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Start-up, calibration and operation of the burner
6.13 Lockout types
Whenever a lockout occurs, the control box shows the reasons
for the fault (and the reasons can be identified by the reset button
colour). The sequence of pulses issued by the control box of the
LED in the reset button identifies the possible types of fault, which
are listed in the table below
Tab. I
The frequency of the flash of reset push-button for the status in-
dication see “Fault diagnostics - lockouts” on page 23.
Lockout description Lockout time Led colour Probable cause
Presence of extraneous
light during standby
After 25 seconds
– presence of a false flame signal before the heat re-
quest
Pre-heating not terminated After 600 seconds
0,5 sec ON
2,5 sec OFF
– fault in the resistor of the oil pre-heater
– fault in the switch or start-up thermostat
– the short-circuit socket is not connected (for burners
without heater)
Detection of extraneous
light during the pre-purging
or pre-heating
After 25 seconds – presence of flame simulation during the pre-purging or
pre-heating
Detection of extraneous
light during the post-purging
After 25 seconds – presence of flame simulation during the post-purging
The flame is not detected
after the safety time
After 5 seconds
from oil-valve starts
RED
Steady ON
– flame sensor defective or dirty
– oil valve defective or dirty
– faulty ignition transformer
– badly regulated burner
– oil fuel not present
Flame failure during opera-
tion
After 3 recycles – badly adjusted burner
– oil valve defective or dirty
– flame sensor defective or dirty
Fan motor error Immediate – faulty fan motor
– fan motor not connected
Malfunction in the internal
control circuit of the oil valve
Immediate – faulty oil valve
– internal control circuit of the oil valve faulty
Eeprom error Immediate – faulty internal memory
To reset the control box, press the reset button.
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 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
personnel, in accordance with the contents of this
manual and in compliance with the standards and
regulations of current laws.
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