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19
103575
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.
GRH/OV 007GOOD PILOT/LP
Thermocouple
Pilot Burner
Figure 18 - Correct 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
Thermocouple
Pilot Burner
Figure 19 - Incorrect Pilot Flame Pattern
GRH/OV 008BAD PILOT/LP