Toshiba MMK-AP0073HP1-E1 Service Manual page 131

Check code
[L30] / [b6]
(Current code / AI-NET)
Is outside device connected
to connector CN80?
YES
Does outside device correctly operate?
YES
Check cause of the operation.
Check code
[L31] / [–]
(Current code / AI-NET)
Is there any trouble of
outdoor unit power supply?
NO
Check outdoor I/F P.C. board.
Check code name
Interlock in indoor unit
from outside
NO
NO
Check code name
Extended IC error
YES
131
FILE NO. SVM-16046
Cause of operation
Outside error was input.
Check indoor P.C. board.
Failure → Replace
Check outside device.
Failure → Replace
Cause of operation
1. Outdoor unit power error
2. Outdoor I/F P.C. board error
Check power voltage and line.
Check auxiliaty noise, etc.