My office fan went from squeaking a little when I first turned it on, but then the quieting down once it warmed up, to full on constant high pitched whine that didn’t stop.
Last year I had ineffectually sprayed some white lithium grease in between the slots. It maybe helped delay the problem a little, but this time I decided to take it apart and see if I could actually get the grease in where it needed to go.
Turns out there’s a nice little nipple/reservoir at the top for this very purpose. The white lithium grease straw fit perfectly in the little hole at the top.
A few sprays later and a little cleanup made my cheap fan I bought back in 2010 whisper quiet once more.


Think we have the exact same fan.
Greased up the joint last summer and the high pitched whine has been gone since.
Good job!
Same. If its Hawaiian Breeze. Got mine around 09 and its still running perfectly fine.