Toshiba RAV-SM802UT-E User Manual

– 85 –

Is 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 group control operation?

Is power of all indoor units turned on?

Is power supplied to remote controller?

AB terminal: Approx. DC18V

Are two remote controllers

set without master unit?

Are two remote controllers

set without master unit?

Correct inter-unit cable of remote controller.

Correct connection of connector.
Check circuit cables.

Check power connection of indoor unit. 
(Turn on power again.)

Check indoor P.C. board (MCC-1402).
Defect 

 Replace

Correct as a master unit/a sub unit
(Remote controller address connector)

Check remote controller P.C. board.
Defect 

 Replace

Correct as a master unit/a sub unit
(Remote controller address connector)

Check remote controller P.C. board.
Defect 

 Replace

NO

YES

NO

NO

NO

YES

YES

YES

NO

YES

YES

YES

NO

NO