Are you using Weber Pellets? If not…
We recommend Weber SmokeFire hardwood pellets to deliver the best results. It can impact the pellet flow when you use other brands, this is due to the pellets being different sizes and of a different quality which can create more dust, restricting the pellet flow in the auger. Can we send you a complimentary bag of Weber All-Natural hardwood pellets?

If using Weber Pellets:
What you may be experiencing is a blockage in the chute due to accumulated pellet dust which then can create an air pocket that restricts the flow of pellets to the auger feed. It is important to regularly clean the hopper and pellet chute to keep them free of dust build-up to avoid clogging.