Toshiba MiNi-SMMS MCY-MAP0501HT Service Manual page 127

Check code Check code name
[E08] / [96] Duplicated indoor addresses
(TCC-L / AI-NET)
Auxiliary code: Duplicated indoor address
Using a main remote controller (RBC-AMT31E), check the setup item codes (DN code) 12, 13, and 14.
When there is no address duplication, check to the following flowchart.
NO
Is cable connection to
communication line normal?
YES
YES
Is communication line connected
to the different outdoor unit?
NO
NO
Is indoor unit quantity connected
to outdoor unit correct?
YES
Set up indoor address again.
Check code Check code name
[E09] / [99] Duplicated master
remote controller
(TCC-L / AI-NET)
YES
Are two remote controllers set up
as two master remote controllers?
NO
Check code Check code name
[E10] / [CF] Communication error
in indoor P.C. board assembly
(TCC-L / AI-NET)
YES
Is there any fault on power line?
NO
Cause of operation
Indoor addresses are duplicated.
Correct cable connection.
Correct communication line.
Cause of operation
Setup of master remote controller is dupli-
cated.
Correct setup of remote controllers one as a master,
and the other as side remote controller
(remote controller address connector).
®
Check remote controller P.C. board.
Failure Replace
Cause of operation
Indoor P.C. board error failure
Check power voltage on line.
Eliminate noise, etc.
®
Check indoor control P.C. board.
Failure Replace
Check code Check code name
[E12] / [42] Automatic address start error
(TCC-L / AI-NET)
Auxiliary code: 01: Communication between indoor and outdoor 02: Communication between outdoor units
NO
Are U1, U2, U3, and U4
connectors connected?
YES
Disconnect relay connector Turn on power of
outdoor unit again.
of U1, U2, U3, and U4.
Check code Check code name
[E15] / [42] No corresponding indoor unit
during automatic address
(TCC-L / AI-NET)
NO
Is communication line between
indoor and outdoor normal?
YES
NO
Is connection of CN40 connector
on indoor P.C. board correct?
YES
Is connection of CN01 NO
connector on I/F P.C. board of
header outdoor unit correct?
YES
YES
Is there any connection
error of power cable?
NO
YES
Did a power failure occur?
NO
YES
Is there a noise source?
NO
Set up address again
after resetting power supply.
Cause of operation
1. When indoor automatic address started,
other refrigerant circuit system was setting
automatic address. (Sub code : 01)
2. When outdoor automatic address started,
the indoor automatic address was being
set. (Sub-code: 02)
Set up address again.
(Refer to "Address setup procedure".)
Cause of operation
1. Communication line connection error
between indoor and outdoor.
2. Indoor power system error
3. Noise from surrounding devices
4. Power failure
5. Indoor P.C. board error
Correct communication line.
Correct connection.
Correct connection.
Correct power cable.
Set up address again after
resetting power supply.
Eliminate noise.