Hi all! I'm a long time reader of this forum and have learned so many bits of great info in regards to my stove and pellet stoves in general, so I figured it was high time I become a member. I'm a retired school teacher (32 years with 5th and 6th graders) living here in NW Pennsylvania, about 5 miles from the lake effect snow machine known as Lake Erie! My question concerns my Harman XXV, which I had installed in December of 2011. It's been a great stove and am very satisfied with it. However, I've noticed over the past 3 weeks or so, I'm getting a very audible "clicking" sound directly after the pellets drop. It's not random, it happens every time. It's not affecting how the stove runs at all....still burning great.....just that clicking noise. I called my dealer and he mentioned the slide plate having something under it and just needing to work that obstruction out on its own, and that no damage was being done. Well, as I said, it's been about 3 weeks and it's still consistently making that noise. I clean the stove about every 10-12 days....scrape the burn pot, igniter area, heat exchangers, fines box, and this past Wednesday emptied the hopper and vacuumed it out, including the area around the slide plate. This helped for a few hours, but the clicking sound started right back up again. So, I decided to ask the experts on this forum and gather some ideas. Thanks in advance!