What to do if the Ford Focus fan won t turn?

The solution to the Ford Focus car fan not turning: check whether the relay of the fan is in working condition, if the relay does not work, it is a fault state, and you need to replace the relay in time to solve the problem that the fan does not rotate.

The reason for the failure of the car fan may also be because the water temperature is not well controlled, generally in the case of low temperature, the water temperature sensor can not affect the generator to start the fan, so it will also affect the rotation of the car cooling fan. Therefore, the temperature of the water should be properly controlled and the requirements should be met.

The adjustment of wind speed needs to rely on the transformer, so when the current inside the transformer is small or there is a fault inside, it will affect the operation of the cooling fan. Therefore, it is necessary to check whether the current flowing through the transformer is within the normal range, and also check whether the part is normal.

First of all, touch the temperature of the upper and lower water pipes of the water tank with your hands to see if the temperature is the same, if the lower pipe is cold, it is a thermostat. The same water temperature depends on the insurance, and the insurance depends on the water temperature sensor (the cooling fan of the Focus without a temperature switch is controlled by a computer and does not require human intervention.)

The sensor detects that the temperature is too high and feeds back to the ECU, and the ECU instructs the fan to start cooling down) If there is no problem, pull out the fan plug and give it to the electricity to see if the motor is working If it does not work, it will be replaced, if the motor is okay, it is the matter of the radiator module (generally it will not be broken) The module is broken, and the single replacement module cannot be replaced, the reason for the failure of the module is that the radiator fan motor resistance is high and burns the module, so the assembly must be replaced!

There are three reasons why Fox cooling fans don't stop:

1. The cooling fan relay is sticky, that is, it cannot be separated from the working position, and the fan relay can be replaced.

Second, the water temperature sensor of the vehicle is faulty, the engine loses the water temperature signal, in order to avoid the engine has no heat dissipation function, the cooling fan will be rotated by default, and the water temperature sensor can be replaced.

3. Lack of cooling water, the same computer will often turn the fan in order to ensure the heat dissipation function of the engine, and add cooling water.

How car fans work:

1. The high and low speed of the car fan is controlled by the thermal switch (F18) "only", this switch has two gears, which is installed on the water tank to detect the water temperature. It gives two signals to J293, and J293 conducts different open circuits to control the high and low speed of the electronic fan.

2. Turn on the air conditioner, and both fans should be turned. However, it should be noted that the air conditioner and the electronic fan are two relatively independent systems, which are controlled by two computers, named J301 (air conditioner) and J293 (electronic fan) respectively. J301 just gives J293 a signal to force 2 electronic fans to start.

Other than that, there isn't much to do with it.

The reason why the Focus fan keeps turning: The long fan of the radiator may be due to a damage to the temperature control switch or the control unit of the fan, and an internal short circuit.

The automobile radiator is composed of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows inside the radiator core and air passes through the radiator. The hot coolant cools down as it dissipates heat to the air, and the cold air heats up by absorbing the heat emitted by the coolant.

Normally, when the car is cold (the engine is completely cooled), the engine does not rotate when it is started, in order to quickly reach the ideal operating temperature of 70-90 degrees. If the car has just stopped and opened the engine cover, it is rotating, the purpose is to dissipate heat.

The engine temperature is high, and sometimes even after the ignition is turned off, if the temperature is high, the fan will turn for a while.

Hello, according to your description, do you mean that when the car is hot, the electronic fan keeps turning at low speed, and not turning at high speed leads to poor heat dissipation, in this case, first you can turn on the air conditioner. Is the electronic fan still running at a low speed? If it is still running at a low speed, then it is recommended that you check it.

How big is the duty cycle signal that the computer sends to the electronic fan? If it is normal, then it is recommended that you check it. The electronic fan itself is mechanically faulty.

Hope it helps.

What's up with the Ford Focus cooling fan? How to deal with this, many people don't know. Now let's take a look!

1.When the coolant temperature is too high after parking, the fan will turn to protect the engine, so don't worry. However, if the fan rotates for a particularly long time, the engine temperature has already dropped, and the fan has been spinning, which may be the reason for the circuit connection.

You can try unplugging the wiring harness of the fan and cutting off the power supply separately.

2.If you find that the fan does not rotate, you can also follow the steps below: Does the water temperature meet the requirements?

Nowadays, most car radiator fans rely on electronic temperature control to work and scatter, so generally only when the water temperature in your car reaches the required temperature, the fan will start to rotate normally. If the temperature is too low, the radiator fan will not be able to turn. So, when your car radiator fan is not turning, the first thing to check is whether the water temperature meets the requirements.

Relay failure: If the water temperature meets the requirements and the car radiator fan still does not work, then it may be the relay of the fan. If the relay fails, the car radiator fan will not work either.

There is a problem with the temperature switch: If there is no problem with the above two aspects, then it is time to check the temperature switch. There are sometimes some faults in this place, which will also have a certain impact on the operation of the car radiator fan, so you should also pay attention to checking.

If the fan keeps spinning, you need to check whether your water temperature sensor, outdoor temperature sensor, and gearbox temperature sensor are normal now, and read the data stream to see if the temperature matches the actual temperature and whether it is too high. The second is to check the pressure switch of your air conditioner, if the pressure switch of this model is short-circuited, it will also cause the fan to rotate all the time, you can unplug the pressure switch to see if it will stop. Finally, you need to check whether your fan control module has a power supply and whether the signal cable is normal, if these are fine, then it is possible that your fan module is broken.

Hello, I am your exclusive technician, attentive, careful, attentive to answer your car questions, for you to find the corresponding problem solutions and solutions for you What is the reason why the Fox fan has been turning The following reasons are analyzed first, the internal fault of the fan is damaged second, the internal damage of the stool engine computer version is third, the signal distortion of the water temperature sensing slag starer is fourth, the pressure of the air conditioning pressure sensor is too high and the pressure does not match according to the above fault description and analysis, Therefore, first of all, it is necessary to determine the water temperature transmission such as the bridge sensor to follow up the air pressure sensor and the air conditioning pressure sensor and the air conditioning pressure switch, to see if their signal is normal, if it is normal, so in the case of reading whether there is a fault ** in the case of no fault **, you can directly lock the engine, and the inside of the computer board is damaged.