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39235-1-0219
Page 26
Figures 25
shows 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.
Figure
26
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.
MILLIVOLT PILOT
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
Correct Pilot Flame Pattern
Figure 25
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
Incorrect Pilot Flame Pattern
Figure 26
If pilot flame pattern is incorrect, as shown in
Figure 26
• See Troubleshooting, page 27 .
PILOT FLAME CHARACTERISTICS
THERMOCOUPLE
(PROPANE)
THERMOCOUPLE
(NATURAL)
PILOT
THERMOPILE
PILOT
THERMOPILE
THERMOCOUPLE
(PROPANE)