I have 2 LG's set up side by side in the shower stall of the second bathroom. 1 is a new forced air with an egg turner that I use for incubating. The temp in it stays stable at 99.5. The second one is an older one that I added a fan to to make forced air and I use it for hatching. The temp in it is eather too low, like about 96 or too high , about 101 and I can't get it adjusted to 99.5. I added a covered bowl of water (about 2 cups) but it didn't help. The temp adjustment nob feels loose compared to the other one. Thinking maybe it needs a new thermostat. Any sussestions?