Honda Radiator Fan Failure Judgment

- Jun 02, 2019-

Honda radiator fan failure judgment

Failure 1. During the exercise, the cooling fan does not turn?

Reason: 1; the engine water temperature does not reach the cooling fan starting condition, and the temperature is low. 2; can use the engine

The diagnostic device performs a functional test on the cooling fan. If the cooling fan can rotate normally, the line is normal, check the thermostat.

Fault 2. The car cooling fan does not turn to the air conditioner and does not cool.

the reason. First check the temperature control switch of the electronic fan. The switch has no problem to check the fault of the electronic fan itself. The normal operation of the electronic fan can dissipate the air conditioner evaporator to cool the air conditioning system.

Fault 3. Car engine cooling fan does not turn high

The reason is that the high engine water temperature is mainly caused by the fact that the electronic fan does not start. After the electronic fan is removed, the water temperature will be normal. If the electronic fan does not work, first check if the connector is in poor contact, check the power supply and grounding of the electronic fan, check whether the fan is stuck, check whether the fan motor is burnt, etc. These factors will cause the electronic fan to fail to start. It is recommended that the vehicle arrive in time. 4S shop maintenance, after troubleshooting, driving on the road.

Fault 4, the air conditioner cooling fan sounds loud.

The reason is to see if the fan has a place to grind the outer casing, check whether the fan fan page is deformed, and whether the bearing is damaged or not, and whether the fan has foreign matter.

Fault 5, after the flameout, the cooling fan frequently starts to cause the engine to cool down.

After the ordinary car is turned off, the cooling system also stops working, which often causes the temperature to rise after the engine is turned off, causing damage. Therefore, the current high-end car is equipped with an automatic cooling function. The power supply of the radiator is directly connected to the battery. After the flameout, the temperature of the engine is still very high, so the cooling fan still works for a period of time, and then stops after the temperature is cooled. High temperatures cause the car to ignite spontaneously.