No
Ye
s
[L20]
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?
Correct the network address
of the central control system.
Check the network adaptor on the
indoor P
.C. board.
[L08]
Ye
s
No
No
Ye
s
[L09]
[L10]
Check code
Check code
Cause
Check code
I/F P
.C. board
A'ssy service for the outdoor unit is common to this series.
A
setup for model selection dif
ferent
from that for P
.C. board with trouble is necessary
. Set up a model based upon the P
.C. board
A'ssy exchange
procedure.
Cause
Indoor unit address is unset
Check code name
Indoor group / address unset
Cause
Indoor unit's capacity is unset
Check code name
Indoor capacity unset
On the outdoor IF P
.C. board for service, the model
selecting jumper has not been set up so as to match
with the model.
Check code name
Outdoor capacity unset
Are powers of all the
indoor units turned on?
Are capacity setups of
indoor units unset?
T
urn on the power of indoor units.
T
urn on the power of outdoor
unit again.
Set up capacity data of indoor unit.
(Setup CODE No. (DN) = 1
1)
Check indoor P
.C. board.
Failure
Replace
Re-execute address setup.
(Refer to "Address setup".)
Disconnect connectors
between [U1, U2] and [U3, U4].
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)
[L
23
]
Check code
Cause
Bit 3 and 4 of SW17 are turning on.
Check code name
SW setting mistake
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