Toshiba RAV-SM304MUT-E Service Manual page 54

[E18 error]
Is inter-unit cable
of A and B normal?
Is there no disconnection
or contact error of connector
on harness from terminal block
NO
Is group control operation?
Is power of all indoor units turned on?
NO
Is connection twin-triple connection?
Is there no contact error
of indoor/outdoor inter-unit wire
[E08, L03, L07, L08 error]
E08: Duplicated indoor unit No.
L03: There are 2 or more header 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. (99)
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
AMP Air Conditioning
YES
of indoor unit?
NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
Correct indoor/outdoor inter-unit wire
Check indoor P.C. board (MCC-1402).
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Correct inter-unit cable
of remote controller.
Correct connection of connector.
Check circuit wiring.
Check power
connection status of indoor unit
(Connect again).
(Serial signal line).
Check indoor P.C. board
(MCC-1402).
Defect → Replace
Set capacity data of indoor unit.
(Setup CODE No. (DN)=11)
Defect → Replace