There is smoke in the wood pellet hopper, and my grill is in the middle of a cook

Open the hopper and grill lids and remove your food if desired. Turn the controller dial to the Smoke setting. If the smoke has stopped after 10 minutes, turn the grill back to the target temperature and resume cooking. If not, remove all pellets and run the controller on High until all pellets have cleared the auger tube. Return the unit to the Shut Down Cycle, then do a thorough cleaning of all pellets and ash. Complete the initial startup procedure to prime the auger tube with pellets for normal operation.