69
BoIleR STaTuS
malFunCTIon
PRoBaBle CauSe
SoluTIon
e15**
Return probe failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
e24**
Solar collector failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
e27**
Solar valve failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
e28**
Solar water cylinder failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
e31**
Remote Control connection failure
(shown on the Remote Control display).
The Remote Control is not connected to
boiler board.
Reconnect it.
Remote Control is faulty.
Replace it.
Boiler board is faulty.
Replace it.
e35**
Safety thermostat
protecting the mixed
'zone 2' triggering
(with zone kit installed, only)
Mixer valve is faulty.
Replace it.
Thermostat is disconnected.
Reconnect it.
Thermostat is faulty
Replace it.
e36**
Flow probe failure on one of the
installed zones.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
e40*
Fan failure.
Fan disconnected.
Reconnect it.
Fan faulty.
Replace it.
e41**
No communication between board and
peripheral devices (panel interface and/
or zone/solar boards).
Interface display is disconnected.
Reconnect it.
Zone/solar boards are disconnected.
Reconnect them.
Interface display and/or zone/solar
boards are faulty.
Replace them.
e42
Solar system setting error.
Wrong boiler board or solar board setting
parameters.
Check that the P03 and P18 parameter
set values match with those specified
on the reference tables.
e43
Heating zones configuration error.
Wrong parameter setting.
Boiler PCB parameter values are not set
correctly.
Check that the P61 parameter set
value match with the one specified on
the reference tables.
e44**
Ambient probe 1 failure.
Ambient probe is disconnected.
Reconnect it.
Ambient probe is faulty.
Replace it.
e45**
Ambient probe 2 failure.
Ambient probe is disconnected.
Reconnect it.
Ambient probe is faulty.
Replace it.
e46
Pressure transducer failure.
Pressure transducer is disconnected.
Reconnect it.
Pressure transducer is faulty.
Replace it.
e47
External probe malfunction (with
installed ambient probe).
External probe is disconnected.
Reconnect it.
External probe is faulty.
Replace it.
e80*
The ∆T between flow and return is not
within the limits.
Flow and/or return probes are faulty.
Replace them.
Obstructed bypass pipe.
Remove any obstructions, or replace
the pipe.
The bypass valve is not assembled or
wrongly assembled.
Restore bypass valve correct
assembling.
Heat exchanger primary circuit is
obstructed.
Clean or replace the exchanger.
Summary of Contents for ITACA KC 12
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