Troubleshooting Procedure For Each Check Code - Toshiba RAV-SM1100UT-E Service Manual

8-4. Troubleshooting Procedure for Each Check Code

8-4-1. New Check Code/Present Check Code (Central Control Side)
[E01 error]/ [99 error]
*
* : When central controller [99] is displayed, there are other causes of error.
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?
NO
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?
[E09 error]/ [99 error]
*
* : When central controller [99] is displayed, there are other causes of error.
Are two remote controllers
set without master unit?
NO
YES
YES
NO
YES
NO
YES
NO
YES
YES
NO
YES
NO
Correct inter-unit cable of remote controller.
Check power connection of indoor unit.
(Turn on power again.)
Check indoor P.C. board (MCC-1402).
Defect
Correct as a master unit/a sub unit
(Remote controller address connector)
Check remote controller P.C. board.
Defect
Correct as a master unit/a sub unit
(Remote controller address connector)
Check remote controller P.C. board.
Defect
– 35 –
Correct connection of connector.
Check circuit cables.
Replace
Replace
Replace