Riello 3768000, Installation, Use And Maintenance Instructions

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2902768
15 GB
6.1 OPERATING FAULT DIAGNOSTICS
The control box has a self-diagnostic system, which easily allows identifying the operating faults ( RED LED
signal). To use this function, wait at least ten seconds from the safety lock out, and then press the reset but-
ton for a minimum of 3 seconds. After releasing the button, the RED LED starts flashing as shown in the dia-
gram below.
The LED gives of a blink code every 3 seconds.
The blink codes give the information about the possible faults, as follows:
Tab. C
BLINK CODE POSSIBLE CAUSE
2
blinks

The flame does not stabilize at the end of the safety time:
– faulty or soiled ionization probe;
– faulty or soiled fuel valves;
– neutral/phase exchange;
– poor burner regulation.
3
blinks

Minimum air pressure switch does not close:
– air pressure switch faulty;
– air pressure switch incorrectly regulated;
– fan motor does not run.
4
blinks

Extraneous light during pre-purging, or control box faulty.
5
blinks

Minimum air pressure switch does not open:
– air pressure switch faulty;
– air pressure switch incorrectly adjusted.
7
blinks

Loss of flame during operation:
– poor burner regulation;
– faulty or soiled fuel valves;
– short circuit between ionization probe and earth.
10
blinks

Control box faulty.
         
Press reset
for
> 3s
interval Blink code Blink code
RED LED on
wait at least
10s
3s