E-1 error frequently on Piazzetti Monia. Can filling the auger resolve this? I have throughly cleaned all parts of the stove. Pellets are being fed to the grate. The stove goes through startup phases 1 and 2, fan comes on, and it burns fine, sometimes for a full day, sometimes for only ten minutes or so. Then E-1 comes on. Can filling the auger resolve this?