Faults - Possible Causes - Solutions - Riello RLS 190/M MZ Installation, Use And Maintenance Instructions

(A)
P
(B)
T6,3H
250V
1
A
(C)
Lockout indicator
a-b Start-up sequence
b-b' Idle stages (without contact con-
firmation)
b(b')-a Post-purging programme
1 2
2
21
FAULTS - POSSIBLE CAUSES - SOLU-
TIONS
The control box is equipped with a lockout indi-
cator (A) that turns during the start-up pro-
gramme, and is visible from the small lockout
window.
When the burner does not start or stops, due to
a failure, the symbol that appears on the indica-
tor indicates the type of interruption.
The positions of the lockout indicator are shown
in (B).
S8889
Fuse replacement
The fuse 2)(C) is in the rear part of the control
box. A spare fuse 1) is also available: it can be
extracted after breaking the panel tab A) that
houses it. In the event that fuse 2) has been
tripped, replace it as shown in (C).
S8888
Find a list of faults, causes and possible solu-
tions for a set of failures that may occur and re-
sult in irregular burner operation or no
functioning at all.
If a burner malfunction is detected, first of all:
– check that the electrical wiring is adequately
connected;
– check whether fuel is delivered;
– check that every adjustment parameter is
adequately set.
In the event the burner stops, in order
to prevent any damage to the instal-
lation, do not unblock the burner
WARNING
more than twice in a row. If the burner
locks out for a third time, contact the
customer service.
In the event there are further lockouts
or faults with the burner, the mainte-
nance interventions must only be
DANGER
carried out by qualified, authorised
personnel, in accordance with the
S8884
contents of this manual and in com-
pliance with the standards and regu-
lations of current laws.