6192
10
GB
4.10 START-UP PROGRAMME DIAGNOSTIC
During the start-up programme, the indications are shown in the following table:
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.
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:
COLOUR CODE TABLE
Sequences
Colour code
Preventilation
Ignition phase
Operation with flame ok
Operation with weak flame
Electrical supply lower than
~
170V
Lock-out
Extraneous light
Key:
Off
Yellow
Green
Red
SIGNAL
PROBABLE CAUSE
2 blinks
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).
3 blinks
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).
4 blinks
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.
7 blinks
Loss of flame during operation:
– burner not regulated (insufficient fuel oil);
– oil valve fault;
– short circuit between photocell and earth.
8 blinks
– Faulty thermostat for oil permissive signal;
– Heating resistances blown.
10 blinks
– Wiring error or internal fault.
RED LED on
wait at least 10 s
press the button
for > 3 secs.
signal
signal
Interval
3 secs
