Burner Start-Up Cycle Diagnostics; Resetting The Control Box And Using Diagnostics; Resetting The Control Box; Visual Diagnostics - Riello RL 190 Installation, Use And Maintenance Instructions

9.5

Burner start-up cycle diagnostics

During start-up, indication is according to the following table:
Sequences
Pre-purging
Ignition phase
Operation, flame ok
Operating with weak flame signal
Electrical supply lower than ~ 170V
Lockout
Extraneous light
Key: Off
9.6

Resetting the control box and using diagnostics

The control box features a diagnostics function through which
any causes of malfunctioning are easily identified (indicator: RED
LED).
To use this function, you must wait at least 10 seconds once it
has entered the safety condition (lock-out), and then press the
reset button.
RED LED on
wait at least 10s
The methods that can be used to reset the control box and use
diagnostics are given below.
9.7

Resetting the control box

To reset the control box, proceed as follows:
– Hold the button down for between 1 and 3 seconds.
The burner restarts after a 2-second pause once the button is
9.8

Visual diagnostics

Indicates the type of burner malfunction causing lock-out.
To view diagnostics, proceed as follows:
– Hold the button down for more than 3 seconds once the red
LED (burner lock-out) remains steadily lit.
A yellow light pulses to tell you the operation is done.
Release the button once the light pulses. The number of times
it pulses tells you the cause of the malfunction, according to
the coding system indicated in the table on pag. 23.
2916074
Maintenance
Colour code table
Yellow
Lock-out
Green Red
The control box generates a sequence of pulses (1 second
apart), which is repeated at constant 3-second intervals.
Once you have seen how many times the light pulses and identi-
fied the possible cause, the system must be reset by holding the
button down for between 1 and 3 seconds.
Press reset
for > 3s Pulses
released.
If the burner does not restart, you must make sure the limit
thermostat is closed.
22 GB
Colour code
Interval
3s Pulses