From reading the posts on here, I see that LG are notroious for having problems with maintaining the temp at 99.5. However, I'm having hard time just getting mine to set at 99.5. The closet I've come is getting it to 99.6. I don't have any eggs in yet. What I have tried so far: 1)Checking what the temp says, adjusting it, coming back and checking it again a good while later, at least 15min, if not longer. My temp is always off when I come back, usually somewhere bwt 99.0 and 100.4. (occasionally I have come back to see its much higher/lower 101. something or 98.something, but I can usually adjust it off those temps fairly easily). 2) Standing over it while reading the themorater and adjusting as necessary. This is most frustrating, b/c the bator won't pick one temp for me to adjust from. I'll read the temp, make a slight adjustment up or down, and the temp flucates for several min while I do nothing. There's a thermometer in my classroom, so I can see that room temp hasn't altered at all in the time I've been standing there. My room temp as a rule stays pretty stable (at least while I'm here at work) bwt 70-80 degrees. There are two other factors that might be affecting this. One, my bator is stored in a computer cabinet (there are plenty of holes in the back of the cabinet for air to flow through). I have to store the bator in here so I can assure that it it won't be disturbed over the weekend once we've put the eggs in it. Two, I missing the red plugs that came with bator. This bator was donated to my school by another school, and those are gone. I know missing my plug will effect my humidity, but I am trying to get my temp stable first, and then create a makeshift plug, and finally stablize the humidity. I could really use help asp on this, as I wanted to get the eggs set in the bator tomorrow, but will have to wait until next week, since I don't have the temp and humidity stable yet. Anyone who has sucess with these bators have some advice as to how to get the temp to 99.5 and stay there for more 3 seconds? Thanks!