ERROR
LEDS
OPERATION TIMER STANDBY
POSSIBLE CAUSE SYSTEM BEHAVIOUR SOLUTION
E0
l
F F
Unit has not been addressed correctly.
Operating mode selected is not compat-
ible with the system (ex. heating mode
has been selected, when the system
was in cooling mode, or vice versa).
Fan is stopped and flap is closed.
The system restarts automatically
as soon as the unit is addressed
correctly.
Fan is stopped and flap is closed.
The system restarts automatically
as soon as a correct operating
mode is selected.
Set the outdoor/indoor unit refrigerant
circuit address (see Installation
Instructions)
Select an available or compatible mode
with the other units of the system.
E1
O O F
Error on the outdoor unit. Fan is stopped and flap is closed.
The system restarts automatically
as soon as the problem on the out-
door unit is solved.
Check the error code using the appro-
priate LEDs on the PCB of the outdoor
unit.
Follow the indications of the diagnosis
for the outdoor unit.
E2
F O O Malfunctioning of the condensate draina-
ge system.
Fan is stopped and flap is closed.
Condensate drainage pump is acti-
vated.
The system restarts automatically
as soon as the condensate water
returns below the safety level.
Check that the condensate water tube
is not obstructed.
Check that the condensate water tube
has been installed correctly.
Check that the condensate drainage
pump is not defective and that it has
been connected to the PCB as shown in
the electrical wiring diagram.
Check that the float is not blocked or
defective and that it has been connec-
ted to the PCB as shown in the electri-
AUTO-DIAGNOSIS TABLE
O = LED OFF
l
= LED ON F = Flashing LED
