GB-23
ENGLISH
Alarm code
The electronic card contains an internal
diagnostic system which supervises the
correct operation of the system. When the
diagnostic system enters an alarm state,
the red LED on the main electronic card
flashes as follows:
• sequence of flashes of 0.5 seconds ON
and 0.5 seconds OFF with an interval of 5
seconds.
• The number of flashes varies according
to the error diagnosed.
Not all errors can be reset (see table below).
Error code Error Resettable
*
3 Air temperature sensor YES
4 Temp. sensor Indoor heat exchanger YES
5 Temp. sensor Outdoor heat exchanger YES
7 Outdoor unit error YES
10 EEPROM corrupted YES
11 Card serial number corrupted YES
12 Address/zone number incomplete YES
*NO: Unplug the system from the power supply, check and repair if necessary. Power up the system.
YES: Check
Accessories
For accessories, consult the product cata-
logue and documentation.
User guide
On completion of installation and with the
aid of the use and maintenance manual,
instruct the user in the correct operation of
the air conditioning system and how to
select the functions, such as:
• switch-on and switch-off;
• control functions.
Give the user the installation manuals for
the indoor and outdoor units and the use
and maintenance manual so that they can
be consulted for maintenance or other pur-
poses.
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