16
Volatile errors
(the appliance is able
to work powering on
only one HE at a time
and HE1 has the
priority; if the error
disappears, the
appliance resumes
normal operation)
E14
installation;
-
bad placed or damaged wiring
if the red power cable is
disconnected/damaged, connect/replace it;
E20
HE2 probe short/open circuit due to:
-
bad placed or damaged wiring/faulty component
if the component is
disconnected or faulty (sensor/s values not in compliance with “Sensor
Test Table”), connect/replace it.
E23
High difference of temperature measured by higher and lower sensors into
the inlet tank due to:
-
HE2 probe incorrect positioning
if the component is not entirely into
the HE2 sheath, place it in the right position;
-
HE2 sensor/s out of tune
if the component is faulty (values not in
compliance with “Sensor Test Table”), replace it.
E24
Low heating rate concerning the inlet tank due to:
-
incorrect appliance horizontal installation
if the water pipes are on the
right, dismount the product from the wall and make the proper
installation;
-
bad placed or damaged wiring
if the blue power cable is
disconnected/damaged, connect/replace it;
-
faulty component
if the ohmic resistance value between the HE2
fastons is not in compliance with the nominal value (R ~ 53 Ω), replace it.
4.2 Malfunctioning
Instruction for competent and skilled technical workers
Info missing
(the button
HMI or the LCD
display is
switched off)
Power missing to the appliance due to:
-
no power from mains (
could be check by the end user, too
)
if the home power
network is not well-working, contact the power mains technical service;
-
power missing to the PCB (
could be check by the end user, too
)
if the appliance is
switched off, switch on it pressing the ON/OFF button;
-
bad placed or damaged wirings
if the power cable is disconnected/damaged,
connect/replace it.
Power missing to the button HMI or to the LCD display due to:
-
bad connection of wirings
if the communication cable between the PCB and the
interface is not well connected, place it in the right position;
-
bad placed or damaged wirings
if the communication cable between the PCB and
the interface is disconnected/damaged, connect/replace it;
-
PCB break
if the PCB is damaged, replace it.
Button HMI or LCD display broken due to:
-
faulty component
if the HMI is damaged, replace it.
Water leakage
From the pipe due to:
-
wrong pipe tightening
if the inlet/outlet pipe is bad connected and water comes
out from it, restore the connection.
From the tank flange due to:
-
wrong flange tightening
if water comes out from the flange, check the flange bolts
tightening;
-
damaged gasket
if the component is broken, replace it.
From the safety valve due to:
-
drainage pipe missing
a drip of water by the device should be considered normal
during/after the heating phase; if the drainage pipe is missing, place it;
