Display Of The Last Lockout That Occurred; Lockout Types - Riello 484LD2X Installation, Use And Maintenance Instructions

– after the activation of a switch-off test;
– after flame disappearance during operation;
– after disconnecting and reconnecting the electrical supply.

8.10.4 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 25.
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.

8.11 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). The sequence of pulses issued by the control box
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 22.
To reset the control box after visual diagnostics
have been displayed, you must press the reset
push-button or the remote reset.
WARNING
2903266
Start-up, calibration and operation of the burner
Lockout time
After 25 seconds
After 600 seconds
After 25 seconds
After 25 seconds
After 5 seconds
from oil-valve starts
After 3 recycles
Immediate
Immediate
Immediate
 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.
of the LED in the reset push-button identifies the possible types
of fault, which are listed in the table below
Led colour
– 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;
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
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.
26 GB
Probable cause
.
Tab. G