20
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.
Thermocouple | Pilot Burner |
|
Figure 18 - Correct Pilot Flame Pattern
Thermocouple | Pilot Burner |
|
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, page 19).
•see Troubleshooting, pages 22 through 25.
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