Burner Start-Up Cycle Diagnostics; Operating Fault Diagnostics - Riello P 140 T/G Manuel D'entretien

9. BURNER START-UP CYCLE DIAGNOSTICS

During start-up, indication is according to the followin table:
Sequences
Pre-purging
Ignition phase
Operation, flame ok
Operating with weak flame signal
Electrical supply lower than ~ 170V
Lock-out
Extraneous light
Key:

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.
RED LED on
wait at least 10 s
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:
SIGNAL
2 flashes
3 flashes
4 flashes
7 flashes
8 flashes
10 flashes
COLOUR CODE TABLE
Off Yellow
Press button
for > 3 s
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).
– Not used.
– Not used.
Loss of flame during operations:
– poor burner regulation (insufficient light oil);
– faulty or soiled light oil valves;
– short circuit between photocell and earth.
– Not used.
– Wiring error or internal fault.
Green
Interval
Signal
PROBABLE CAUSE
51
Colour code
Red
3 s Signal