Last week I had snap disc #3 go bad. Purchased a new one, thought things where dandy until... I have the thermostat set at 76 and with the pellets i run it nevers reaches temp. premium grade pellets... It never reaches that temp so the stove runs continuously maintaining 72. Since it has gotten colder in the last week I tried to up the stove from #3 to the Quad setting #4 to get it a little warmer. Whats happening is that the stove is shutting down before it ever reaches 76 degrees on quad. The red call light is on but the stove stops feeding the pellets. If I wait a few minutes and then hit the reset button it will start dropping pellets again and continue on. I can run the stove on 3 setting almost all the time with the premium grade pellet. As soon as I run the stove on 4 it shuts down and If I add my good pellets on the 3 setting it will shut down. Seems its getting to hot... I assume I have another bad snap disc or a faulty #3 snap that I just purchased. I ordered Snap #1 and #2 in hopes of "curing" the problem. Any ideas guys?