Harman Advance Pellet Stove
Had Harman Advance Pellet installed in October 2005.
Had the unit cleaned last spring, after smoke came thru hopper.
Turned the unit on the night before last for the first time since the cleaning. No visible smoke, but burnt wood smell coming thru blower vents.
S/w tech who serviced the unit and I vacuumed all openings
yesterday. (Tech said that the only other time he encountered this, kids had shoved crayons into the unit's holes...we don't have kids or grandkids, just my husband and myself...) Just turned the unit on again. The burnt wood smell is blowing thru the blower again!
The Harman trouble-shooting section recommends caulking the seams of the exhaust pipe, but the caulking that's already there appears to be intact.
Anyone know what's causing this? Any possible solutions?