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7.11 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.
Description
Presence
of
extraneous
light during standby
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 of 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 22.
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
WARNING
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
DANGER
manual and in compliance with the standards and
regulations of current laws.
Start-up, calibration and operation of the burner
Lockout time
After 25 seconds
After 25 seconds
After 25 seconds
After 5 seconds
from oil-valve starts
After 3 recycles
Immediate
Immediate
Immediate
Led colour
– presence of a false flame signal after heat demand
– presence of false flame signal during pre-purging
– presence of false flame signal during post-purging
RED
– flame sensor 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 sensor defective or dirty
– faulty fan motor
– fan motor not connected
– faulty oil valve
– Internal control circuit of the oil valve faulty
– faulty internal memory
27
GB
Probable cause
Tab. G
20035274
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