I have an enviro meridian pellet stove. Last year, the stainless steel pipe that goes up the chimney was glowing red. Shut down the stove, had fire department check the chimney. Next day we had someone In to thoroughly clean the pipe, and the stove was cleaned as well. Turned it back on and fans work, pellets drop…fire lights…but right before it should start to blow it shuts off. We have replaced the High limit temperature sensor to no avail. This little venture cost $100 after having someone in to look at it (for $80) suggested that part. At this point we are throwing good money after bad and are hesitant to buy more parts Unnecessarily. Any suggestions?