I haven't had any temp problems. I moved the height setting up once before and everything was great but when I went to raise it to the highest heat setting the black plate fell off. I don't think I broke anything as I followed the instructions and didn't apply force etc. It just came off and looks like it was only glued on or something since there doesn't seem to be any actual fasteners for it. Putting it back on the stand keeps it in place so I am not to worried, however for a product that I have only used for 3 weeks and it about 4 times more expensive than buying the alternative...not to happy...I love it other than that and I will be looking to get a warranty claim if possible for when we start the next batch of chicks. It still isn't a big deal, but I am getting really tired of nearly new items failing all around us all the time. I guess there is something to be said about made in the USA, even if it costs more.