My Whisper 2 makes a ticking or cracking sound. What should I do?

A ticking or cracking sound can often be resolved by sliding the fan fully down and then back up again. In many cases, the sound disappears immediately.

If that does not help, extend the fan fully and apply a small amount of lubricant, such as WD-40, to the tube. Then move the fan up and down a few times. If the sound remains, please contact service@duux.com.