GB-21
ENGLISH
Error code (with CRC control)
For units with INFRARED REMOTE KIT,
refer to the manual supplied with the Kit
itself for error codes.
The indoor unit is designed to intercept any
system malfunction, shutting it down
immediately. The cause of the malfunction
can be identified by consulting table III
below:
With the diagnostic system, the red LED on
the electronic card begins to flash at half
second intervals, indicating an error code
that identifies the specific malfunction.
1. The red LED indicates error codes from
1 to 10 as follows:
LED off for 4 seconds, followed by a
number of flashes equal to the error
code number.
2. The red LED indicates error codes
above 10 as follows:
LED off for 4 seconds, followed by a
number of flashes equal to the first digit
of the code.
Next, the red LED remains off for
2 seconds, followed by a number of
flashes equal to the second digit of the
error code.
The error sequence described above is
repeated until the malfunction is repaired.
Code Description
2 Malfunction of condensate drain pump or condensate drain system
3 Malfunction of indoor unit air sensor TA
4 Malfunction of indoor unit heat exchanger sensor TC
10 Malfunction of indoor unit software (EEProm malfunction)
12 Malfunction of indoor unit software (Address/Zone error)
14 Loss of signal from CDU
15 Malfunction of indoor unit heat exchanger sensor TCJ
18 Malfunction of outdoor unit electrical panel (short-circuit protection G-Tr)
20 Malfunction of outdoor unit electrical panel (IPDU circuit for determining position of
compressor rotor)
21 Malfunction of outdoor unit electrical power sensor
22 Malfunction of outdoor unit heat exchanger sensor TE
23 Malfunction of compressor gas discharge probe for outdoor unit TD
24 Malfunction of outdoor unit fan motor
26 Other outdoor unit malfunctions (see LED outdoor unit control sheet)
27 Compressor rotation blocked
28 High temperature compressor discharge gas
29 Compressor malfunction
31 High temperature/pressure of outdoor unit heat exchanger
Table III: Operating limits
For diagnosis of malfunctions of the outdoor unit, refer to “installation manual ” 38VYX.
In the event of any malfunctioning, note down the error code, switch the appliance off,
disconnect from the mains electricity supply and contact a qualified after-sales centre.
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