The metering slide plate on the Harmon Accentra has a step on one side . The very dusty Greenways locked up the slide plate and caused the auger to stop feeding pellets. When I pulled the plate out to clean it, I didn't take notice wether the notch went on top or bottom. I re installed it with it up. Is this correct? Im wondering If I installed it wrong after my seasons cleaning and thats what caused it to lock up. This stove has burned everything up until now. First time I noticed smoke in the hopper.