My #2 snap disc went bad on a Santa Fe pellet stove. My owners manual lists the part as 230-1290 which is a 250 degree snap disc. The one I pulled out was a 175 degree snap disc part number 230-1960 so I replaced it with a new 175 degree disc. Shopping online at stove-parts-unlimited.com and other sites indicate the 175 degree disc is the correct part. The new one is now tripping frequently. I have had the stove since new and this part had not been changed in the past. 2 questions - does anyone know if this should be the 250 degree snap disc even though it worked fine for years with the other one; and if the 175 degree disc is correct, what would now be causing the new disc to trip assuming it is working correctly? I have cleaned the stove and it seems to be venting properly.