Sorry for the late post but I need help my stove has started making a noise to what I can describe as nails on a board squealing I removed the augers to clean them as per tech I talked to earlier noise sent away but it came back half way through a bag of pellets, the noise has got so loud my neighbors can hear it coming from my house what is causing this and how do I fix it before winter its my only source of heat for me and my family. Thanks.