Toshiba MMK-AP0072H Service Manual page 88

Check code name
[L03] / [96]
(Current code / AI-NET)
1) Check the connection changing of the remote controller after the connection has been changed.
2) If the group configuration and address are normal when power has been turned on, the mode automatically shifts
to address setup mode. (Re-setup of address) → Refer to "Address setup".
Check code name
[L04] / [96]
(Current code / AI-NET)
Is there duplicated line address setup?
NO
Are communication cable connections of
[U1.U2], [U3.U4], and [U5, U6] normal?
YES
Check outdoor I/F P.C. board.
Failure Replace
Check code name
[L05] / [96]
(Current code / AI-NET)
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 name
Duplicated indoor header units
Check code name
Duplicated setup of outdoor line address
YES
NO
Check code name
Duplicated indoor units with priority
(Displayed on indoor unit with priority)
There were two or more indoor header
units in some remote controller group
control.
Outdoor line addresses are duplicated.
1. Two or more prior indoor units exist.
88
FILE NO. SVM-05052
Cause of operation
Cause of operation
Correct the line address setup.
Correct the cable connection.
Re-set up the address.
(Refer to "Address setup".)
Cause of operation