If it's set at the correct place and it's running a little low can you simply unplug it and plug it back in to reset?
The manual that came with it explains how to reset the switches to change temp. If you don't have it, Google "Hovabator 1588 instructions" and you can get it online. I printed it out and keep it with the incubator now. ETA: Here's the link for the pdf file:http: //www.randallburkey.com/images/1588_Instruction_Manual_2.pdf
