134
YES
YES
NO
NO
Correct the line address setup.
Correct the wire connection.
Are there duplicate line address setups?
Are communication wire connections of
[U1.U2], [U3.U4], and [U5, U6] normal?
Check outdoor I/F P.C. board.
Failure
®
Replace
Repeat the address setup.
(Refer to “Address setup”.)
Check code
[L04] / [96]
(TCC-L / AI-NET)
Check code name
Duplicated setup of outdoor line address
Cause of operation
Outdoor line addresses are duplicated.
Check code
[L05] / [96]
(TCC-L / AI-NET)
Check code name
Duplicated indoor units with priority
(Displayed on indoor unit with priority)
Cause of operation
1. Two or more prior indoor units exist.
This check code is displayed on the set indoor unit when setup of indoor unit with priority is duplicated.
• Priority setup with two or more units is not available. Choose one prior unit in one refrigerant circuit system.
Check code
[L06] / [96]
(TCC-L / AI-NET)
Check code name
Duplicated indoor units with priority
(Displayed on the indoor unit other than
one with priority and on the outdoor unit)
Cause of operation
Two or more indoor units with priority
are duplicated.
Auxiliary code: No. of indoor units with priority
When indoor unit with priority is duplicated, this fault code is displayed on the unit other than the setup indoor unit
and outdoor unit.
• As only one indoor unit with priority is valid, change the setup.
Is there group wiring?
Check indoor P.C. board.
Failure
®
Replace
Is there an individual indoor unit.
Correct indoor group address.
Check setup item code
DN 12, 13, and 14 addresses.
Item code (D1) 12: Line address
Item code (D2) 13: Indoor address
Item code (D3) 14: Group address
YES
YES
NO
NO
Check code
[L07] / [99]
(TCC-L / AI-NET)
Check code name
Group line in individual indoor unit
Cause of operation
The group line is connected in the
individual indoor unit.
Turn on the power of indoor units.
Turn on the power of outdoor unit again.
Is the power on all the
indoor units turned on?
Disconnect connectors between
[U1, U2] and [U3, U4].
Clear addresses.
(Refer to “Address clear”.)
Re-execute address setup.
(Refer to “Address setup”.)
YES
NO
Check code
[L08] / [99]*
(TCC-L / AI-NET)
Check code name
Indoor group / address unset
Cause of operation
Indoor address unset
Note) This code is displayed when the power is turned on at the first time after installation.
(Because the address is not yet set up)
Set up capacity data of indoor unit.
(Setup item code (DN) = 11)
Check indoor P.C. board.
Defect
Replace
Are capacity setups
of indoor units unset?
YES
NO
Check code
[L09] / [46]
(TCC-L / AI-NET)
Check code name
Indoor capacity unset
Cause of operation
Indoor capacity unset