Originally Posted by SteveSueMac
I wonder if the temp dial has anything to do with it? I still don't know how that works (doh!) but try putting that dial all the way in the blue and then turn your speed knob to different settings. No clue if that will help but it's something to try and talk about with customer service if it doesn't work...
That's a temp sensor, like you said, turn it to the blue all the way if you want it to run constantly, more towards the red to have it turn off sooner. Of course, this is all dependent on the air temperature coming across the sensor. It drives me nuts too and I understand it. I just put it on so the fan always runs if it's turned on. If I get too cool, I turn it off.