Why does my fan slow down and speed up?

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asked Jun 15, 2017 in Maintenance/Repairs by Janice (180 points)
My desk fan slows down and speeds up again? Is something wrong with my fan?

1 Answer

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answered Jun 15, 2017 by Shawn (36,990 points)
It's most likely due to a rise and fall in voltage. Voltage Drop is what it's called.

When your fan slows down the voltage coming into your house is probably dropping a little bit.

And then when it speeds back up again your voltage is returning to normal.

It's nothing to be worried about.

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