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9. BURNER START-UP CYCLE DIAGNOSTICS
During start-up, indication is according to the followin table:
10.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 sec-
onds.
After releasing the button, the RED LED starts flashing as shown in the diagram below.
The pulses of the LED constitute a signal spaced by approximately 3 seconds.
The number of pulses will provide the information on the possible faults, according to the table below:
COLOUR CODE TABLE
Sequences
Colour code
Pre-purging
● ● ● ● ● ● ● ● ● ● ●
Ignition phase
● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ●
Operation, flame ok
❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑
Operating with weak flame signal
❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍
Electrical supply lower than ~ 170V
● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ●
Lock-out
▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲
Extraneous light
▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲
Key:
❍
Off
●
Yellow
❑
Green
▲
Red
SIGNAL
PROBABLE CAUSE
2 flashes
The flame does not stabilise at the end of the safety time:
– faulty photocell;
– faulty or soiled light-oil valves;
– neutral/phase exchange;
– faulty ignition transformer
– poor burner regulation (insufficient light oil).
3 flashes
– Not used.
4 flashes
– Not used.
7 flashes
Loss of flame during operations:
– poor burner regulation (insufficient light oil);
– faulty or soiled light oil valves;
– short circuit between photocell and earth.
8 flashes
– Not used.
10 flashes
– Wiring error or internal fault.
RED LED on
wait at least 10 s
Press button
for > 3 s
Signal
Signal
Interval
3 s
