An Electric motor: The motor is specifically designed for each vehicle to avoid overconsumption. It is controlled by the thermoswitch, the pressure switch or the ECU. It frequently has two speeds (low or high). A fan: If over-dimensioned, it may cause overconsumption causing a risk of fire.
How are electric fans controlled?
The fans are controlled either with a thermostatic switch or by the engine computer, and they turn on when the temperature of the coolant goes above a set point. They turn back off when the temperature drops below that point.
What controls the cooling fan?
A mechanical fan is connected to the engine directly by drive pulleys. This type of radiator fan is controlled by a thermal fan clutch that senses radiator heat. After sensing the heat temperature, the radiator fan turns on when the engine is running at a higher temperature.
What sensor controls the radiator fan?
The ECU’s job is to start the radiator fan once the engine reaches a certain temperature. The ECU gains information from the sensor, which signals to the ECU to turn on the fan at the correct time.
Does an electric fan increase horsepower?
The mechanical to electrical conversion in the alternator to drive the electric fan is not 100% efficient, so the engine will have to make slightly more power to provide the electric fan the same horsepower.
Are electric fans better than Clutchfans?
The clutch fan draws power from the engine due to the added load…. The electric fan saves power due to no load on the engine…. Clutch fans are better because they only apply a load at idle or low speed and don’t require wiring… Electric fans save power but add weight and require a lot of wiring…
What temp should my electric fan turn on?
Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.
How do I know if my fan control module is bad?
Symptoms of a Bad or Failing AC Fan Control Module
- Cooling fans running for a long time. The cooling fans under the hood of your car are designed to keep the components of the system at a lower temperature. …
- Cooling fans not running at all. If the cooling fans are not coming on at all, then this may also be a sign that the fan control module is damaged. …
- Weakened air flow.
Will a bad thermostat cause the fan not to work?
If the thermostat is stuck open (allowing coolant to flow) it can cause the engine to run cooler than normal so obviously the fan wouldn’t come on…..but not like the engine/coolant can be running too hot and the thermostat somehow effects the sensor reading or operation of the fan.
How do I know if my cooling fan relay is bad?
One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Should radiator fan run all time?
An electric fan SHOULD NOT run all the time. A mechanical fan WILL spin as long as the engine is running, but it will only ‘lock up’ when needed. … Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F.
Should radiator fan turn on when AC is on?
Both radiator fans should always run when the AC compressor is engaged. … To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees.
Which fuse is for the radiator fan?
The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator. To replace the cooling fan relay, there are two methods that we will cover for the positions mentioned above.
What is the benefits of electric fan?
A key advantage of electric fans is increased engine cooling and improved air conditioning cooling at idle, when it is most needed. In addition, replacing an engine-driven fan can increase horsepower and improve fuel economy as the engine drag from turning the fan is eliminated.
Will electric fan improve gas mileage?
In a normal pickup situation, even in high ambient temperatures, the electric fan system will only draw a maximum of about 5 horsepower from the engine. This significant savings improves fuel economy, and, in turn, reduces emissions while improving vehicle performance.
What are the advantages and disadvantages of electric fan?
Advantages and Disadvantages of an Electric Fan
Not only are they low cost, they also require a small amount of energy, which will cost you less in the long run. The price and cost of an electric fan is very affordable compared to air conditioners. They’re also easy to clean without need to call a specialists.