
Malfunctions, possible causes and solutions
94
BOILER STA-
TUS
MALFUNCTION
PROBABLE CAUSE
USER'S TASKS
QUALIFIED PERSON-
NEL'S TASKS
E15**
Return probe failure.
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E24**
Solar collector failure.
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E27**
Solar valve probe failure.
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E28**
Solar water heater probe
failure.
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E31**
Remote Control connec-
tion failure (only shown
on Remote Control
display).
The Remote Control is
not connected to boiler
board.
Contact qualified person
-
nel
Reconnect it.
Remote control faulty.
Contact qualified person
-
nel
Replace it.
Boiler board is faulty.
Contact qualified person
-
nel
Replace it.
E35**
Safety Thermostat trigge-
ring to protect the mixed
"zone 2" (with zone kit
"0KITZONE05" installed,
only).
Mixer valve is faulty.
Contact qualified person
-
nel
Replace it.
Thermostat is discon-
nected.
Contact qualified person
-
nel
Reconnect it.
Thermostat is faulty
Contact qualified person
-
nel
Replace it.
E36**
Flow probe failure on one
of the installed zones.
Probe is disconnected.
Contact qualified person
-
nel
Reconnect it.
Probe is faulty.
Contact qualified person
-
nel
Replace it.
E40*
Fan failure.
Fan disconnected.
Contact qualified person
-
nel
Reconnect it.
Fan faulty.
Contact qualified person
-
nel
Replace it.
E41**
No communication betwe-
en board and peripheral
devices (panel interfa-
ce and/or zone/solar
boards).
Interface display is di-
sconnected.
Contact qualified person
-
nel
Reconnect it.
Zone/solar boards are
disconnected.
Contact qualified person
-
nel
Reconnect them.
Interface display and/
or zone/solar boards are
faulty.
Contact qualified person
-
nel
Replace them.
Содержание ITACA KC 24
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