Jobiewan gave good advice. When starting, my PG1000 auger will feed pellets a number of times to the fire pot, then stop feeding for a a couple of minutes while the pellets start to burn. Then the cycles begin again and won't stop. Look in your fire pot while this happens and you should see a red hot ignitor during the non-feeding minutes. This will assure you that you are still in business.
I assume you are closing your hood. What temp does your PG tell you? To obtain the temperature you desire at the grill, you may have to set the temp higher on the PG to get to the digital thermo temp. Do you have any difficulty getting to 500-600 degrees? Set you LLT to 30 and HHT to 100 and it should be easy. If not, give a call to Cookshack. Good luck!