Vanguard Heating VMH10TNA Inspecting Burner, Pilot Flame Pattern, Burner Flame Pattern

Models: VMH10TNA

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OWNER’S MANUAL

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern 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 touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the fireplace will shut down.

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

turn fireplace off (seeTo Turn Off Gas to Appliance, page 18)

seeTroubleshooting, pages 20 through 22

Thermocouple

Pilot Burner

BURNER FLAME PATTERN

Figure 32 shows a correct burner flame pattern. Figure 33 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows the flame consistently higher than one inch above the log.

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

turn fireplace off (seeTo Turn Off Gas to Appliance, page 18)

seeTroubleshooting, pages 20 through 22

Top of Flame About

One Inch Below Logs

Figure 32 - Correct Burner Flame Pattern

Top of Flame Consistently About One Inch Higher Than Logs

Figure 30 - Correct Pilot Flame Pattern

Thermocouple

Figure 33 - Incorrect Burner Flame Pattern

Pilot Burner

Figure 31 - Incorrect Pilot Flame Pattern

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Vanguard Heating VMH10TNA installation manual Inspecting Burner, Pilot Flame Pattern, Burner Flame Pattern