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ALARMS
Below is a table for troubleshooting the faults
that may occur during operation of the machine.
Type
Flashing Time
of Alert
AUTO
FROST
Description of Fault
LED DL3
-
General Alarm.
FAN thermal contact.
5
One of the fans is not working.
FAN voltage/speed limits excee-
4
ded.
2
Faulty temperature probe.
6
Faulty CO
Replacement of filters
1
(alerted by differential pressure
switches) .
1
IAQ filter fault.
3
Electric defrost resistance fault.
-
Antifreeze Alarm.
7
T-EP Controller Error.
4
Max. FAN Rpm overcoming
-
Timekeeper Alarm
Present in case of any fault.
It is recommended to enter the Read
Menu to check the FAN operating pa-
rameters and identify which FAN is not
working.
It is recommended to enter the Read
Menu to check the FAN operating pa-
rameters and identify which FAN is not
working.
It is recommended to enter the Read
Menu to check the probe data and identify
which probe is faulty.
It is recommended to enter the Read
probe.
Menu to check the probe data and identify
2
which probe is faulty
Clean or replace the filters of the ma-
chine.
the icon automatically disappears.
Check the resistance reset thermostat;
Check the electrical connections;
It is recommended to enter the Read
Menu to check the probe data and identify
which probe is faulty.
Without antifreeze pre-treatment:
<-10°C outdoor temperature.
With antifreeze pre-treatment: <-20°C
outdoor temperature.
Check the electrical connections betwe-
en the controller and the power board of
the machine.
It is recommended to enter the Read
Menu to check the FAN operating pa-
rameters and identify which FAN is not
working
To check the unit filters.
181
English
Notes/Solution
At cleaned filter
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