Visual Diagnostics Of The Control Box; Colour Code Of The Control Box Reset Button Led - Riello Gulliver BG6.1D Installation, Use And Maintenance Instructions

9.4

Visual diagnostics of the control box

The control box has a diagnostic function that can identify the likely causes of any malfunctions (indicator: RED LED).
In order to be able to use this function, press and hold the reset button for at least 3 seconds from when the appliance is made safe
(lockout). The control box generates a sequence of led pulses, which is repeated at constant 2-second intervals.
RED LED on
press reset for 3 sec.
The sequence of pulses issued by the control box identifies the possible types of malfunction, which are listed in the table below.
SIGNAL
2 blinks

4 blinks

7 blinks

8 blinks

To reset the control box after the diagnostics display, press the lockout-reset button.
WARNING
9.4.1

Colour code of the control box reset button LED

Operating status
Standby
Pre-purging
Long pre-purging
Transformer turn on
Regular flame
Post-purging
Recycle
Continuous purging (*)
Extraneous light during standby
Extraneous light during post or continuous purging (*)
Extraneous light during lockout
Lockout
Lockout with continuous purging (*)
(*) only for suitable applications.
20015403
Maintenance
PROBABLE CAUSE
The flame does not stabilise at the end of the safety time:
– flame detector faulty or dirty;
– oil valve faulty or dirty;
– faulty ignition transformer;
– badly regulated burner.
Light present in the chamber before the burner's switching on or off:
– presence of extraneous light before or after the limit thermostat switchover;
– presence of extraneous light during pre-purging;
– presence of extraneous light during post-purging.
Loss of flame during operation:
– badly regulated burner;
– oil valve faulty or dirty;
– flame detector faulty or dirty.
Check and monitor the oil heater (if fitted):
– check the presence of the bridge socket "P".
26
Interval
Blinks

LED colour codes
Led off
Green
Green
Green + Yellow blinking
Green + Yellow blinking
Green +Yellow
Green + Yellow blinking
Green
Yellow blinking
Green + Yellow blinking
Red + Yellow blinking
Red
Red + Green
GB
Blinks
2s

ON
Blinking
speed
Seconds
Fast 0.3
Slow 0.3
Medium 2
Fast 0.3
Fast 0.3
Fast 0.3
OFF
0.3
2
1
0.3
0.3
0.3