CLEANING THE BURNERS
The most common burner maIfunction is clogging due to excess dirt and debris, which can enter the burner through the burner ports. This excess dirt can block one or several of the ports so that the burner will have trouble lighting, or will not light at all. In this case, the burner ports must be cleared using a pin (see Figures
Port
Burner
Climber Port
Figure
Figure
The primary air shutter is an additional inlet where dust can enter a main burner. Whether or not the burner is operating, dust can still be drawn into the burner through the air shutter. The debris can clog the venturi, orifice, or burner ports. Again, this type of clogging can reduce, if not stop, the flow of gas through the burner. In addition, the primary air shutter itself can become blocked, restricting the flow of primary air into the burner.
In any event, cleaning the burner normally eliminates most of the dirt buildup. Also, it is a good practice to keep the area immediately surrounding the main burner as clean as possible to reduce the possibility of clogging any part of the main burner.
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