MAXFire
®
Series 100 Gas Igniters Manual
372001-04 Rev. C
8
Section 6 Troubleshooting
If the igniter
fails to ignite
, confirm that the following conditions exist:
All manual valves in the gas and the air lines for this igniter are in their proper position.
All automated valves in line with this igniter are operating correctly.
The specified gas pressure is confirmed at the inlet to the igniter gas tube.
The specified cooling/combustion air flow is confirmed at the inlet to this igniter.
The ignition source (HESI or HTSI) is installed in the correct position (Figure 3) and is producing
sparks. If the HESI or HTSI fails to generate sparks, refer to the HESI or HTSI Service Manual
for additional guidance on fault isolation.
The two fuel orifices in the orifice tube assembly are free of obstructions.
If the igniter
establishes a flame but fails to remain ignited
, confirm that the following conditions exist:
The fuel supply pressure at the inlet to the igniter remains at the specified level during/following
igniter light off.
The flow of cooling/combustion air is maintained at the specified level during/following igniter
light off.
Airflow in the burner wind box is not extinguishing the flame or moving the flame out of the
flame detector sighting region.
The flame detection device is operating correctly.
