Customer complaint: Pilot light keeps going out and a banging noise from the fireplace. Tested fireplace and thermopile—found low millivolt reading. Advised customer that the thermopile needed replacement and proceeded with the replacement. After replacement, the fireplace was still shutting off after about one minute. Inspected flames and found the burner tray was shooting flames from the bottom. Removed the burner tray, cleaned out all carbon buildup, and reinstalled components. Tested the fireplace again—now operating normally with no flames coming from the bottom of the burner tray. Ran the fireplace for 15 minutes continuously with no issues. Possible cause of earlier shutdown: A spill switch or over-temperature sensor detecting unsafe conditions due to flames burning underneath the burner tray. Fireplace is now operating normally and within gas codes and manufacturer recommendations. Advised customer to have Evans perform a deep cleaning on the fireplace once a year due to carbon