Riello RG2 - Lockout Types and Solutions

37
20136866
GB
Start-up, calibration and operation of the burner
6.9 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). 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:
(*) only for suitable applications
Tab. P
Blink frequency of the reset button for status indication (see par-
agraph “Fault diagnostics - lockouts” on page 30).
Lockout description Lockout time Led colour Probable cause
Presence of extraneous light
when the motor starts
After 25 seconds
– presence of a false flame after heat request
Pre-heating not terminated (*) After 600 seconds
0.5 sec ON
2.5 sec OFF
– fault with the resistor of the oil pre-heater (*)
– fault with the switch or start-up thermostat (*)
– the bridge socket P is not connected, or the heater is
faulty
Presence of extraneous light
detected during pre-purging
After 25 seconds – presence of false flame signal during pre-purging
The flame is not detected after
the safety time
After 5 seconds
after the activation of
the oil valve
RED
Steady ON
– flame sensor defective or dirty
– oil valve defective or dirty
– faulty ignition transformer
– badly regulated burner
– no fuel oil
Flame failure during operation After 3 recycles – burner not calibrated correctly
– oil valve defective or dirty
– flame sensor defective or dirty
Fan motor error Immediate – faulty fan motor
– fan motor not connected
Fault inside the electronic cir-
cuit controlling the oil valve
Immediate – faulty oil valve
– fault inside the electronic circuit controlling the oil
valve
Eeprom error Immediate – faulty internal memory
WARNING
To reset the control box after visual diagnostics
have been displayed, you must press the reset
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.