Well,for the first time ever ,I mistakenly pushed the noise reducer button and it actually worked! In fact the fan shuts off but it only stopped for less than a minute and started back up again. Funny thing is ,it doesn't work all the time and when it does work, 1 push makes it a little quieter and two pushes turns it off,but still only briefly. I bet I'm not the only one who wonders what the point of this feature is....unless mine isn't working properly. Oh ,and by the way,my steel burn pot is cracking down the middle. Warranty maybe?