1602N bator temp dial NOT WORKING!!! Help

[sonew123]

Im on day 1 today and the temp is at 98.4-hasnt gone up since last night-I went to turn it up a little and it wont turn anymore-what do I do?? DId I not screw the darn disc in enough or something-I dont want to screw up my first hatch ever!!!

 

[yotetrapper]

Did you loosen the wing nut on top before you tried to turn it? If it's screwed in tight it wont let you turn it.....