Burnham 805H Installation, Operating And Service Instructions page 59

Honeywell EI Ignition Module Yellow LED Flame Codes
Yellow LED
Flash Code
a
Heartbeat
System will operate reliably but flame signal is less than
2 desired.
Note: This indication may flash temporarily during or
shortly after lightoff on some applications.
System may not operate reliably over time. Service call
1 recommended.
Note: This indication may flash temporarily during or
shortly after lightoff on some applications.
OFF
Flash Code Descriptions
a
- Heartbeat: Constant ½ second bright, ½ second dim cycles.
- The flash code number signifies that the LED flashes X times at 2Hz, remains off for two seconds, and then repeats
sequence.
Indicates
Normal Flame Signal
Weak Flame Signal -
Marginal Flame Signal (less than 1.1 µA) -
No Flame or Flame Signal -
below minimum threshold for system operation.
Recommended Service Action
N/A
Perform routine maintenance to
assure optimum flame signal.
Check gas supply, pilot burner, flame
sense wiring, contamination of flame rod,
burner ground connection.
N/A
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