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1.15.3. Shut-down due to low water pressure
If error e04, relating to shut-down due to low system pressure, (indicating safety water pressure switch triggering)
flashes, fill the system using filler cock in fig. 2 (model KC) or the cock on the cold water supply pipe (models KR and
KRB).
Error e04 is displayed when system pressure goes below 0.4 bar, and error will be automatically reset as soon as
system pressure reaches 1.0 bar.
Water pressure must be 1-1.3 bars while the boiler is cold.
In order to restore water pressure, proceed as follows:
- turn the filling cock (fig. 2) anticlockwise to allow water to enter the boiler (model KC) or, for models KR and KRB,
open the cock on the cold water supply pipe;
- keep the cock open until the control panel shows a value of 1÷1,3 bar;
- turn cock clockwise to close it (model KC) or, for models KR and KRB, close the cock on the cold water supply pipe.
If the boiler still fails to operate, contact a Service Centre or a qualified service engineer
.
Make sure you close the cock carefully after filling.
If you do not, when the pressure increases, error e09 may be displayed and the heating system
safety valve may activate and discharge water.
AuToMATIC fILLING eNABLeD (P94 = 1)
When automatic filling is activated,
symbol and pressure current
value are displayed. As soon as
pressure reaches 1 bar, automatic
filling will be completed, and display
standard screen will appear again. If,
on the other hand, automatic filling
cannot be successfully completed,
error e08 - described in next
paragraph - will occur.
If system pressure goes below 0.4 bar (safety
water pressure switch triggering), error e04 and
current pressure will be displayed. All buttons are
disabled.
AuToMATIC fILLING DISABLeD (P94 = 0)
Summary of Contents for ITACA KC 12
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