Indoor Group / Address Unset; Indoor Capacity Unset - Toshiba Super MMU-AP0091H Service Manual

Check code name
[L08] / [99]*
(d07 / AI-NET)
Are powers of all the
indoor units turned on?
YES
Disconnect connectors between
[U1, U2] and [U3, U4].
Clear addresses.
(Refer to "Address clear".)
Re-execute address setup.
(Refer to "Address setup".)
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)
Check code name
[L09] / [46]
(d07 / AI-NET)
Are capacity setups
of indoor units unset?
NO
Check code name

Indoor group / address unset

NO
Check code name

Indoor capacity unset

YES
184
Cause of operation
Indoor address unset
Turn on the power of indoor units.
Turn on the power of outdoor unit again.
Cause of operation
Indoor capacity unset
Set up capacity data of indoor unit.
(Setup item code (DN) = 11)
Check indoor P.C. board.
Defect Replace