Before we get into diagnosing your issue, let's start off by saying that the term, "overfeeding," is a misnomer--the auger cannot "overfeed" pellets because it actually supplies pellets to the firepot on a timed schedule set by the grill controller. So if there is no such thing as overfeeding, then why do I have a surplus of pellets in my firepot?
The reason that you have a lot of pellets in your firepot is because your flame went out, meaning there was no heat source to consume the fuel (pellets). The flame can go out for a variety of reasons including improper startup or shutdown, poor pellet quality or mechanical errors. When the flame goes out, the grill will try to reignite and raise the grill's temperature, all while continuing to feed pellets into the firepot. If the grill is unable to re-ignite, it will have an LEr or Low Temp Error, depending on the model. This can--and often will--lead to a buildup of pellets and an overflowing firepot.
If you get an LEr or Low Temp Error, follow the respective steps to remedy the problem, and proceed by cleaning your grill thoroughly.
On a WiFIRE-enabled (D2) grill, it is normal for the auger to continue feeding pellets into the firepot during shutdown. This is an enhanced design feature to help prevent the pellets remaining in the auger from catching fire.
Non-WiFIRE, or AC grills, however, should not feed pellets during shutdown. If you have an AC grill that is feeding pellets during shutdown, there is a problem with your grill that needs to be fixed.
Most often, the problem is with some swapped wires on the grill.
Still Having Issues?
If you have confirmed that the wires are not swapped, and you are still experiencing trouble with the auger feeding, please call Customer Service for further assistance.