31
ENG
“Wellness” +0300060EN - rel. 1.2 - 03.09.2012
installer
user
ser
vice
When an alarm is activated, the alarm button starts fl ashing intermittently.
In these conditions, pressing the alarm button once displays the type of
alarm (and the code, in line with the CAREL humidifi er standard).
In the case of potentially dangerous alarms, the controller automatically
stops the production of steam. For some alarm events, the alarm relay is
also activated at the same time as the signa (see the table below).
Once the causes of the alarm are no longer present, the humidifi er and
the alarm relay output can be reset automatically or manually, according
to the type of fault, while the message displayed is reset manually (see
the table below). Even if no longer active, the alarm status continues to
be displayed until the “reset display” button is pressed.
Active alarm states cannot be reset.
If more than one alarm is active, the display shows all the codes in
sequence, after having pressed the alarm button once and then pressing
the “UP” or “DOWN button.
9. TABLE OF ALARMS
alarms displayed
meaning
cause
solution
reset alarm
relay
consequence
Alarm: EP
Low Production
(Cylinder Off)
Low production
alarm
excessive reduction
in production
cylinder completely depleted or
water with excessive foam. Perform
maintenance on the cylinder
Manual
active
Stop
production
Alarm: EF
Lack of water
(Cylinder Off)
No water
no supply water
1. check that the supply hose from
the mains to the humidifi er and the
internal hoses are not blocked or
choked and that there is suffi
cient
pressure (0.1 to 0.8 MPa, 1 to 8 bar);
2. check the operation of the fi ll
solenoid valve;
3. check that the steam outlet is
not operating with excessive
backpressure, preventing the fl ow of
water into the cylinder by gravity;
4. check that the steam outlet hose is
not choked and that there are no
pockets of condensate
Automatic
(automatic water
return procedure)
(see par. 4.4.10)
Manual
active
Stop
production
Alarm: Ed
Drain alarm
(Cylinder Off)
Drain alarm
drain malfunction
check the water drain circuits and the
correct operation of the electric drain
pump, and check the condition of the
fi lter inside the cylinder
Manual
active
Stop production
Alarm: EL
Low current
(Cylinder Off)
Low current
alarm
power not available;
when the unit is
activated no steam is
produced
with the unit off and disconnected
from the mains, check the electrical
connections inside
Manual
active
Stop production
Alarm: EH
High current(
Cylinder Off)
High current
alarm
excess current in
the electrodes;
probable fault with
the electrodes or
water temporarily
too conductive
(especially when
restarting after a
short stop)
1. check the operation of the electric
drain pump;
2. check the seal of the supply
solenoid valve when not energised;
3. drain some of the water and
restart.
4. check for bridges between the
electrodes.
5. cylinder replacement and/or
maintenance
Manual
active
Stop production
Alarm: EC
High conductivity
(Cylinder Off)
High
conductivity
alarm
high conductivity of
the supply water
1. check the limit threshold set;
2. switch the unit off and clean the
electrodes that measure of the
conductivity of the water; if the
problem persists, change the
origin of the supply water or use a
suitable treatment system (partial
demineralisation).
N.B.: the problem is not resolved by
softening the supply water..
Manual
active
Stop production
Warning: Ec
High conductivity
High supply
water
conductivity pre-
alarm
high water
conductivity alarm
warning
1. check the conductivity of the supply
water, if necessary use a suitable
treatment system.
N.B.: the problem is not resolved by
softening the supply water
Automatic
not
active
signal only
Warning: E=
High temperature
high temperature
pre-alarm
high temperature
probe temperature
check the operation of the probe and
the high temperature parameter
Automatic
selectable
signal only.
Alarm:
E3 one probe fault
or offline
one probe
disconnected
alarm
one probe not
connected
check the connection of the probe,
and the setting of the parameters
(probe type and signal type)
Automatic
active
Stop
production
Alarm: E4
second probe fault
or offline
second probe
disconnected
alarm
second probe not
connected
check the connection of the probe,
and the setting of the parameters
(probe type and signal type)
Automatic
not
active
Stop
production
