red LED (filter):
off
= UNICO
on
= UNICO HP (with heat pump)
green LED (compr.):
off
= with correction of room tem-
perature
on
= without correction of room
temperature
orange LED (timer):
off
= without correction of room
temperature
on
= with correction of room tem-
perature
green LED (power):
off
= stand-by in case of blackout
on
= restart in case of black-out
Should there be a jam in the air-conditioning system with alarm
signals according to the table here following, please be ready to
refer to the Service Centre which LED’s are blinking in order
to simplify their intervention.
Starting from the left:
CODE
ALARM
DESCRIPTION
POWER
green LED
TIMER
orange LED
COMPR.
green LED
FILTER
red LED
1-FS
dirty filter
O
2-HTI
internal battery overheat
O
3-HTE
external battery overheat
O
O
4-LT
internal battery low temp.
O
5
pump working continuously
O
O
6-CF/RL
batt. temp. not reached
O
O
7-OF
water level
O
O
O
8-CKS
eeprom parameters not valid
O
9
-
O
O
10-TSF
short on room sensor
O
O
11-TSF
room sensor disconnected
O
O
O
12-TSF
short on evaporator sensor
O
O
13-TSF
evap. sensor disconnected
O
O
O
14-TSF
short on condenser sensor
O
O
O
15-TSF
condenser sensor
O
O
O
O
The end of the self-test will be signalled by all the LEDs
lighting up at once and blinking ten times, as well as by an
acoustic signal.
At this time, you can adjust the temperature reading on
the room temperature sensor. This correction is important if
the air conditioner is installed high on the wall in a room
where the warm air tends to stratify upward (as in rooms
with high ceilings or other sources of heat besides the air
conditioner). The sensor will read a temperature 3°C lower
than the effective one, in this case, to compensate for
the difference between the lower inhabited part of the
room and the temperature at the height of the sensor. To
enter or remove this correction proceed as follows:
1 Check the status of the machine as described
previously, and if no correction has been made, press
the button on the console while the acoustic signal is
on at the end of the self-test.
2 To remove the correction, press the button while the
acoustic signal is on at the end of the self-test.
green orange green
red
-
Check after a few seconds to see whether the
equipment heats normally (if equipped with heat pump
function) for about 2 minutes and then, after a few
seconds, that it cools for another 2 minutes. Before
concluding the self-test, the electronic part tests the
temperature probes to make sure they are operating
normally. If any of these should not be working, the
corresponding signal led remains lit for 20 sec. (see
table on next page).
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