I got my hovabator 2362N today and put it together...I did not understand about the wafer switch....I turned it untill it clicked like it said...well I did not know how many complete turns to go back....I dont thin I went back enough...plugged it in and it would not get higher than 70 so I turn the switch back apart and put it back together and it did not clikc again....did I break it?...can anybody help with this question?