Thanks for the reply. The room is cooler than 75 but I've been seeing this issue since around August when the temps in the room would be around 75 a lot of the time. I started to notice an issue around about July when temps were higher than now. Now that you mention the room temp, it has been more of an issue since the temps have been dropping.

How long do heating pads usually last? Is 2 years standard or way short?