Toshiba RAV-GM901KRTP Series Service Manual page 54

[E18 error]
Are wired remote controller
inter-unit cable of A and B normal?
Is there no disconnection or
contact error of connector on harness
from terminal block of indoor unit?
Is indoor unit switch SW02 setting corrent?
NO
Is group control operation?
Is power of all indoor units turned on?
Is there no contact error
of indoor/outdoor inter-unit cable
(Signal line) of the main unit?
[E08, L03, L07, L08 error]
E08: Duplicated indoor unit No.
L03: There are 2 or more master units in a group control.
L07: There is 1 or more group address [Individual] in a group control.
L08: The indoor group address is unset. (11. ADDRESS SETUP)
If the above error is detected when power supply turned on, the mode enters automatically in the automatic
address set mode. (Check code is not output.)
However, if the above error is detected during the automatic address set mode, a check code may be
output.
[L09 error]
Is not yet capacity setting
of indoor unit set up?
NO
YES
NO
Bit 1: OFF
Bit 2: OFF
YES
YES
YES
NO
YES
NO
YES
Correct connection of connector.
NO
Correct switch setting on
NO
connection status of indoor unit
YES
Correct indoor/outdoor inter-unit cable
Set capacity data of indoor unit.
(Setup CODE No. (DN)=11)
Check indoor P.C. board (MCC-1696).
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Correct inter-unit cable
of remote controller.
Check circuit wiring.
MCC-1696 P.C. board.
Check power
(Connect again).
(Serial signal line).
Check indoor P.C. board
(MCC-1696).
Defect → Replace
Defect → Replace