upper limit.
When the engine temperature rises to a certain limit, the thermostat turns on the power, which causes the electronic fan to start working to cool the engine water tank. In addition, if the air conditioner is turned on, even if the water temperature does not reach the upper limit, the electronic fan may be activated to assist in cooling the condenser of the air conditioning system. This dual control mechanism ensures effective cooling of the engine and air conditioning system under high temperature or high load conditions.
Automotive electronic fan is suction or blowing air
The wind direction of the automotive electronic fan can be either suction or blowing, depending on the design of the vehicle and the layout of the engine cooling system. The main way to determine whether the electronic fan is sucking or blowing air is to observe the direction of the fan blade:
If the wind direction is from convex to concave, and the concave side is inward (towards the radiator), the fan is suction type, that is, the heat of the radiator is sucked from the inside to the outside along the direction of the natural wind.
If the wind direction is from concave to convex, and the concave side is outward (not towards the radiator), the fan is blowing, that is, blowing the heat of the radiator in the direction of the natural wind.
This design difference is to ensure that the air flows in the right direction and path for optimal heat dissipation. Different vehicle types and engine layouts may require different fan designs to optimize cooling efficiency.
The performance of the automobile electronic fan temperature control switch is broken
The performance of the car's electronic fan temperature control switch is broken mainly including the electronic fan behind the water tank can not work properly. When the temperature control switch fails, regardless of whether the coolant reaches the set temperature, the electronic fan may not start or stop working properly, which may cause the engine to overheat, which in turn affects the normal operation of the car.
The water tank of the car is usually located in the front section and can be observed by opening the engine cover. The temperature control switch uses the disc-shaped bimetal plate as a temperature sampling element and is installed in the temperature sensitive part of the water tank to control the start and stop of the fan by dynamically collecting the temperature change of the water in the water tank to protect the engine from overheating damage.
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