incubator won't hold tempature

I had the same trouble with my LG and basically the only thing that fixed the problem was to spot in the house to put it that keeps a pretty steady ambient air temperature. I had mine out in an insulated shed that I thought held a steady temperature but it turns out i was wrong. My bator temp was all over the place from 96 to 103 degrees. I VERY carefully moved the incubator and eggs into a corner our spare bedroom that is away from the windows/doors and since then it stays right between 99.4 and 101. If you can't find a place in your house where the ambient air temperature stays steady you're probably going to be fighting the incubator and adjusting constantly.

 

We cured that problem by finding a large box to contain it: an air conditioner box. We also put doorweatherstripping between the two halves, and weight the top down with a heavy candle. Added a computer fan too.
Holds steady now. If room temp really plummets - like the air conditioner goes on- I toss a blanket over the top of the box to eliminate any drafts.