How Does A 2 Speed Radiator Fan Work

If the resistor breaks or has any issues it may cause the fans to only function on certain settings.

How does a 2 speed radiator fan work.

Another symptom of a possible problem with the cooling fan resistor is issues with the cooling fan speed. Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays. All three relays are ganged together for easy mounting. Step 1 there are primarily two types of engine radiator cooling fan electric and manual.

The switch turns on at 203 degrees fahrenhe. When the correct parameters are met a temperature switch or. Electric cooling fans have been with us for decades and although staged two and three speed fans are still part of the picture more and more vehicles are being equipped with pulse width modulated fans. I also show how i tested my cooling fan switches.

If you find that your vehicle is not cooling off properly the radiator fan might be the culprit. The blades on the flex fan are thin and are made of aluminum or stainless steel. A larger radiator a larger clutch fan and a shroud would probably keep your engine cool. The cooling fan resistor is meant to send power to the fans in steps so that the fans may operate at.

There s a simple reason. This article pertains to all vehicles. The low speed sensor triggers the fan at 180 degrees f while the second sensor engages the high speed side of the fan at 195 degrees f. This video shows how an normally open cooling fan switch works.

The cooling fan relay is the relay that controls the engine s cooling fans. When the vehicle reaches a certain speed the blades of the fan will flatten which will provide the engine with more power that it can use. Mechanical fans can sometimes work better than electric fans. Cooling fan speed issues.

For some however electric cooling fans are not only keeping the engine cooler in traffic but they keep the engine cool at stop lights too. The greater precision of pulse width modulation translates to a small but worthwhile increase in fuel economy.