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Heat & Glo • SOHO-N-AUB • 2197-980 Rev. F • 5/12
Burner Ignition and Operation
Frequency: Annually
By: Qualied Service Technician
Tools needed: Protective gloves, vacuum cleaner, whisk
broom, ashlight, voltmeter, indexed drill bit set, and a
manometer.
• Verify burner is properly secured and aligned with pilot
or igniter.
• Clean off burner top, inspect for plugged ports, corrosion
or deterioration. Replace burner if necessary.
• Replace Glowing embers with new dime-size pieces. DO
NOT block ports or obstruct lighting paths. See Figure 3.2.
• Verify batteries have been removed from battery back-up
IPI systems to prevent premature battery failure or
leaking.
• Check for smooth lighting and ignition carryover to all
ports. Verify that there is no ignition delay.
• Inspect for lifting or other ame problems.
• Verify air shutter setting is correct. See Section 9 for
required air shutter setting. Verify air shutter is clear of
dust and debris.
• Inspect orice for soot, dirt and corrosion. Verify orice
size is correct. See Service Parts List for proper orice
sizing.
• Verify manifold and inlet pressures. Adjust regulator as
required.
• Inspect pilot ame pattern and strength. See Figure 3.1
for proper pilot ame pattern. Clean or replace orice
spud as necessary.
• Inspect IPI ame sensing rod for soot, corrosion and
deterioration. Polish with ne steel wool or replace as
required.
• Verify that there is not a short in ame sense circuit
by checking continuity between pilot hood and ame
sensing rod. Replace pilot as necessary.
Figure 3.1 IPI Pilot Flame Patterns
Figure 3.2 Ember Placement
• Place small pieces of ember material on burner top
around burner ports.
Do NOT press embers into burner ports.
Do NOT place embers in the center area shown in Figure
3.2.