Hitachi RAS-2-HVNP Service Manual page 185

7. Test run
Remote control switch
indication
The operation lamp
flickers. (1 time/1 sec.)
The unit does not start.
and the unit number and
alarm code 03 flicker.

The operation lamp flic-
The unit does not start.
kers. (1 time/2 sec.)
Indication of flicker ex- The unit does not start, or start once
cept above and then stops
The operation lamp
flickers. (1 Time/1s)
The unit does not start.
Unit number 00 , alarm
code dd and unit code
E00 flicker
Back to  after checking
Instructions for the recovery when the fuse of the transmission
circuit is blown out:
1
Correct the wiring to the terminal board.

2
Set pin 2 of DSW7 on the indoor units PCB to ON
Only for RPK-(0.8-1.5): set DSW7 on the indoor unit PCB
ON
171
SMGB0079 rev.0 - 01/2013
Unit condition
The power source of
outdoor unit in not turned
ON.
The connecting wires of
operating line are inco-
rrect or loosened.
Remote control cable is
broken.
Contact of connectors is
not good.
The connection of remote
control cable is incorrect
The connection of ther-
mistor or other connec-
tors are incorrect. Trip-
ping of protector exists,
or else.
The connection of the
remote control cable
between indoor units is
incorrect.
Except RPK(0.8/1.5)
Inspection points after power
Wrong portions
1
Connecting order of each ter-
minal boards.
2
Screw fastening of each termi-
nal boards.
N O T E
Recovering method of FUSE for
operating circuit. There is a fuse
(FUSE4 on indoor unit PCB1,
EF1 on outdoor unit PCB1) to
protect operating circuit on the
PCB, when the power lines are
connected to operating lines. If
fuse is melted, operating circuit
can be recovered once by set-
ting the dip switch on the PCB
as shown in
This is the same as item
and 2
Check by the abnormality mode
table in the Technical Catalogue
(Do it by service people).
Check by the abnormality mode
table in the Technical Catalog (Do
it by service people).
Only RPK-(0.8/1.5)
source OFF

 1
7
ON OFF