7  Test run
247
7
SMGB0077 rev.0 - 01/2013
6  Check the indication on the remote control:
Indication on the remote 
control
Unit status Fault
Inspection points after swit-
ching off the power supply
The on/off LED ickers (once a 
second), along with the unit no. 
and alarm code 03.
The unit does not start.
The operating line connection 
wires are incorrect or loose.
a.  Connection  order  of 
each  terminal  board. 
The fuse on the  PCB  is 
likely to have been disa-
bled  during  a  incorrect 
wiring.  The  fuse  can 
only  be  recovered  once 
using  the  DSW  on  the 
PCB. Go to point 7.
b.  Adjustment  of  the 
screws on each terminal 
board.
c.  Connection  order of  the 
power  supply  cables 
between  the  indoor  and 
outdoor units.
The on/off LED ickers (once 
every 2 seconds).
The unit does not start.
The remote control cable con-
nection is incorrect.
As in point 3 A, B and C
The ickering display is diffe-
rent to that indicated above.
The unit does not start. The unit 
starts and then stops.
The thermistor connection 
or that of other connectors is 
incorrect. The trip switch is 
triggered.
Use the alarm code table in the 
service manual to check this 
(service personnel are respon-
sible for this check).
The on/off LED ickers (once 
every sec.). And the unit num-
ber 00, the alarm code dd and 
unit code E.00 icker.
The unit does not start.
The remote control cable con-
nection between the indoor 
units is correct
See the fault table in the tech-
nical catalogue (this must be 
performed by technical per-
sonnel).
Go back to point 1 after the check.
7  Instructions for recovery when the transmission circuit fuse is disabled
a.  Correct the terminal board wiring.
b.  Enable the 1st pin on DSW7 of the indoor unit PCB. 
7.2.2  PC-ARF remote control
(1) Turn ON the power supply for all the indoor units.
(2)  For the models  with the auto-address function, wait for 3 minutes approximately. The  addressing is automatically 
performed. (There is a  case  that  5 minutes  is  required  according to the  setting condition.) After  that, select using 
language from “Menu”. Refer to the operation manual for details.
(3) Press and hold “
” (menu) and “ ” (return) simultaneously for at least 3 seconds.
Test run screen
a. 
The test run menu will be displayed.
ADJ
/
OK
Test Run Menu
  Test Run
  Function Selection
  Thermistor Selection
  Input/Output
  Function 5
01
03
ENT. RTN.SEL.