Riello BS1F Instrucciones De Instalación, Uso Y Mantenimiento página 36

5.15 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).
Lockout description
Presence of parasite flame during
stand-by
Detection of parasite flame during
pre-purging
The flame is not detected after the
safety time
Flame failure during operation
Fan motor error
Fault with the gas valve control circuit
Eeprom error
Lockout due to air pressure switch
not closing after a heat request or af-
ter a recycle due to flame loss during
operation
Lockout due to a drop in air pressure
after the pre-purging was repeated
due to a previous lack of air or during
the safety time, or during normal op-
eration.
Lockout due to air pressure switch al-
ready switched to closing of the heat
request thermostat or after a recycle
due to flame loss during operation
Blink frequency of the reset button for status indication (see par-
agraph "Fault diagnostics - lockouts" on page 26).
To reset the control box after visual diagnostics
have been displayed, you must press the reset
button.
ATTENTION
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
ATTENTION
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.
20140262
Installation
Lockout time Led colour
After 25 seconds
After 1 second
3 seconds after the
activation of the gas
valve
After 3 recycles
Immediate
Immediate
Immediate
After 15 seconds
After 1 second
After 120 seconds
34
GB
The sequence of pulses issued by the control box of the LED in
the reset button identifies the possible types of fault, which are
listed in the table below:
– presence of a false flame after heat request or
during post-purging
– presence of false flame signal during pre-purging
– ionisation probe faulty or not connected
– gas valve
– faulty ignition transformer
– badly regulated burner
– burner not calibrated correctly
– ionisation probe faulty
– faulty fan motor
– fan motor not connected
– gas valve
– internal control circuit of the 1st stage gas valve
faulty
– faulty internal memory
– the air pressure is too low, (the head has been
poorly adjusted)
– The air pressure switch is defective: change it
– the air pressure is too low, (the head has been
poorly adjusted)
– The air pressure switch is defective: change it
– the air pressure switch is changed over to the op-
erational position, change the pressure switch
– the fan motor continues to be powered, check
the lockout of the flame control
Probable cause
Tab. S