My Lyden pellet stove (bought new from authorized dealer circa. September 2010, so under warranty) failed for the first time last Tuesday. Essentially, the convection blower won't engage, so the start-up sequence shuts down after about 30 minutes. The dealer had me swap out the control board, but the new one didn't make any difference. My theory is that the convection fan is not burned out, because if I switch to "auto" on the control board when I'm initially in the start-up phase in manual mode (I tried this several times after the stove was quite hot, but the convection fan still hadn't started) - and I use manual mode exclusively - the convection blower would engage for about 2 seconds, and then shut off. So it seems like there may be an issue with some kind of thermastatic controller. Ideas? I've seen the term "snap disk" used in troubleshooting similar convection blower issues on this forum, but I'm not sure what that term means. I am meticulous about cleaning every element of this stove, and the flue as well, so I don't think it's anything that easy. I've got the stove plugged into a high quality UPS, so I've taken reasonable steps to keep the power equally clean. Although the dealer has promised a service call this coming Tuesday (maybe I'll sound ungrateful, but this is my sole source of heat, except for some resistance electric, and I'm feeling left out in the cold - literally - but it's fortunately not so cold), I was hoping for some other insights. Thanks!