129
Check code
[E20] / [42]
(TCC-L / AI-NET)
Check code name
Unit connected to other line
during automatic address
Cause of operation
When starting automatic indoor address, a
device in another refrigerant system is
connected.
Auxiliary code: 01: Connection of outdoor of another system 02: Connection of indoor unit of another system
Separate the wire between systems according to address setup method.
YES
YES
YES
YES
NO
NO
NO
NO
Replace P.C. board according to auxiliary code.
( )
( )
( )
( )
Correct connection of communication line.
Correct connection of communication line.
Correct connection of power supply line.
Correct connection of power supply line.
Are communication connectors between
I/F P.C. board and comp IPDU connected?
I/F P.C. board : CN600
Comp IPDU : CN06
Are communication connectors
between comp IPDU and fan IPDU connected?
Comp IPDU : CN22
Fan IPDU : CN804
Has the power supply connectors
connected comp IPDU and fan IPDU?
Comp IPDU : CN13
Fan IPDU : CN01
Check the voltage, AC 220–240V
Has the power supply connectors
connected fan IPDU and noise filter P.C. board?
Fan IPDU : CN02
Noise filter P.C. board : CN08
Check the voltage, AC 220–240V
Check code
[E31] / [CF]
(TCC-L / AI-NET)
Check code name
IPDU communication error
Cause of operation
1. Connection error of communication line
between IPDU and I/F P.C. board
2. I/F P.C. board error
3. IPDU P.C. board error
4. External noise
Auxiliary code :
01: Comp IPDU error
02: Fan 1 IPDU error
03: Comp + Fan 1 IPDU error
04: Fan 2 IPDU error
05: Comp + Fan 2 IPDU error
06: Fan 1 + Fan 2 IPDU error
07: All IPDU error or disconnection of communication line between IPDU-I/F P.C. board or outdoor I/F P.C. board error
Check code
[F01] / [0F]
(TCC-L / AI-NET)
Check code name
Indoor TCJ sensor error
Cause of operation
TCJ sensor Open/Short
YES
YES
NO
NO
Correct connection.
Replace TC1 sensor.
Is TC1 sensor connector (CN100: Brown)
on indoor P.C. board normally connected?
Are characteristics of TC1 sensor
resistance value normal?
*
Check indoor main P.C. board.
Defect
®
Replace
*
Indoor unit temperature sensor characteristics
See Characteristics-2.
Check code
[F03] / [93]
(TCC-L / AI-NET)
Check code name
Indoor TC1 sensor error
Cause of operation
TC1 sensor Open/Short
Check code
[F02] / [0d]
(TCC-L / AI-NET)
Check code name
Indoor TC2 sensor error
Cause of operation
TC2 sensor Open/Short
YES
YES
NO
NO
Correct connection.
Replace TCJ sensor.
Is TCJ sensor connector (CN102: Red)
on indoor P.C. board normally connected?
Are characteristics of TCJ sensor
resistance value normal?
∗
Check indoor main P.C. board.
Defect
®
Replace
*
Indoor unit temperature sensor characteristics
See Characteristics-2.
Correct connection.
Replace TC2 sensor.
Is TC2 sensor connector (CN101: Black)
on indoor P.C. board normally connected?
Are characteristics of TC2 sensor
resistance value normal?
*
Check indoor main P.C. board.
Defect
®
Replace
YES
YES
NO
NO
*
Indoor unit temperature sensor characteristics
See Characteristics-2.