
Malfunctions, possible causes and solutions
93
BOILER STA-
TUS
MALFUNCTION
PROBABLE CAUSE
USER'S TASKS
QUALIFIED PERSON-
NEL'S TASKS
E04**
CH system water pressu-
re is low.
The system has been
recently bled.
Fill the system (see section Boiler block).
If the error occurs again several times, contact a quali-
fied Service Centre or qualified personnel.
The system is leaking.
Check system.
Pressure transducer is
disconnected.
Contact qualified person
-
nel
Reconnect it.
Pressure transducer is
faulty.
Contact qualified person
-
nel
Replace it.
E05**
Flow probe failure.
Flow probe is electrically
disconnected.
Contact qualified person
-
nel
Reconnect it.
Flow probe faulty.
Contact qualified person
-
nel
Replace it.
E06**
DHW probe failure (KC).
DHW probe is electrically
disconnected.
Contact qualified person
-
nel
Reconnect it.
DHW probe faulty.
Contact qualified person
-
nel
Replace it.
E07**
Flue gas probe failure.
Flue probe is electrically
disconnected.
Contact qualified person
-
nel
Reconnect it.
Flue probe is faulty.
Contact qualified person
-
nel
Replace it.
E08
Automatic filling procedu
-
re failure.
System pressure is not
enough for filling (not
enough water inside the
system or no water at all).
Contact qualified person
-
nel
Restore system pressure.
Solenoid valve is ob-
structed.
Contact qualified person
-
nel
Remove any obstruction
inside the solenoid valve.
Solenoid valve is faulty.
Contact qualified person
-
nel
Replace it.
E09
System pressure is too
close to the max. limit.
During manual filling,
a system pressure too
close to the safety valve
drain value has been
restored.
Progressively drain the system until the error symbol
disappears.
E12**
DHW inlet probe failure
(KC).
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E12**
Water heater probe (KR/
KRB with optional exter-
nal water heater fitted
with NTC probe)
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
Содержание ITACA KC 24
Страница 8: ...8 7 Malfunctions possible causes and solutions 92 7 1 Troubleshooting 92...
Страница 69: ...Instructions for the installer 69 Fig 26 Available head KC KR KRB 24 Fig 27 Available head KC KR KRB 28...
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