5840
13
GB
4.11
BURNER START-UP PROGRAM DIAGNOSTIC
During start-up, indications are explained in the following table:
4.12
OPERATING FAULT DIAGNOSTICS
The control box has a self-diagnostic system, which easily allows identifying the operating faults (
RED LED
signal).
ITo 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 flashing 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:
Key
Yellow
Green
Red
SIGNAL
PROBABLE CAUSE
2 blinks
No stable flame is indicated in the safety period:
– faulty photocell;
– oil valve fault;
– faulty ignition transformer;
– poor burner regulation.
3 blinks
– Not used.
4 blinks
– Light in the chamber before ignition.
7 blinks
Loss of flame during operation:
– poor burner regulation;
– oil valve fault.
8 blinks
– Faulty thermostat for oil enabling signal;
– Heating resistors blown.
10 blinks
– Wiring error or internal fault;
– Presence of electromagnetic disturbance: use the radio disturbance protection
kit.
RED LED on
wait at least 10 s
Press button
for > 3 secs
signal
signal
Interval
3 secs
