One of the most important parts of cooling system in a vehicle is the electric fan. A single electric fan may not be enough to maintain the engine temperature since it may not provide enough airflow. That is why many people choose to install a dual electric fan instead. However, wiring a dual electric fan can be tricky because of its complicated wiring diagram. In this article, we are going to discuss the detailed dual electric fan wiring diagram and how to install it properly.
How Does a Dual Electric Fan Work?
A dual electric fan has two fans installed side by side on the radiator. These fans push the hot air out of the engine compartment and pull the cooler air into the radiator. This helps to maintain the engine temperature at an optimal level. A dual electric fan can be controlled by a temperature sensor or a manual switch. A temperature sensor turns on the fans when the engine temperature reaches a certain level. A manual switch, on the other hand, allows the driver to turn on the fans whenever needed.
Temperature Sensor
A temperature sensor is a device that senses the engine temperature and sends a signal to the controller to turn on the fans. The controller then sends a signal to the fans to turn on. There are two types of temperature sensors: the probe-type and the thread-in type. The probe-type is installed into the radiator hose, while the thread-in type is installed into the engine block near the thermostat.
The probe-type temperature sensor is easier to install since it does not require any drilling or tapping. However, it may not give an accurate temperature reading since it measures the coolant temperature instead of the engine temperature. The thread-in type temperature sensor, on the other hand, gives a more accurate temperature reading since it measures the engine temperature directly.
Manual Switch
A manual switch is a switch that allows the driver to turn on the fans manually. This is useful when driving in heavy traffic or when the engine is idling for a long time. The manual switch can be installed on the dashboard, under the steering wheel or anywhere convenient for the driver.
Wiring Dual Electric Fan
Wiring a dual electric fan can be tricky since there are several components involved. There are two types of wiring: the standard wiring and the relay wiring. The standard wiring is simpler but less efficient. The relay wiring is more complicated but more efficient.
Standard Wiring
The standard wiring consists of a switch, a fuse, and two wires. The switch is connected to the battery positive (+) terminal through a fuse. The two wires are connected to the two electric fan motors. When the switch is turned on, the electricity flows from the battery through the switch, through the fuse, and to the two electric fan motors. The motors then turn on and start to spin.
Relay Wiring
The relay wiring consists of a temperature sensor, a controller, a relay, a fuse, and several wires. The temperature sensor sends a signal to the controller when the engine temperature reaches a certain level. The controller then sends a signal to the relay to turn on. The relay connects the battery positive (+) terminal to the electric fan motors. The fuse is used to protect the wiring from overheating.
FAQ
| Question | Answer |
|---|---|
| How do I know if my engine needs a dual electric fan? | If your engine temperature rises above the normal operating temperature, or if you notice that your engine is overheating, then you may need a dual electric fan. |
| Can I install a dual electric fan myself? | Yes, you can install a dual electric fan yourself if you have some basic knowledge of wiring and mechanics. However, if you are not confident in your abilities, it is best to have it installed by a professional. |
| What are the advantages of a dual electric fan over a single electric fan? | A dual electric fan provides greater airflow than a single electric fan, which helps to maintain the engine temperature at an optimal level. It also helps to reduce engine wear and tear, and increases the lifespan of the engine. |
| What are the disadvantages of a dual electric fan? | A dual electric fan requires more wiring and more components than a single electric fan, which makes it more complicated to install. It also requires more power from the battery, which can drain the battery faster. |
Conclusion:
A dual electric fan is an important part of the cooling system in a vehicle. It provides greater airflow than a single electric fan, which helps to maintain the engine temperature at an optimal level. Wiring a dual electric fan can be tricky, but with some basic knowledge of wiring and mechanics, it can be installed by a DIYer. A dual electric fan can be controlled by a temperature sensor or a manual switch, depending on the driver’s preference. Choosing the right wiring method and installing it properly are essential for the proper functioning of the dual electric fan.
