Burnham 8HE Series Installation, Operating And Service Instructions page 38

8
Service
(continued)
Table 8-5: Green LED Flame Codes
Green LED
Flash Code*
OFF No "Call for Heat"
Flash Fast Power up - internal check
Heartbeat Normal startup - ignition
sequence started
(including prepurge)
4 Seconds Device in run mode.
ON then "x" "x" = flame current to the
flashes nearest μA
2 5 minute Retry Delay
- Pilot flame not detected
during trial for ignition
3 Recycle
- Flame failed during run
4 Flame sensed out of
sequence
6 Control Internal Error
7 Flame rod shorted to
ground
8 Low secondary voltage
supply- (below 15.5 VAC)
*Flash Code Descriptions:
- Flash Fast: rapid blinking
- Heartbeat: Constant ½ second bright, ½ second dim cycles.
- 4 second solid on pulse followed by "x" 1 second flashes indicates flame current to the nearest μA. This is
only available in run mode.
- A single flash code number signifies that the LED flashes X times at 2Hz, remains off for two seconds, and
then repeats the sequence.
38
Indicates
Initiate new trial for ignition after
retry delay completed.
Initiate new trial for ignition. Flash
code will remain through ignition
trial until flame is proved.
If situation self corrects within 10
seconds, control returns to
normal sequence. If flame out of
sequence remains longer than
10 seconds, control will resume
normal operation 1 hour after
error is corrected.
Control remains in wait mode.
When fault corrects, control
resumes normal operation.
Control remains in wait mode.
When fault corrects, control
resumes normal operation.
Control remains in wait mode.
When fault corrects, control
resumes normal operation.
8HE Installation, Operating & Service Instructions
Next System Action
N/A
N/A
N/A
N/A
Recommended Service Action
None
None
None
None
If system fails to light on next
trial for ignition check gas
supply, pilot burner, spark and
flame sense wiring, flame rod
contamination or out of position,
burner ground connection.
If system fails to light on next trial
for ignition, check gas supply,
pilot burner, flame sense wiring,
contamination of flame rod,
burner ground connection.
Check for pilot flame. Replace
gas valve if pilot flame present.
If no pilot flame, cycle "Call for
Heat." If error repeats, replace
control.
Cycle "Call for Heat". If error
repeats, replace control.
Check flame sense lead wire for
damage or shorting. Check that
flame rod is in proper position.
Check flame rod ceramic for
cracks, damage or tracking.
Check transformer and AC
line for proper input voltage to
control. Check with full system
load on the transformer.
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