Hello All, Had a brand new Mt. Vernon AE insert installed last night. everything fired up fine, and started working great. the tech's left, and I changed the recommended settings on the stove (Altitude, fuel type) and then the unit went into shutdown/autoclean mode. It restarted and ran through the normal cycle, Startup /SS-Low/SS Med, and after SS med, it went right back into Shutdown/ Autoclean mode and it will not break this cycle. It seems like it is not feeding enough pellets to go into high / heat mode? I called the distributor, they called Quad, and said that it could be a bad thermocouple. This stove is literally 2 hours of runtime old...is this possible? has anyone had to deal with this, or have any suggestions?