Install Instructions

29
CHART 3
LED STATUS AND TROUBLE SHOOTING
The following procedures are provided as a general guide. Any module should be replaced if it does not perform properly
or checkout on troubleshooting. In addition, replace any module if it is wet or looks like it has ever been wet.
The control has two LEDs; one for ame sensing and one for
system status:
FIGURE 19. LOCATION OF LEDS.
• Flame LED (Yellow)
– Indicates ame presence and strength. See Table 6.
• Status LED (Green)
– Indicates system operation status and error conditions. See
Table 7 and Table 8 for status specic to each model.
•
a
Flash Code Descriptions:
– Heartbeat: Constant ½ second bright ½ second dim cycles.
– The ash code number signies that the LED ashes X times at
2Hz, remains off for two seconds, and then repeats the sequence.
Yellow LED
Flash
Code
a
Indicates
Recommended
Service Action
Heartbeat Normal Flame Signal not applicable
2 Weak Flame Signal -
System will operate
reliably but ame
signal is less than
desired.
NOTE: This indication
may ash temporarily
during or shortly
after lightoff on some
applications.
Perform routine
maintenance to assure
optimum ame signal.
1 Marginal Flame
Signal
(less than 1.1µA)
- System may not
operate reliably over
time. Service call
recommended.
NOTE: This indication
may ash temporarily
during or shortly
after lightoff on some
applications.
Check gas supply, pilot
burner, flame sense
wiring, contamination
of flame rod, burner
ground connection.
OFF No Flame or Flame
Signal below minimum
threshold for system
operation.
not applicable
YELLOW LED FLAME CODES