Just bought used stove. Installed and have air issues, am gonna clean thoroughly. Saw in the manual the auger on and off times, and mine differ considerably. Auger on around 1.5 sec, auger off 10-12 sec. Doesnt matter which setting you have selected. I found the auger trim screw and tried to adjust, but all it does is increase on time. The stove is basically running out of pellets. Was wondering why times would be off???