68
BoIleR STaTuS
malFunCTIon
PRoBaBle CauSe
SoluTIon
e01*
Burner does not ignite
Gas supply failure.
Check gas supply.
Check gas supply cock or gas network
safety valve intervention.
Gas valve is disconnected.
Reconnect it.
Gas valve is faulty.
Replace it.
The board is faulty.
Replace it.
Burner does not ignite:
there is no spark
Ignition relay is faulty.
Replace the electrode.
Ignition transformer is faulty
Replace the ignition transformer.
Electronic board does not ignite. It is
faulty.
Replace electronic board.
Burner ignites for a few seconds and
goes off.
Electronic board does not detect flame:
inverted phase and neutral.
Check the correct phase-neutral
connection to the power supply.
Detection electrode cable is interrupted.
Reconnect or replace wire.
Detection electrode is faulty.
Replace the electrode.
Electronic board does not detect flame:
it is faulty.
Replace electronic board.
Ignition heat input setting is too low.
Increase it
Minimum heat input is not set correctly.
Check burner setting
e02*
Flow temperature exceeded the max.
allowed value.
Circulation pump is faulty.
Replace it.
Circulation pump is seized.
Check pump electrical connection.
e03*
Flue thermostat triggering.
Poor flue draught.
Check the chimney and ambient air
suction openings.
Flue vent / air intake duct is obstructed.
Check for any duct obstruction, and
eliminate.
Flue gas thermostat is faulty.
Replace it.
e04**
CH system water pressure is low.
The system is leaking.
Check system.
Pressure transducer is disconnected.
Reconnect it.
Pressure transducer is faulty.
Replace it.
e05**
Flow probe failure.
Flow probe is electrically disconnected.
Reconnect it.
Flow probe faulty.
Replace it.
e06**
DHW probe failure.
DHW probe is electrically disconnected.
Reconnect it.
DHW probe is faulty.
Replace it.
e07**
Flue probe failure.
Flue probe is electrically disconnected.
Reconnect it.
Flue probe is faulty.
Replace it.
e08
Automatic filling failure.
System pressure is not enough for filling
(not enough water inside the system or
no water at all).
Restore system pressure.
Solenoid valve is obstructed.
Remove any obstruction inside the
solenoid valve.
Solenoid valve is faulty.
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**
Water cylinder probe fault (KRB with
external water cylinder, optional, and
NTC probe).
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
6.
TRouBLeSHooTING
Summary of Contents for ITACA KC 12
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