If you start your direct fired heater and the fan starts, but the flame doesn’t start you may have a bad fuel connection or low fuel levels. Check your spark plug as well. If the spark plug is functioning it may be a bad fuel connection.
The following videos are short tutorials on how to do some basic troubleshooting with your direct fired heater. If the problem after going through these videos, the problem persists, please contact one of our On Site Companies customer service representatives.