It says turn it fully clockwise... I took that to mean as far as it would go . I did that and it heated up once it got to about 105 I bumped it down just a tiny bit< that knob is senstive> and it went down to about 101 as soon as it hit 101 I touched the knob just enough to make the light go off...
you need to get it up to temp befor you put eggs in then you have to wait for anywhere between 4-24 hours after you put the eggs in to get the temp back up , and you dont adjust it to get it up . the eggs are cooler then the bator and it drops the temp till the eggs get up to temp with the bator...