55
COMMISSIONING AND MAINTENANCE
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).
Description of lockout
Lockout time
Led colour
Probable cause
Presence of extraneous light during standby
After 25 seconds
RED flashing
presence of a false flame
after heat request.
Pre-heating not finished
After 600 seconds
RED flashing
light oil heater resistance
fault
starter switch or thermo-
stat fault
Detection of extraneous light during
pre-purging or pre-heating
After 25 seconds
RED flashing
presence of false flame
signal during pre-purging
or preheating
Detection of extraneous light during
post-purging
After 25 seconds
RED flashing
presence of false flame
signal during post-purg-
ing
Flame not detected by end of safety time
5 seconds after the acti-
vation of the fuel oil valve
RED
Steady ON
flame detector faulty or
dirty
light oil valve faulty or
dirty
faulty ignition transform-
er
badly regulated burner
fuel oil not present
Flame failure during functioning
After 3 ignition attempts
RED
burner not calibrated
correctly
light oil valve faulty or
dirty
flame detector faulty or
dirty
Fan motor fault
Immediate (during
pre-purging)
RED, ORANGE
flashing
faulty fan motor
fan motor not connected
Fault with the light oil valve control circuit
Immediate (during
pre-purging)
RED, GREEN
flashing
light oil valve faulty
light oil valve control
circuit faulty
EEPROM fault
Immediate (during
pre-purging)
ORANGE, GREEN
alternate flashing
faulty internal memory
9
To reset the control box after visual diagnostics have been displayed, you must press the reset button.
9
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 Technical Assistance Service.
9
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.
