Asked by: Dochka Larrinoa
asked in category: General Last Updated: 31st May, 2020

What does the fan switch do?

A coolant fan switch is a small and very simple switch comprised of typically two wires. As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. The coolant fan will continue to run until the engine temperature cools down to a specific predetermined level.

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Also asked, what does the switch do on a ceiling fan?

The switch on your fan reverses the direction of rotation on your fan. So it can spin clockwise or counter clockwise. Why would you want to change the direction of your fan? It can do a lot to make you more comfortable in both the warm summer and the cool winter.

Also Know, when should the cooling fan come on? 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. If the fan does not come on, something in the control circuit is defective.

Similarly one may ask, should the fan switch be up or down?

It changes the direction of the blade rotation. In the winter, you actually want that switch in the up position, and in the summer, it should be in the down position as shown above. In the cooler months, having the blades circulating in a clockwise direction will create an updraft.

How do I know if my fan is going the right way?

Go to your ceiling fan and find the direction switch. Make sure it's set to counterclockwise (down) during the summer. You'll know if you set the fan correctly to counterclockwise because you'll feel cold air pushing down on you as you stand under the fan.

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