20035283
28
GB
Start-up, calibration and operation of the burner
8.11
Lock-out types
The control box display causes of malfunctioning any time that
lock-out occure, identified by the reset push-button color. The se-
quence of led pulses in the reset push-button issued by the con-
trol box identifies the possible types of malfunction, which are
listed in the table below.
Tab. G
The frequency of the flash of reset push-button for the status in-
dication, see “Fault diagnostics - Lockouts” on page 23.
Description
Lockout time
Led colour
Probable cause
Presence of extraneous
light during standby
After 25 seconds
– presence of a false flame signal after heat demand
Presence of extraneous light
detected during pre-purging
After 25 seconds
– presence of false flame signal during pre-purging
Extraneous light detected
during post-purging
After 25 seconds
– presence of false flame signal during post-purging
The flame is not detected
after the safety time
After 5 seconds
from oil-valve starts
RED
Steady ON
– flame detector 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 detector 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
WARNING
To reset the control box after visual diagnostics
have been displayed, you must press the reset
push-button.
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 out for a third time, contact the customer
service.
DANGER
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.