INSPECTING BURNERS

Check pilot flame pattern and burner flame pat- terns often.

PILOT FLAME PATTERN

Figure 30 shows a correct pilot flame pattern. Figure 31 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the ther- mocouple. This will cause the thermocouple to cool. When the thermocouple cools, the fireplace will shut down.

If pilot flame pattern is incorrect, as shown in Figure 31

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 18)

see Troubleshooting, page 21

Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.

Pilot Burner

Thermocouple

Figure 30 - Correct Pilot Flame Pattern

(Propane/LP Shown)

Pilot Burner

Thermocouple

FRONT BURNER FLAME PATTERN

Figure 32 shows correct front burner flame pat- tern. Figure 33 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame.

WARNING: If front burner flame pattern shows yellow tip- ping, your fireplace could pro- duce increased levels of carbon monoxide.Followinstructionsat bottom of this page.Yellow flame on rear burner is normal.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by fireplace, causing brief patches of orange flame.

If front burner flame pattern is incorrect, as shown in Figure 33

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 18)

see Troubleshooting, page 21

Figure 32 - Correct Front Burner Flame Pattern

Yellow Tipping At

Top of Blue Flame

Figure 31 - Incorrect Pilot Flame Pattern

(Propane/LP Shown)

Figure 33 - Incorrect Front Burner Flame

Pattern

113135-01C

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Vanguard Heating VSGF-28NTE, VSGF-28PTE Inspecting Burners, Pilot Flame Pattern, Front Burner Flame Pattern