Traditional Culture Encyclopedia - Weather inquiry - It's very cold in recent days, and the fan makes a harsh sound for the first time every day, but just restart it. What's going on here?

It's very cold in recent days, and the fan makes a harsh sound for the first time every day, but just restart it. What's going on here?

The lubricating oil on the fan shaft was frozen in the sky, so when it was first started, poor lubrication caused the fan to make a harsh sound. As long as you drive for a while, the lubricating oil will melt.

If you don't want to put up with this noise, you can drop one or two drops of good quality lubricating oil (such as sewing machine oil) on the fan shaft to solve it.