Possible Cause - Riello 40 Montage- Und Bedienungsanleitung

7. FAULTS / SOLUTIONS
The control box has a self-diagnostic system, by which it is possible to easily check the faults and find the
solutions.
To use this function, wait for a minimum of 10 sec after the lock out, then push the reset button for 3 sec.
After releasing the button, the RED LED will begin to flash, as shown in the following schedule.
Red fault LED
waiting time 10s
The LED provide a blink code each 3sec.
The blink codes give the information of the possible faults, as follows:
BLINK CODE
2

3

4

5

7

10

Press lockout reset
button for > 3s

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.
Minimum air pressure switch does not close:
– air pressure switch faulty;
– air pressure switch incorrectly regulated;
– fan motor does not run;
– maximum air pressure switch operating.
Extraneous light during pre-purging, or control box faulty.
Minimum air pressure switch does not open:
– air pressure switch faulty;
– air pressure switch incorrectly adjusted.
Loss of flame during operation:
– poor burner regulation;
– faulty or soiled fuel valves;
– short circuit between ionization probe and earth.
Control box faulty.
Blink code Approx. 3s
   

POSSIBLE CAUSE

13 GB
Blink code
    
2622