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5.17.3 Intermittent operation
Sequence for enable/disable
Programming allowed in OPERATION.
Press the button for 20 sec. t < 25 sec.
GREEN led flashing 3 times
Release the button
GREEN led OFF
Press push-button 1 time for disable function (*)
Press the button twice to enable a shutdown every 1 hour
(*)
Press the button 3 times to enable a shutdown every 24
hours (*)
GREEN led ON and OFF at every press and release
After 10 sec., the GREEN LED will blink for the number of
times programmed (0.5 sec. ON; 0.5 sec. OFF)
The modification of the intermittent operation setting parameter
takes effect:
–
after the activation of a switch-off test;
–
after flame disappearance during operation;
–
after disconnecting and reconnecting the electrical supply.
5.18 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).
Description
Presence of extraneous
light during standby
Pre-heating not terminated
(if there is a heater)
Presence of extraneous light
detected during pre-purging
Extraneous light detected
during pre-heating (if there is
a heater)
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
Blinking frequency of the reset push-button for status indication,
see "Faults diagnosis - lockouts" on page 19.
To reset the control box after visual diagnostics
have been displayed, you must press the reset
push-button or the remote reset.
WARNING
Installation
Lockout time
Led colour
After 25 seconds
After 600 seconds
After 25 seconds
After 25 seconds
After 5 seconds
from oil-valve starts
Steady ON
After 3 recycles
Immediate
Immediate
Immediate
5.17.4 Display of the last lockout that occurred
The control box allows the last lockout that occurred and has
been stored to be displayed, by accessing of see "Programming
menu" on page 22.
Access to this page is possible only Operating.
Display sequence of the last lockout that occurred
Keep the button pressed for 25 sec. = t < 30 sec.
The GREEN led blinks 4 times.
Release the button.
Display of the type of lockout stored for 10 sec.
The display time for the type of lockout can be extended by press-
ing the reset push-button during the display of the lockout (the
display of the lockout continues for another 10s).
NOTE:
(*) Always wait 1 sec. with each pressing and release of the
button to ensure the command is logged correctly.
The sequence of pulses issued by the control box 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 after heat demand
– fault in the resistor of the oil pre-heater
– fault in the switch or start-up thermostat
– the short-circuit socket is not connected
– presence of false flame signal during pre-purging
– presence of false flame signal during post-purging
RED
– flame sensor defective or dirty
– 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
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
DANGER
personnel, in accordance with the contents of this
manual and in compliance with the standards and
regulations of current laws.
23
GB
Probable cause
Tab. J
20148481
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