S8600B,C,H,M; S8610B,C,H,M; S8670D,E,J,K INTERMITTENT PILOT GAS IGNITION CONTROL
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Table 6. Continuous Retry Models C, M, E, and K Only—Green LED Status Codes. (Continued)
Recommended Service Action
Recycle
- Flame failed during run
Initiate new trial for ignition. Flash code will remain
through the ignition trial until flame is proved.
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.
Flame sensed out of
sequence
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.
Check for pilot flame. Replace gas valve if pilot
flame present. If no pilot flame, cycle “Call for
Heat.” If error repeats, replace control.
Control remains in wait mode. When the fault
corrects, control resumes normal operation.
Cycle “Call for Heat”. If error repeats, replace
control.
Flame rod shorted to
ground
Control remains in wait mode. When the fault
corrects, control resumes normal operation.
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.
Low secondary voltage
supply
Control remains in wait mode. When the fault
corrects, control resumes normal operation.
Check transformer and AC line for proper input
voltage to the control. Check with full system load
on the transformer.
a
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
A. This is only avail-
able 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.
Table 7. Lockout Models B, H D, and J Only—Green LED Status Codes.
Recommended Service Action
Power up - internal check
Normal startup - ignition
sequence started (including
prepurge)
4 Seconds ON
then “x” flashes
Device in run mode. “x” = flame
current to the nearest
A.
Lockout - Failed trial for ignition
Remain in lockout until “Call for Heat” is cycled.
Check gas supply, pilot burner, spark and
flame sense wiring, flame rod contaminated
or out of position, burner ground connection.
Recycle
- Flame failed during run
Initiate new trial for ignition. Flash code will
remain through the ignition trial until flame is
proved.
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.
Flame sensed out of sequence
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.
Check for pilot flame. Replace gas valve if
pilot flame present. If no pilot flame, cycle
“Call for Heat.” If error repeats, replace
control.
Control remains in wait mode. When the fault
corrects, control resumes normal operation.
Cycle “Call for Heat”. If error repeats,
replace control.