Alarms - Carel HumiSonic Manual Del Usuario

Signal Code and
Red LED (*) symbol
on display
(flashing)
2 fast flashes Et -
5 fast flashes EP
3 fast flashes EF
4 fast flashes Ed
5 slow flashes CL
6 fast flashes PU -
2 slow flashes H ¯
3 slow flashes H_
4 slow flashes EE
1 fast flash E0
7 slow flashes OFL
8 fast flashes EL
6 slow flashes ES1
ES2
ES3
1 slow flash -bu
9 fast flashes EtL
To reset the alarms, press ESC once to mute the buzzer, press ESC a
second time to completely reset the alarm.
(*) Fast flash: 0.2 seconds ON and 0.2 seconds OFF
Slow flash: 1 second ON and 1 second OFF

11. ALARMS

Meaning Cause
Autotest failed - Fill not connected or
insufficient
- drain open
- faulty float
no production malfunction
of piezoelectric transducers
no water Interruption to feedwater
supply or fill solenoid valve
malfunction
drain fault Drain solenoid valve/circuit
malfunction
tank maintenance Operating hours for
request signal recommended maintenance
(b5) exceeded
External control Cable interrupted/
disconnected/
signal not connected
not connected properly.
correctly
High humidity The signal from the probe
indicates humidity above
80%rH
Low humidity The signal from the probe
indicates humidity less than
20%rH
EEPROM alarm Parameter memory
corrupted
Functional test not Functional test not
performed by manufacturer/
performed
EEPROM problems
Main unit offline No communication with
the Main unit via serial (if
D37=1)
Water level alarm Level too high during
atomised water production
due to:
• fill SV leak
• transducer malfunction
• fan malfunction
Alarm on Secondary Display Secondary unit from
unit 1/2/3 terminal for details of the
alarm
Backup unit not The backup unit is off or
available
has an alarm: contact J17
on the main unit is open
End of piezoelectric The unit has reached AF
transducer life
working hours (default
9999 h)
Solution
Check:
• feedwater supply and fill
valve;
• blockage of filter on fill
solenoid valve;
• drain solenoid valve and
drain connection;
Carry out
maintenance on the tank
Check:
• feedwater supply and fill
valve;
• blockage of filter on fill
solenoid valve;
check drain valve and drain
connection
Carry out maintenance on tank
and transducers (chap. 12)
Check the reference signal (4
to 20 mA or 2 to 10V).
Check humidity probe signal/
cable
Check humidity probe signal/
cable
If the problem persists, contact
the CAREL service centre
If the problem persists, contact
the CAREL service centre
Check Main unit status /
communication cable
Check:
• fill SV
• transducers
• fans
see specific alarm
code, chapter "Network
connection"
Check the connection
from the alarm relay on the
backup unit to input J17 on
the main unit.
Replace the piezoelectric
transducers to guarantee
rated unit production
25 Direct version for room applic. +0300062EE - rel. 1.4 - 24.09.2020
Alarm relay Action Reset
activation
yes humidification ESC / Digital
interrupted 29
yes humidification ESC / Digital
interrupted 29
yes humidification automatic
(in 10 minute interrupted only (after 10
waiting for 10 minutes minute wait,
time) see chap. 8.5)
yes humidification ESC / Digital
interrupted 29
no signal only Reset hour
counter (see
chap. 6.6 or
7.8)
yes humidification AUTO
interrupted
yes humidification AUTO
interrupted
yes humidification AUTO
interrupted
yes humidification If it persists,
contact
interrupted
service
yes humidification If it persists,
contact
interrupted
service
yes humidification AUTO
interrupted
yes humidification AUTO
interrupted
yes signal only AUTO
no signal only AUTO
yes signal only Reset internal
piezoelectric
transducer
counter
by setting
parameter d6
to zero (see
chapter 7.8)
ENG
Tab. 11.a