Riello PRESS 45 N/ECO Installation, Use And Maintenance Instructions page 32

4.10 BURNER START-UP PROGRAM DIAGNOSTICS
During start-up, indication is according to 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 DIAGNOSTICS
The control box has a self-diagnostic system, which allows operating faults to be found easily: (RED LED)
signal.
To use this function, wait at least ten seconds from the safety lock out, and then press the reset button for a
minimum of 3 seconds.
After releasing the button, the RED LED starts blinking as shown in the diagram below.
RED LED on
wait at least 10 secs
The pulses of the LED constitute a signal with intervals of approximately three seconds.
The number of pulses will provide the information on the possible faults, according to the table below:
SIGNAL
2 blinks
3 blinks
4 blinks
7 blinks
8 blinks
10 blinks
6193
COLOUR CODE TABLE
~
170V
Yellow
Press button
for > 3 secs
A stable flame is not detected in the safety time:
– faulty photocell;
– 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:
– poor burner regulation (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