Toshiba RAV-SM1603AT-E Service Manual page 98

[L09 error]
Is not yet capacity setting
of indoor unit set up?
NO
Check indoor P .C. board.
Defect → Replace
[L20 error]
Are wiring connections
to communication lines
X and Y normal?
YES
Is the central controller
[98] displayed?
YES
Is the indoor remote controller
[L20] displayed?
YES
Is not the multiple same central
control system addresses connected?
NO
Check central controller
(including network adapter).
Defect → Replace
[L30 error]
Are outside devices of
connector CN80 connected?
YES
Do outside devices normally work?
YES
Check cause of operation.
YES
NO
NO
YES
NO
NO
– 98 –
Set capacity data of indoor unit.
(Setup item code (DN)=11)
Correct wiring connection.
Check indoor P .C. board.
Defect → Replace
Correct central control system address.
Check indoor P .C. board.
Defect → Replace
Check outside devices.
Defect → Replace