Riello PRESS 30 N/ECO Installation, Use And Maintenance Instructions page 32

4.10 START-UP PROGRAMME DIAGNOSTIC
During the start-up programme, the indications are shown in the following table:
Sequences
Preventilation
Ignition phase
Operation with flame ok
Operation with weak flame
Electrical supply lower than
Lock-out
Extraneous light
Key: Off
4.11 OPERATING FAULT DIAGNOSTIC
The control box has a self-diagnostic system by which it it is possible to simply identify the possible causes
of malfunctioning (signal RED LED).
To use this function, wait at least ten seconds from the moment the control box is placed in safety mode,
and then press the reset button for a minimum of 3 seconds.
After releasing the button, the RED LED starts flashing as shown in the diagram below.
RED LED on
wait at least 10 s
The pulses of the LED constitute a signalwith intervals of approximately three seconds.
The number of pulses will provide the information on the possible faults, as per the table below:
SIGNAL
2 blinks
3 blinks
4 blinks
7 blinks
8 blinks
10 blinks
6192
COLOUR CODE TABLE
~
170V
Yellow
press the button
for > 3 secs.
No stable flame is detected in the safety time:
– photocell fault;
– oil valve fault;
– neutral/phase reversal;
– faulty ignition transformer
– poor burner regulation (insufficient fuel oil).
Min. air pressure switch (if installed) does not close:
– air pressure switch faulty;
– air pressure switch not regulated;
– max. air pressure switch triggered (if installed).
Min. air pressure switch (if installed) does not open or light in the chamber before
ignition:
– air pressure switch faulty;
– air pressure switch not regulated.
Loss of flame during operation:
– burner not regulated (insufficient fuel oil);
– oil valve fault;
– short circuit between photocell and earth.
– Faulty thermostat for oil permissive signal;
– Heating resistances blown.
– Wiring error or internal fault.
Green Red
Interval
signal 3 secs
PROBABLE CAUSE
10 GB
Colour code
signal