Hello! I have my diy incubator set up and acclimating. However it is having some temp variations. At first it was all over the place. This morning it would get up to 100 then shut off. It wouldn't turn back on until it dropped to 97. I played with it and from noon until 7 it would turn off at 100 and not drop below 99 while maintaining a steady humidity. All of the sudden though the temp spiked to 102 then it shut off let it drop to 100 and then came back on. Why is this? Our house stays at 68 degrees only reaching 70 in the afternoon on occasion, so I don't think room temp is affecting it. The thermostat is right next to the bulb with the computer fan blowing across the trigger bulb. What can I do to stabilize the temp?