Inspecting Burner

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

PILOT FLAME PATTERN

Figure 29 shows a correct pilot flame pattern. Figure 30 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. 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 30

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19)

see Troubleshooting, page 22

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 29 - Correct Pilot Flame Pattern

(Propane/LP Shown)

Pilot Burner

Thermocouple

Figure 31 - Correct Burner Flame Pattern

Figure 32 - Incorrect Burner Flame

Pattern

Cleaning and

Maintenance

WARNING: Turn off fireplace and let cool before cleaning.

CAUTION: You must keep control areas, burner and cir- culating air passageways of fireplace clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person. Fireplace may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

Figure 30 - Incorrect Pilot Flame Pattern

(Propane/LP Shown)

BURNER FLAME PATTERN

Figure 31 shows a correct burner flame pattern. Figure 32 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tipping. The flame should not be dark or have an orange/reddish tinge.

Note: When using the fireplace the first time, the flame will be orange for approximately one hour until the log cures.

If burner flame pattern is incorrect, as shown in Figure 32

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19)

see Troubleshooting, page 22

WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

Burner Injector Holder and

Pilot Air Inlet Hole

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.

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Desa LGCFTP, LGCFTN installation manual Inspecting Burner, Cleaning Maintenance, Pilot Flame Pattern, Burner Flame Pattern

LGCFTN, LGCFTP specifications

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