Burner Orifice Obstructed - Travis Industries Spirit 300 GS Service Manual

Burner Orifice Obstructed

The orifice(s) work in conjunction with the gas control valve to provide the correct amount of gas to the
burner pan. Any obstruction (debris from gas line installation) caught in an orifice will lead to improper
performance. Follow the instructions below to check for obstructions.
1 If the flame height is less than 6" tall in the rear, or 2" in front, the orifice(s) may need to be
checked for obstructions. First check the input pressure to see if that is correct, then
adjust the air shutter. If the flames remain too short, remove the orifice(s) and check for
debris inside.
2 While the orifices are removed, use a flashlight to inspect the inside of the mixing tubes
for any type of obstructions that may interfere with gas/air flow (check for lint, cobwebs,
dirt, etc.). If any debris is lodged in the orifice remove the debris by forcing air through it.
Do not poke or ream out the orifice to clean it.
Remedy
The orifices or inside of mixing tubes will need to be cleaned (force air through it) or replaced.
Travis Industries
Troubleshooting Steps
Check for clogging by
removing the orifice
and looking inside.
Always use thread
sealant when replacing
the orifice(s).
While the orifice(s) are removed, check the
inside of the mixing tubes for obstructions.
Gas T-Shoot Guide
Orifice (removed
from back side of
manifold)
2 - 11
19203