Inspect orifice for soot, dirt and corrosion. Verify orifice size is correct. See Service Parts List for proper orifice sizing.

Verify manifold and inlet pressures. Adjust regulator as required.

Inspect pilot flame pattern and strength. See Figure 3.1 for proper pilot flame pattern. Clean or replace orifice spud as necessary.

• Inspect IPI flame-sensing rod for soot, corrosion and deterioration. Polish with fine steel wool or replace as required.

Verify that there is not a short in flame sense circuit by checking continuity between pilot hood and flame- sensing rod. Replace pilot as necessary.

Figure 3.1 IPI Pilot Flame Patterns

Light Bulb Maintenance

Frequency: As needed

By: Qualified Service Technician

Tools needed: Protective gloves, replacement light bulbs.

• See Section 14.F.

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Heat & Glo LifeStyle ESC-42ST owner manual Light Bulb Maintenance, Frequency As needed