Awesome a new noise! Any thoughts on where a pinging / clicking noise would come from? Only does it when the stove is warming up from being cold. The sound starts after the combustion and convection fans kick on (but not immediately and stops after a few minutes after the stove warms up) so I don't think it's related to any fan, auger, or versa-grate motor. I removed the top and sides of the stove but it seems to be coming from an area towards the top at I don't think is accessible without some major disassembly. Stove is about 7 years old. Runs great, leaf blower cleaning, etc.