Toshiba RAV-SM454SDT-E Diagnostic Procedure for Each Check Code Indoor Unit, Check code E01 error

10-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code [E01 error]

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact error of connector on harness from terminal block of indoor unit?

NO

NO

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

Are 2 remote controllers set

without master unit?

NO

NO

YES

NO

NO

YES

Correct inter-unit cable

of remote controller

Correct connection of connector.

Check circuit wiring.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1570).

Defect → Replace

Correct a master unit/a follower unit. (Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

[E09 error]

Are 2 master units set in	YES
2 remote controllers?
NO

Correct as a master unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

– 82 –