29
8. Failure code
1. Conrm that the cover of the electrical cabinet of the connection kit is of good sealing.
2. Conduct commissioning in accordance with the installation and use specication attached to the outdoor unit.
At the time of energization, because electronic expansion valve will start initialization (open/ close), there may be
click lasting for about 20s, which is normal.
3. When the connection kit failure, the connection kit trouble light LED5 will icker periodically, you can according
the icker times to check the failure reason. See the below table.
Connection kit failure code list
Failure code
at wired
controller
PCB LED5
(connection kit)
Fault Descriptions
01 1 Fault of connection kit ambient temp. transducer TA
02 2 Fault of connection kit pipe temp. transducer TC1
03 3 Fault of connection kit pipe temp. transducer TC2
05 5 Fault of connection kit EEPROM
06 6 Fault of communication between connection kit & outdoor units
07 7 Fault of communication between connection kit and wired control
08 8 Fault of connection kit water drainage
09 9 Fault of duplicate connection kit address
Outdoor Unit
Code
20 Corresponding faults of outdoor units
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