[L07]
Ye
s
Ye
s
No
No
Check code
Cause
A
group line is connected to an individual indoor unit.
Check code name
A
group line exists in an individual
indoor unit
Is there group cabling?
There is individual indoor
unit.
Check the addresses of setup
item code DN 12, 13, and 14.
Correct indoor group address.
Replace indoor I/F P.C. board.
[L03]
Check code
1)
Check whether the connection on remote controllers (group and/or individual) has been changed since the
group configuration and address checking on the remote controllers finished.
2)
If the group configuration and address are normal when power has been turned on, the mode automatically
shifts to address setup mode. For setting up addresses again, refer to "Address setup".
Check code name
Duplicated indoor header units
Cause
There are two or more indoor header units in a group
during group control.
[L08]
Ye
s
No
Check code
Cause
Indoor unit address is unset
Check code name
Indoor group / address unset
Are powers of all the
indoor units turned on?
T
urn on the power of indoor units.
T
urn on the power of outdoor
unit again.
Re-execute address setup.
(Refer to "Address setup".)
Clear addresses.
(Refer to "Address clear".)
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)
No
[L20]
Ye
s
Check code
Cause
Central control addresses are duplicated.
Check code name
Duplicated central control
addresses
Are not two
or more central
control devices which have
same network address
connected?
Check the network adapter
on the indoor P.C. board.
Correct the network address of
the central control system.
Yes
No
[L09]
Check code
Cause
Indoor unit's capacity is unset
Check code name
Indoor capacity unset
Are capacity setups of
indoor units set?
Set up capacity data of indoor unit.
(Setup CODE No. (DN) = 1
1)
Replace indoor P
.C. board.
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