Been happily using the Harman PB105 for the last year without any problems. Unfortunately, we developed a strange problem that the dealer or Harman hasn't been very helpful in resolving. The unit loads pellets, ignites, and feeds pellets for a few minutes, but then quickly decides to quit loading pellets and the fire eventually burns out despite not reaching max temp. The unit will not start loading pellets again until I reset it and the process starts all over again. There doesn't seem to be any obvious problems with the burnpot, feeder motor, or blower fan. Any ideas? Thanks!