Diagnostic Procedure For Each Check Code (Indoor Unit) - Toshiba RAV-RM561FT-EN Service Manual

6-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code
[E01 trouble]
Is inter-unit wires of A and B normal?
Is the connector on the
harness or the harness from terminal block of
indoor unit connected correctly?
No
Is group control operation?
Is power of all indoor units turned on?
Is power supplied to remote controller?
AB terminal: Approx. DC18V
Is one of two remote controllers
set as a header unit?
[E09 trouble]
Is one of two remote controllers
set as a header unit?
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
– 54 –
No
Check power connection of indoor unit.
No
Replace indoor P.C. board (MCC-1643).
Correct a header unit/a follower unit.
(Remote controller address connector)
Replace remote controller P.C. board.
Replace remote controller P.C. board.
Correct inter-unit wires
of remote controller
Correct connection of connector.
Check circuit wiring.
(Turn on power again.)
Correct as a header unit
and a follower unit.