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43165-1-1221
Page 29
Figures 26 and 28
show a correct pilot flame pattern. The correct
flame will be blue and will extend beyond the thermocouple. The
flame will surround the thermocouple just below the tip. A slight
yellow flame may occur where the pilot flame and main burner flame
meet.
Figures 27 and 29
show 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.
MILLIVOLT PILOT
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
Correct Pilot Flame Pattern
Figure 26
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
Incorrect Pilot Flame Pattern
Figure 27
If pilot flame pattern is incorrect as shown in
Figure 27,
see
Troubleshooting.
MILLIVOLT PILOT FLAME CHARACTERISTICS
THERMOCOUPLE
(PROPANE)
THERMOCOUPLE
(NATURAL)
PILOT
THERMOPILE
THERMOCOUPLE
(NATURAL)
PILOT
THERMOPILE
THERMOCOUPLE
(PROPANE)