Hitachi FSG Series Service Manual page 68

1
TROUBLESHOOTING
60
Alarm Code
dd
‘
This alarm code is indicated only when remote control switch PC-2H2 is used being connected to indoor
unit.
‘
This alarm occurs in the case of incorrect connection like that TL terminal is connected to Vc terminal as
below when indoor units are wired.
Remote Control
Switch (yellow)
The unit No. and unit code are as
below regardless of the indoor unit.
Unit No.
Cycle System
E00
Unit Code
Is wiring among indoor units
right?
Yes
Turn off the main powerswitch
and cut the wire JP4 at remote
control switch, then turn on the
main power switch again.
Phenomenon
Wiring Trouble
Incorrect Wiring Among Indoor Units
(Blue) (yellow)
Remote
Control
Switch
00
00
No
Cause
Incorrect Wiring
(Blue) (yellow)
Incorrect
Wiring
Check Item
Check the wiring No.
Repair the wiring among
indoor units.
Action
(Turn OFF main switch)
Repair the wiring