Hitachi SAMURAI Series Service Manual page 119

4. Troubleshooting
Troubleshooting by alarm code
C1-39
Alarm code
Alarm stop reason
Current sensor indicates an abnormal value (CT).
PCB monitoring position
PCBd (I/O PCB) CN36 (Current sensor (CT))
The connection and insertion of connector
CN36 on PCBd (I/O PCB) is correct
The connection and insertion of the
connector of current sensor on the body of the
The power wiring of compressor passes
through the current sensor
There are no changes to the characteristics
of the current sensor (The characteristics of the
current sensor differ in standard specification and
special voltage specification)
C1-03
Alarm code
Alarm stop reason
Transmission is not performed correctly inside I/O PCB (PCBd).
PCB monitoring position
PCBd (I/O PCB) Main microcomputer ~ Sub microcomputer
The connection and insertion of connector
CN38~240 and CN55~57 on PCBd (I/O PCB)
112
SMGB0097 rev.0 - 07/2015
Current sensor abnormality (CN36)
Yes
unit are correct
Yes
Yes
Yes
I/O internal transmission
are correct
Yes
No
Revision of connections
No
Revision of connections
No
Check of current sensor
No
specifications. Check of
Replacement of current
No
Revision of wiring
DIP switches
sensor
Revision of connections
Replace PCBd (I/O PCB)