53
6
Only with
rematic
®
SR 5240 or 2945 C3
K control:
Check the communi-
cation between control
and boiler by means
of the two LED’s on
the interface, visible
through the transpa-
rant part of the control
panel.
00W4H7900019
LED 1 is not flashing?
Interface or control box
is faulty
LED 2 is not flashing?
Interface or control is
faulty
Both LED’s are flashing?
Check the wiring on the
terminal strip and on the
control box
If the wiring is correct,
replace the control box.
7
Investigate boiler set-
tings and wiring
Check the parameter set-
tings of the boiler
If all is correct, replace
the control box.
Check the wiring on the
boiler terminal strip and to
the Gasmodul control box
Table 17
Fault-finding
10.2 Fault codes
In the event of an error message, both the
‘code’
-display and the
t
-display will flash.
For details see table 18.
For a readout of the most recent faults,
see Par. 6.9.
IMPORTANT:
Before resetting, accurately record the fault code (including figures, flashing digits and
dots) and remember to pass on this information when seeking assistance. The fault
code is important for correctly and rapidly tracing the nature of the fault.
NOTE:
Shut-off mode (code
b
, only dots in
t
-display are flashing, not digits) is a
normal boiler operating function and does not represent a boiler failure. However, this
may indicate a system problem, an internal fan check or an incorrect parameter set-
ting.
