25 English
Remote controller indications at check operation (for
BRC1A52)
A.Before check operation
After check operation
*1 Regardless of previous settings, it always indicates for cooling
operation after a check operation.
*2 Indication of “ ” may occasionally blinks, light-on, or light-
off, which depends on the setting of cooling/heating switch on the
remote controller.
Please see the instruction manual of indoor unit for the details.
1 pilot lamp (light-off)
B.Error Codes (defect indications)
(Note) Error codes shown here are examples and only for a reference.
(1) Before check operation
(2) During check operation
1 2 3 5 6 7 blinking
4 8 pilot lamp (blinking)
Repair the defect part according to the list on [Remote controller dis-
plays malfunction code]
C.Indications at check operation
1 pilot lamp (light-on)
D.Indications at check operation
(For when re-charging from the refrigerant tank is required. (Com-
pressor is not operated.))
1 2 blinking
3 pilot lamp (light-on)
* These codes appear on the error display, but do not indicate
actual errors.
These codes indicate directions for the refrigerant re-charging
process.
Actual codes displayed depend on the remote control and
optional accessories used. For details, refer to "Remote control-
ler displays malfunction code".
[Remote controller displays malfunction code]
If any malfunction codes other than the above are displayed, check
the service manual for how to respond.
All indications are lighted-on.
All other indications are lighted-on.
All other indications are lighted-on.
All other indications are lighted-on.
All other indications are lighted-on.
*Error code
indicated at
Procedures to be taken
P8
Connect the refrigerant tank.
PA
The refrigerant tank is empty or the refrigerant tank
valve is not open.
• If the refrigerant tank is empty, replace it, and hold
down the “TEST” button (BS4) for at least 5 sec-
onds to re-start the unit.
• If the refrigerant tank valve is not open, hold down
the “TEST” button (BS4) for at least 5 seconds to
re-start the unit.
After re-starting the unit, follow the instructions in
procedure (3) 2 to open the refrigerant tank valve.
Normal Indications
˚C
*1
*2
1
UNIT No.
˚C
1
2
3
4
UNIT No.
TEST
5
6 7
8
TEST
1
TEST
UNIT No.
1
2
3
Malfunction
code
Installation error Remedial action
A*
C*
(Note)
Indoor unit of connect-
ing remote controller is
malfunction.
Correct the malfunction by refer-
ence to installation manual of
indoor unit or operation manual
of outdoor unit.
E3, F4
F3, UF
The shutoff valve of the
outdoor unit is left closed.
Open the shutoff valve.
U1
The phases of the
power to the outdoor
unit are reversed.
Exchange two of the three
phases (L1, L2, L3) and connect
with the correct phase.
U3
Check operation has
been completed normally.
Perform the check operation
again.
U1
U4
LC
Power is not being sup-
plied (including cases of
open phase) to the out-
door or BS or indoor unit.
Supply power correctly to the
outdoor, BS or indoor unit.
U7
UA
A model which cannot be
connected in a multi-out-
door-unit system has been
connected in a multi-out-
door-unit system.
Change to individual piping, and
disconnect the wiring from the
multi-outdoor-unit terminals (Q1,
Q2)
U9
There is a problem with
another BS and indoor
unit within the same
system.
A malfunction code is displayed on
the remote controller, or else trou-
ble has occurred at BS and indoor
unit where a malfunction code is
not displayed on the remote con-
troller. Correct the trouble at the
corresponding BS and indoor unit.
If no malfunction code is displayed
on the remote controller, press the
Inspection/Test button on the
remote controller to display the
malfunction code.
UF
Wrong wiring between
units.
Agree refrigerant system and con-
nection wire between the units.
UF
If an outdoor - outdoor
transmission wire was con-
nected or disconnected
during check operation.
Complete the transmission wiring
work, then perform check opera-
tion again.
U4, U7
UH, UF
Wrong wiring between
units.
Connect the interunit wiring
(indoor - outdoor, outdoor - out-
door, multi-outdoor-unit).
If voltage of 100V or higher was
applied to the outdoor unit PCB
(A1P), the outdoor unit PCB or
BS unit PCB may be damaged. If
the malfunction display "UH"
appears even after the connec-
tion was corrected, the PCB must
be replaced. Refer to Service
Manual for details.
PJ
DIP switch (DS1) setting
is incorrect after the out-
door unit PCB (A1P)
was replaced.
Follow the information on spare
parts with a spare PCB of out-
door unit and make the correct
setting.
P2
Check operation cannot
be continued by the low
pressure drops.
Check the following.
• All shutoff valves are open.
• Refrigerant tank is connected.
• Valve of refrigerant tank is open.
• Inlet or outlet of indoor unit are not
closed due to a foreign object.
P8
PA
Instruction to perform addi-
tional refrigerant charging
during check operation
(not a malfunction).
Make the check operation by "11-
2 Procedure of check opera-
tion".
01_EN_3P226891_9.fm Page 25 Tuesday, December 1, 2009 4:38 PM
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