Now, I have to stare for a long time, but then it wiggles. I have worked out in the yard all day- I put an extension fence in around some of the chicken yard, now it is 6 foot tall all the way around. My daughter surprised me by doing the entire housework..all of it, while I was outside thinking how mean my kids are-because nobody would come outside and help me with the fence. I was so happy and guilt-ridden when I came in, that I treated them all to ice cream....came home and stared until I saw a wiggle. My temp went up to 101- but I just pulled out a vent plug-I didnt want to even get started with that darn controller agin.