Toshiba RAV-SM1403DT-A, RAV-SM1603DT-A E18 error, E08, L03, L07, L08 error, L09 error, 75

[E18 error]

Is inter-unit cable		NO
of A and B normal?
	YES

Is there no disconnection

or contact error of connector YES on harness from terminal block

of indoor unit?

NO
NO
Is group control operation?
YES
Is power of all indoor units turned on?	NO
YES
NO
Is Twin or Triple control?
YES
Is there no contact error	YES
of indoor/outdoor inter-unit cable
(Signal line) of the main unit?
NO

Correct inter-unit cable

of remote controller.

Correct connection of connector.

Check circuit wiring.

Check power

connection status of indoor unit

(Connect again).

Correct indoor/outdoor inter-unit cable

(Serial signal line).

Check indoor P.C. board

(MCC-1403).

Defect → Replace

[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. (13. 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		YES
of indoor unit set up?
	NO

Set capacity data of indoor unit.

(Setup item code (DN)=11)

Check indoor P.C. board (MCC-1403).

Defect → Replace

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