Inspecting Burners. Duluth Forge 170154, 170032, 170150

INSPECTING BURNERS

IMPORTANT: Owner’s should check pilot flame pattern and burner flame pattern often.

Incorrect flame patterns indicate the need for cleaning (see Care and Maintenance, page 24) or service.

WARNING: Only a qualified service person should service and repair heater. This includes maintenance requiring replacement or alteration of components.

PILOT FLAME PATTERN

Figure 28 shows a correct pilot flame pattern.

Figure 29 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool, which shuts the heater off.

If pilot flame pattern is incorrect, as shown in Figure 29

• turn heater off (see To Turn Off Gas to Appliance , page 20)

• see Troubleshooting pages 28 through 31.

WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If the burner flame pattern shows yellow tipping, follow instructions at bottom of this page.

Notice: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.

Natural Gas

Shown

NG

3-3.5" WC

LP

8-11" WC

Natural Gas

Shown

NG

3-3.5" WC

LP

8-11" WC

Approx. 3"-6" Above Top of Logs

Figure 28 - Correct Pilot Flame Pattern

(Natural Gas shown)

Figure 29 - Incorrect Pilot Flame Pattern

(Natural Gas shown)

BURNER FLAME PATTERN

Figure 30 shows a correct burner flame pattern. Figure 31 shows an incorrect burner flame pattern. If burner flame pattern is incorrect then:

• turn heater off (see To Turn Off Gas to Appliance , page 20).

• see Troubleshooting pages 28 through 31.

More Than 8" Above Top of Logs

Approx. 3"-6" Above Top of Logs

Figure 30 - Correct Burner Flame Pattern with Control Knob Set to HI (5)

Figure 31 - Incorrect Burner Flame

Pattern with Control Knob Set to HI (5)

Air is drawn into the burner through the holes in the fitting at the entrance to the burner. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean as necessary. Blocked air holes will create soot.

200253-01E www.factorybuysdirect.com

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