Faults - Possible Causes - Solutions; Tracing The Causes Of The Malfunctioning; Visual Diagnostics; Software Diagnostics - Riello RS5 Installation, Use And Maintenance Instructions

8

Faults - Possible causes - Solutions

Here below you can find some causes and the possible solutions
for some problems that could cause a failure to start or a bad
working of the burner.
In most cases, an operation irregularity leads to the lighting up of
the signal inside the reset button of the control box (Fig. 5 on
page 12).
When lock out lamp lights the burner will attempt to light only after
pushing the reset button If ignition is then normal, the lockout can
be attributed to a temporary fault.
However, if lockout continues, you must determine the cause of
the problem and take the action illustrated in Tab. S and Tab. T .
8.1

Tracing the causes of the malfunctioning

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 (lockout), and then press the re-
set button.
The control box generates a sequence of pulses (1 second
apart), which is repeated at constant 3-second intervals.
RED LED lit
wait for at least 10s
Below is a list of the possible methods for resetting the control
box and for using the diagnostics.
Pressing the button
From 1 to 3 seconds
More than 3 seconds
More than 3 seconds starting from
the condition of visual diagnostics
8.1.1

Visual diagnostics

Indicates the type of burner malfunction causing lockout.
To visualise the diagnostics proceed as follows:
 keep the button pressed for more than 3s. from the fixed red
led condition (burner lockout).
A yellow light blinks to tell you the operation is done.
 Release the button once the light has blinked.
 The number of blinks indicates the reason for the malfunc-
tioning (refer to the coding in Tab. T).
Faults - Possible causes - Solutions
Press reset
Lockout
for > 3s
Control box status
Reset of the control box without visualisation of the visual diagnostics.
Visual diagnostics of the lockout condition:
(LED blinks at 1-second intervals).
Diagnostic software using an optical interface and PC
(possibility of displaying the hours the machine has been running, faults, etc..).
27
In the event the burner stops, in order to prevent
any damage to the installation, do not unblock the
burner more than twice in a row.
If the burner locks out for a third time, contact the
WARNING
customer service.
In the event there are further lockouts or faults
with the burner, the maintenance interventions
must only be carried out by qualified, authorised
personnel, in accordance with the contents of this
DANGER
manual and in compliance with the standards and
regulations of current laws.
Once you have seen how many times the light blinks and identi-
fied the possible cause, the system must be reset by holding the
button down for 1 - 3 seconds.
Pulses
8.1.2

Software diagnostics

Gives an analysis of the life of the burner, through optical connec-
tions with a PC showing the working hours, number and types of
lockout, control box serial number etc.
To view diagnostics, proceed as follows:
 keep the button pressed for more than 3 seconds from the
fixed red led condition (burner lockout).
A yellow light blink to tell you the operation is done.
 Release the button for 1 second and then press again for
over 3 seconds until the yellow light blinks again.
 Once the button is released, the red LED will flash intermit-
tently with a higher frequency: only now can the optical link
be activated.
Once the operations have been carried out, it is necessary to re-
set the initial state of the control box using the reset procedure.
GB
3s interval Pulses
Tab. Q
Tab. R
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