8
Problem:
Display:
No Flame
No mA output signal
ON signal
Yellow LED OFF
after the
Green LED OFF
burner
No data communica-
was
tion
started
Flame signal (soft-
ware) low
Yellow LED OFF
Flame signal (soft-
ware) above the
starting thresholds
Yellow LED OFF
Red LED ON (soft-
ware)
Flame signal (soft-
ware) above the
starting thresholds
Yellow LED ON
Green LED ON
Burner
Flame signal (soft-
fails
ware) drops. Below
the shut-off thresh-
old, the flame relay
switched off.
Flame signal above
shut-off threshold
Yellow LED OFF
Failures
Cause:
Compact flame
controller not
functioning
Flame signal too
low or below the
starting threshold
Device or self-
test fault
Relay contact or
wiring problem
No flame, weak
flame signal
Device or self-
test fault
Remedy:
Check voltage supply
Replace compact flame control-
ler
Check electrical connection
Inspect compact flame controller
Check flame, alignment, sighting
tube and lens
Check / set sensitivity and
switching thresholds
Check fault memory
Possibly remove plug for 5 sec-
onds then start the burner again
Replace compact flame control-
ler
Check fuse F3 in relay output
circuit
Check electrical connection
Check flame
Inspect compact flame controller
Check alignment and SKL-lens
Check FOC
Check sensitivity setting
Check switching thresholds
Replace compact flame control-
ler
Check electrical connection
Check fault memory
Possibly remove plug for 5 sec-
onds then start the burner again
Replace compact flame control-
ler
Failures
8-1
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