We purchased a Harman p35i last December and burned most of last year with no problems. At the end of last year we noticed that the burn pot seemed to overfill with pellets before igniting and then the flame was not as high. This year the problem got worse and the pot would overfeed, it would try to ignite and unburned pellets (or partially burned pellets) would drop into the ash tray. One of the problems is that it does not do this consistently. Sometimes the fire will start and play catch up before any unburned pellets fall into the ash tray. We have had three service calls to the house for the problem for a total of 8 hours of techs looking at the problem. So far they have replaced the combustion blower, the room temperature sensor, the burn plate gaskets and the esp. The stove is presently working but upon ignition we are still having the same problem (just not quite as bad) and the flame does not seem to be as high as usual. There seems to be more ash as well but I'm not 100% sure about that. We were told that it was a cleaning issue at first, but the tech found the unit to be clean; Harman says its an airflow problem but they can't seem to find anything wrong. Its very frustrating to have invested over $3000 in a stove and within a year the stove is not working properly and they can't seem to find out what the problem with it is. Has anyone else had this issue with the Harman p35i? Does anyone have any suggestions?