53
S
I
U
3.2
EN
MAINTENANCE
In case of malfunctioning, please refer to the following table. If,
after performing the suggested checks, the problem is not solved,
please contact the authorised technical assistance.
An alarm code appears on the display in case of anomalies. Some
of the functions remain active (see FUNCTIONING column)
* for models 1018 DC, 1118 DC: lack of communication between the main, power, driver or display boards
The only way to solve the problem is to disconnect and connect the appliance. If the alarm still appears, please contact the authorised technical
assistance.
Display alarms
Anomaly
Possible cause
Solution
The appliance
doesn't switch
on
No power supply
Check the voltage (by turning the light on, for example).
Check that the exclusive magneto-thermic switch that protects
the appliance hasn't intervened (if it has, reset it). If the problem
repeats immediately, please call the Service Centre and avoid
trying to make the appliance work.
Batteries ran out
Check that the appliance turns on using the touch-screen display
and substitute the batteries.
The appliance
does not cool/
heat enough.
The set temperature is too high or too
low.
Check and
adjust the temperature on the remote
The air filter is clogged
Check the air filter and clean it if necessary
Check that there are no other obstacles
of the air flow both inside and outside.
Remove anything that might block the air flow.
The thermal refrigeration load has
increased (for example, a door or
a window has been left open or an
appliance has been installed in the
room, generating a lot of heat).
Try to reduce the thermal refrigeration load of the room with the
following advice:
Cover large windows exposed to sunlight with curtains or with
external maskings (blinds, porches, reflecting films, etc.);
The room must remain closed for as long as possible;
Avoid turning on halogen lamps or other high energy consumption
appliances such as small ovens, steam irons, cooking plates etc.
Alarm displayed
Cause
Functioning
E1
Broken room temperature RT
sensor
It is still possible to activate the Cooling, Dehumidification and
Heating modes. It only monitors the antifreeze function of the
internal battery.
E2
Broken internal battery IPT
sensor
None of the functioning modes works.
E3
Broken outside temperature
OT sensor
None of the functioning modes works.
E4
Broken outside battery OPT
sensor
It is still possible to activate the Cooling, Dehumidification and
Heating modes. Defrosting is performed at fixed times.
E5
Broken internal ventilator
motor
None of the functioning modes works.
E6
Broken external ventilator
motor
None of the functioning modes works.
E7
lack of communication
between the main boards,
power, driver or display *
None of the functioning modes works.
E8
Compressor discharge probe
failure *
None of the modes can be activated.
CP
Open CP contact
The appliance only works if the contact is closed. Check that the
clamps are connected.
OF
Maximum level float
intervention
During cooling and dehumidification, electronics switches the
compressor off and keeps the water distribution system active
with the battery - together with the fan - to disperse excess
water in the container. During heating, condensations should
drain freely through the specific pipe. In the event of an alarm,
check that the condensation pipe is not bent or obstructed, thus
preventing the water from flowing out.
Troubleshooting