Pellet grill flameout

A flameout is what happens when the fire inside a pellet grill's firepot goes out mid-cook, even though the auger, fan and controller are all still running. Instead of a steady, held temperature, the readout drops and keeps dropping because there is no longer any active fire to reheat the chamber, only warm air left over from before the flame died.

The most common causes are an empty pellet hopper, pellets that have absorbed moisture and stopped feeding or igniting properly, an auger jam from a broken pellet or foreign object, or ash buildup in the firepot blocking airflow to the fire. Wind gusts across a poorly sealed lid can also snuff out a low, small flame during startup or at the very low end of a grill's temperature range.

Catching a flameout early usually depends on watching for a temperature that keeps sliding instead of holding steady, since letting the drop continue unnoticed can leave meat sitting at unsafe temperatures for a long stretch. Keeping the hopper topped off before long cooks, using dry pellets, and cleaning ash out of the firepot regularly are the main ways to prevent a flameout rather than having to restart mid-cook.