6193
10
GB
4.10 BURNER START-UP PROGRAM DIAGNOSTICS
During start-up, indication is according to the following table:
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.
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:
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
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).
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:
– poor burner regulation (insufficient fuel oil);
– oil valve fault;
– short circuit between photocell and earth.
8 blinks
– Not used.
10 blinks
– Wiring error or internal fault.
RED LED on
wait at least 10 secs
Press button
for > 3 secs
signal
signal
Interval
3 secs