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PMGB0126A rev.2 - 11/2006
TEST RUNNING
15.2. TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH
Turn ON the power source of the Indoor and Outdoor Units
Set the TEST RUN mode by remote control switch.
Depress the “MODE” and the “CHECK” switches simultaneously for more 
than 3 seconds.
-  If “TEST RUN” and the counting number of the connected units to the 
remote control switch (for example “”) are indicated on the remote 
control switch, the connection of remote control cable is correct.
Go to 
-  If no indication or “
” appear or the number of the units indicated is 
smaller than the actual number of the units, some abnormalities exist.
Go to 
Remote Control 
Switch Indication
Fault Inspection Points after Power Source OFF
No indication
The power source is not turned ON.
The connection of the remote control cable is 
incorrect.
The connecting wires of power supply line are 
incorrect or loosened.
-
-
-
1.  Connecting Points of Remote Control Cable terminal board of 
Remote Control switch and indoor unit.
2.  Contact of Terminals of Remote Control Cable
3.  Connection Order of each Terminal Board
4.  Screw Fastening of each Terminal Boards.
Counting number 
of connected units 
is incorrect
The setting of unit number is incorrect
The connection of control cables between each indoor 
units are incorrect. (When one remote control switch 
controls multiple units)
-
-
5.  Dip Switch Setting on Printed Circuit Board
6.  Connecting on the Terminal Board
7.  This is the same as item 
 1, 2 , and 3.
Back to  after checking
Select TEST RUN MODE by depressing MODE Switch (COOL OR HEAT)
Depress RUN/STOP switch.
The “TEST RUN” operation will be started. (The “TEST RUN” operation will 
be fi nished after 2 hours unit operation or by depressing the RUN/STOP 
switch again).
If the unit do not start or the operation lamp on the remote control switch is 
fl ickered, some abnormalities exist. 
Go to 
Remote Control Switch 
Indication
Unit Condition Fault
Inspection Points after Power 
Source OFF
The operation lamp 
fl ickers. (1 time/1 sec.) 
And the Unit No. and 
Alarm Code “03” fl icker
The unit does not start.
The connecting wires of 
operating line are incorrect 
or loosened.
Connecting Order of each 
Terminal Board. The fuse on 
PCB may be blown out due to 
miswiring (see )
Screw fastening of each Terminal 
Boards.
Connecting Order of Power 
Line Between Indoor Units and 
Outdoor Unit.
-
-
-
The operation lamp 
fl ickers. (1 time/2 sec.)
The unit does not start.
The connection of remote 
control cable is incorrect
This is the same as item  1, 2, 
and 3
Indication of clicker 
different to above
The unit does not start, or start once and then 
stops
The connection of 
thermistor or other 
connectors are incorrect. 
Tripping of protector exists, 
or else.
Check by the alarm code table in 
chapter in the Technical Catalogue. 
(Do it by service people).
Back to  after checking
Procedure for Recovery When Transmitting Circuit Fuse is Blown Out:
1. Correct the wiring for the terminal board.
2.  Apply the process indicated beside.
Indoor PCB DSW7
Switch on the 1
st
 pin
Operation lamp
Counting 
number of 
connected 
units
MODE
RUN/STOP