Hitachi RAS-(3-6)HVNC1(E) Service Manual page 209

7 Test run
Remote control switch
indication
The operation lamp
flickers. (1 time/1 sec.)
and the unit number and
alarm code 03 flicker.

The operation lamp flic-
kers. (1 time/2 sec.)
Indication of flicker ex-
cept above
The operation lamp
flickers. (1 Time/1s)
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
(DSW7 not available in RPC-FSN3 indoor unit models)
195
SMGB0087 rev.0 - 12/2013
Unit condition
The unit does not start.
The unit does not start.
The unit does not start, or start once
and then stops
The unit does not start.
Inspection points after power
Wrong portions
1
2
The power source of
outdoor unit in not turned
ON.
Recovering method of FUSE for
operating circuit. There is a fuse
The connecting wires of
(FUSE4 on indoor unit PCB1, EF1
operating line are inco-
on outdoor unit PCB1) to protect
rrect or loosened.
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 setting the dip switch on
the PCB as shown in
Remote control cable is
broken.
Contact of connectors is
This is the same as item
not good.
and 2
The connection of remote
control cable is incorrect
The connection of ther-
mistor or other connec- Check by the abnormality mode
tors are incorrect. Trip- table in the Technical Catalogue
ping of protector exists, (Do it by service people).
or else.
The connection of the
Check by the abnormality mode
remote control cable
table in the Technical Catalog (Do
between indoor units is
it by service people).
incorrect.
source OFF
Connecting order of each ter-
minal boards.
Screw fastening of each termi-
nal boards.
N O T E

 1
7