20
1.2
MAINTENANCE
In the even of a malfunction, 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 the event of faults.
Some of the functions, however, remain active (see FUNCTIONING
column).
The only way to solve the problem is to disconnect and reconnect
the appliance. If the alarm still appears, please contact the
authorised technical assistance.
Display alarms
Fault
Possible causes
Solution
The appliance
doesn't switch
on
No power supply
Check there is power supply (by turning a light on, for example).
Check that the thermal-magnetic circuit breaker used exclusively to protect
the appliance has not been tripped (if it has, reset it).
If the problem repeats immediately, please call the Service Centre and
avoid trying to make the appliance work.
Remote control batteries have run out
Check that the appliance can be turned on using the touch-screen display
and substitute the batteries.
The appliance
does not cool/
heat adequately.
The temperature set is too high or too low.
Check and, if necessary, adjust the temperature setting on the remote
control
The air filter is clogged
Check the air filter and clean it if necessary
Make sure that the air flow is not obstructed. Remove anything that might block the air flow.
The heating and cooling load has increased
(for example, a door or a window has been
left open or an appliance has been installed
in the room which generates a lot of heat).
Try to reduce the heating and cooling load of the room following
instructions below:
Cover large windows exposed to sunlight with curtains or with external
maskings (blinds, porches, reflecting films, etc.);
The air conditioned 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, hot plates etc.).
Alarm
Cause
Operation
E1
Faulty room temperature RT
sensor
It is still possible to activate Cooling, Dehumidification and Heating modes. It
only monitors the antifreeze function of the internal coil.
E2
Faulty internal coil IPT sensor None of the modes can be activated.
E3
E4
Faulty external coil OPT
sensor
None of the modes can be activated.
E5
Faulty internal fan motor
None of the modes can be activated.
E6
Antifreeze/High
condensation
None of the modes can be activated.
E7
Lack of communication with
the display *
None of the modes can be activated.
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
The condensate should flow freely through the dedicated pipe.
In the event of an alarm, check that the condensation pipe is not bent or
obstructed, thus preventing the water from flowing out.
* for DC Inverter models: lack of communication between the main,
power, driver or display boards
Troubleshooting
Summary of Contents for AW-XDO009-H11
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