HI, My Hudson River pellet insert will trip the snap disk every 2 months or so. It is usually on low heat so I do not suspect any overheat conditions. I know these are supposed to open up when an overheat temp is found. It is a real pain to reset as I have to move the stove out and the location of the snap disk is in a bad location. I would like to replace with a new snap disk. Are some better than others? Any suggestions or ideas would be appreciated. If a new disk is in order where do I buy one it is out of warranty.