INSPECTING BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

Pilot Burner

Thermocouple

GOOD PILOT/LP

GRH/OV 007

Figure 18 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

 

BAD PILOT/LP

GRH/OV 008

Figure 19 - Incorrect Pilot Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 19

turn heater off (see To Turn Off Gas to Appliance, above)

see Troubleshooting, pages 21 through 24

Continued

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Image 19
Desa CGP10TL installation manual Inspecting Burner, Pilot Flame Pattern