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Flame burns only about 6 seconds and shuts
off.
S Flame rod or flame ground mislocated.
S Defective flame rod wire.
S Defective ignition module.
S Burner rate set too high. Ensure that
manifold pressure is set per rating plate
and that correct orifice size installed (See
table page 21).
S Burner getting too much air. Reduce air
shutter opening (not below 1.0).
Short flame.
S Wrong size orifice. (See table on page
21).
S Low gas pressure.
S Air shutter adjustment. (See table, shutter
setting)
S Main manual valve partially closed.
Long hazy flame.
S Wrong size orifice.
S High gas pressure.
S Dirty blower wheel or intake.
S Air shutter adjustments.
Gas fails to shut off.
S Dirt on valve seat.
S Defective main valve.
SHUTTER SETTINGS
Kettle Size/Gas Type
Natural Propane
20 Gallon (80,000 BTU/HR) 1.5 2.0
30/40 Gallon (100,000 BTU/HR) 1.5 2.0
60 Gallon (120,000 BTU/HR) 2.0 3.0
Shutter setting is on the fan intake. Adjust the shutter per the table above by loosening the
screw on the shutter closest to the stamped numbers and turning the shuttle disc until the screw
points to the correct setting. Tighten screw when adjustment is complete. Figure 1 below shows
a shutter setting of 2.0. Look at the flame through the plastic window in the rear of the burner. It
should be mostly blue with slight bits of orange flame on natural gas. On propane, flame will be
more orange in color. Using a portable gas analyzer, shutter settings can be adjusted to yield
between 5.0-8.0 CO2. Air free CO should read below 100ppm. Once the burner is set up and
operating properly, secure all wires and replace all covers.
NOTE: Loose, broken or grounded wiring may cause many of the symptoms listed. Check all
wiring and make sure it is intact.