Carel humiSonic Compact - Alarms

27
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
12. ALARMS
red LED signal (*) display code meaning cause solution alarm relay
activation
action reset
2 fast ashes Et Autotest failed - Fill not connected or insuf-
cient
- drain open
- faulty oat
Check:
• water supply and
ll valve;
• blockage of lter on
ll solenoid valve;
• check drain
solenoid valve and
drain connection;
yes humidication
interrupted
ESC / Digital 29
5 fast ashes EP No production Malfunction of piezoelectric
transducers
Carry out maintenan-
ce on tank
yes humidication
interrupted
ESC / Digital 29
3 fast ashes EF No water Interruption to water supply or
ll solenoid valve malfunction
Check:
• water supply and
ll valve;
• blockage of lter on
ll solenoid valve
yes
(in the 10
min. waiting
period)
humidication
interrupted
only per 10
minutes
automatic (after
10 minute wait,
see Chap. 9.5)
4 fast ashes Ed No drain Drain solenoid valve/circuit
malfunction
Check drain valve and
drain connection
yes humidication
interrupted
ESC / Digital 29
5 slow ashes CL Tank maintenance
request signal
b5 operating hours for
recommended maintenance
exceeded
Carry out mainte-
nance on tank and
transducers (cap. 13)
no signal only Reset hour
counter (See
Chap 7.5 or 8.8)
6 fast ashes PU External control si-
gnal not connected
correctly
Cable interrupted/discon-
nected/not connected
correctly.
Check the reference
signal (4 to 20 mA or 2
to 10V).
yes humidication
interrupted
AUTO
2 slow ashes H^ High humidity The signal from the probe indi-
cates humidity above 80%rH
Check humidity probe
signal/cable
yes humidication
interrupted
AUTO
3 slow ashes H_ Low humidity The signal from the probe indi-
cates humidity less than 20%rH
Check humidity probe
signal/cable
yes humidication
interrupted
AUTO
4 slow ashes EE EEPROM alarm Problems in the EEPROM If the problem persists,
contact the CAREL
service centre
yes humidication
interrupted
If this persists
contact service
1 fast ash E0 Functional test not
performed
Functional test not performed
by manufacturer/EEPROM
problems
If the problem persists,
contact the CAREL
service centre
yes humidication
interrupted
If this persists
contact service
7 slow ashes OFL Main Oine Loss of connection from the
serial main (If D37=1)
Check state of the
Main / Cable
yes humidication
interrupted
AUTO
8 fast ash EL Water level alarm Level too high during atomised
water production due to:
• ll SV leak
• transducer malfunction
• fan malfunction
Check:
• ll SV
• transducers
• fans
yes humidication
interrupted
AUTO
6 slow ashes ES1
ES2
ES3
Alarm on secondary
unit 1/2/3
Display secondary unit from
terminal for details of the alarm
see specic alarm
code, chapter “Network
connection”
yes signal only AUTO
1 slow ash -bu Backup unit not
available
The backup unit is o or has an
alarm: contact J17 on the main
unit is open
Check the connection
from the alarm relay
on the backup unit to
input J17 on the main
unit.
no signal only AUTO
9 fast ashes EtL End of piezoelectric
transducer life
The unit has reached AF
working hours (default 9999 h)
Replace the
piezoelectric
transducers to
guarantee rated unit
production
yes signal only Reset internal
piezoelectric
transducer coun-
ter by setting
parameter d6 to
zero (See 8.8)
Tab. 12.a
To reset the alarms, press ESC once to mute the buzzer, press ESC a second time to completely reset the alarm.
(*) Fast ash: 0.2 seconds ON and 0.2 seconds OFF
Slow ash: 1 second ON and 1 second OFF