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7.13 Lockout types
Whenever a lockout occurs, the control box shows the reasons
for the fault (and the reasons can be identified by the reset push-
button colour). The sequence of pulses issued by the control box
Lock-out description
Presence
of
extraneous
light during standby
Pre-heating not terminated
Presence of extraneous light
detected during pre-purging
Extraneous light detected
during post-purging
The flame is not detected
after the safety time
Flame failure during opera-
tion
Fan motor error
Malfunction in the internal
control circuit that drives the
oil valve
Eeprom error
The frequency of the flash of reset push-button for the status in-
dication, See "Fault diagnostics - lockouts" on page 23.
To reset the control box, press the reset push-but-
ton.
WARNING
In the event the burner stops, in order to prevent
any damage to the installation, do not unblock the
burner more than twice in a row. If the burner locks
WARNING
out for a third time, contact the customer service.
In the event there are further lockouts or faults
with the burner, the maintenance interventions
must only be carried out by qualified, authorised
DANGER
personnel, in accordance with the contents of this
manual and in compliance with the standards and
regulations of current laws.
20115639
Start-up, calibration and operation of the burner
Lock-out time
Led colour
After 25 seconds
After 600 seconds
0.5 sec. ON
2.5 sec. OFF
After 25 seconds
After 25 seconds
After 5 seconds
from oil-valve starts
After 3 recycles
Immediate
Immediate
Immediate
of the LED in the reset push-button identifies the possible types
of fault, which are listed in the table below
– presence of a false flame signal before the heat re-
quest
– the short-circuit socket is not connected
– presence of false flame signal during pre-purging
– presence of false flame signal during post-purging (or
pre-heating if the short-circuit socket is not connected
RED
– flame detector defective or dirty
Steady ON
– oil valve defective or dirty
– faulty ignition transformer
– badly regulated burner
– oil fuel not present
– badly adjusted burner
– oil valve defective or dirty
– flame detector defective or dirty
– faulty fan motor
– fan motor not connected
– faulty oil valve
– internal control circuit that drives the oil valve faulty
– faulty internal memory
28
GB
Probable cause
Tab. H
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