Samsung AQV12ACME User manual

SERVIC
AIR CONDITIONER
ROOM AIR CONDITIONER
INDOOR UNIT
AQV12ACME
AQV12ADME
AQV12BCME
AQV12BDME
SH12VAC
SH12VAD
AQVOSACME
AQVO9ADME
AQVO9BCME
AQVO09BDME
SHOSVAC
SHOSVAD
OUTDOOR UNIT
UOV12ACME
UOV12ADME
UOV1Z2BCME
UOQV12BDME
SH12VACX
SH12VADX
UQVOSACME
UQVOSADME
UOVOSBCME
UOVO9SBDME
SHOSVACX
SHOSVADX
Manual
. CONTENTS
1. Precautions
2. Product Specifications
3. Operating Instructions and
Installation
4, Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views and Parts List
7. PCB Diagrams |
8. Wiring Diagrams

1.
10.
Precautions
Warning: Prior to repair, disconnect the
power cord from the circuit breaker.
Use proper parts: Use only exact replace-
ment parts. (Also, we recommend replacing
parts rather than repairing them.)
Use the proper tools: Use the proper tools
and test equipment, and know how to use
them. Using defective tools or test equip-
ment may cause problems later-intermittent
contact, for example.
Power Cord: Prior to repair, check the
power cord and replace it if necessary.
Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.
After completing repairs and reassembly,
check the insulation resistance.
Procedure: Prior to applying power,
measure the resistance between the power
cord and the ground terminal. The resis-
tance must be greater than 30 megaohms.
Make sure that the grounds are adequate.
Make sure that the installation conditions
are satisfactory.
Relocate the unit if necessary.
Keep children away from the unit while it is
being repaired.
Be sure to clean the unit and its surround-
ing area.
Fig. 1-4 Clean the Unit
Samsung Electronics
i=]

2-2 Dimensions
2-2-1 Indoor Unit
SSS
(Front view)
245
165
Air out
(Remote control)
‘@
S
1d
S| has
&.
ci)
©
22
}—|
ee ares
2-2 Samsung Electronics

Product Specifications
2-2-2 Outdoor Uni
2-3
(Rear view)
9S¢
ok
LAE
600
(Front view)
Samsung Electronics

2-3 Refrigerating Cycle Block Diagram
INDOOR UNIT OUTDOOR UNIT
:
|
Capillary
tube
|
qT
<
2-way
val
l
!
y
valve
«+
;
Heat
o
|
Heat
o
exchanger
5!
exchanger
o
!
|
(Evaporator)
6
—_
(Condenser)
ey
|
e
c
1
4-way
valve
|
_
~—
Cooling
Compressor
aoe
eeoung
|
~<i%}= Gas leak check point:
i
ee
2-4
Samsung
Electronics

3.
Operating
Instructions
and
Installation
3-1 Operating Instructions
3-1-1
Name
&
Function
of
Key
in
remote
controller
FEATURE OF KEY
Ys g
eases
GAS (UP)
Power
On/Off
button
to
start
and
stop
airconditioner
or
timer
set
up.
Temp.
up
button.
To
increase
the
temperature
by
the
pressing
.
the temperature button.
Temp.
down
button.
To
decrease
the
temperature
by
the
pressing
Yy/
(DOWN)
the
temperature
button.
Each time
you
press
this
button,
(ate:
Auto
Mode
c&
:
Fan
Only
MODE
is
changed
in
the
following
order.
‘
Mode)
el
saa
a
a
%
:CoolMode
%
:
Heat
Mode
frto > % > Fh >
we
7?
O"*
]
&
-:
Dry
Mode
Press
until
the
appearance.
the
air
conditioner
cools
or
heats
the
room
as
quickly
as
possible.
After
30minutes,
the
airconditioner
is
reset
automatically
to
the
previous
mode.
Press
€
until
the
appearance.
the
sleep
timer
can
be
used
when
you
are
cooling
or
heating
your
room
to
switch
the
air
conditioner
off
automatically
after
a
period
of
six
hours.
Each time you press this button,
FAN
SPEED
is
changed
in
the
following
order.
S. > a Sal > ‘hal 4
«az
Adjust air flow vertically.
The
ON
Timer
enables
you
to
switch
on
the
air
conditioner
automatically
after
a
given
period
of
time
that
is
from
30
minutes
to
24
hours.
To
cancel,
press
the
8)
(Set/Cancel)
button.
The
Off
Timer
enables
you
to
switch
off
the
air
conditioner
automatically
after
a
given
period
of
time
that
is
from
30
minutes
to
24
hours.
To
cancel,
press
the
€)(Set/Cancel)
button.
To
select
the
5
way
function
with
the
remote
control,
press
the
(5
way)
button
one
or
more
times
until
the
desired
mode
is
selected.
Each
time
you
press
the
(5
way)
button,
each
5
way
indicator
on
the
indoor
unit
lights
up in order.
@>O©2O7>O@?®
Samsung
Electronics
3-1

Operating Instructions and Installation
3-1-2 Name & Function
1. AUTO CHANGEOVER FUNCTION :
*To operate in the “Auto change over” mode,
set the MODE on “AUTO”.
*According to the outdoor and indoor temper-
atures while starting the operation, one of the
modes from the cooling, dehumidifying and
heating is selected automatically to operate.
*The operation mode shall be set again if the
other condition different from that of the oper-
ating conditions(cooling, heating, dehumidify-
ing mode) is kept for 60 minutes during the
change-over operation.
1) Mode selection for operation start
Indoor
temperature('C)
Cooling
(25°C~28°C)
Heating Dehumidifying
21°C, 23°C)
'
(
18C 21°C Outdoor
temperature(’C)
(_ ) is the set temperature
nC 29°C over 31°C less
Over) 27°C over 29°C less
25°C over 27°C less
25°C less to be set automati-
cally by controller
according to the
indoor temperature
at the operation
start.
to be set automati-
cally by controller
according to the
indoor temperature
at the operation.
start.
18°C over
21°C less
2) Mode selection during the operation
Cooling
(25°C~28'C)
Heating Dehumidifying
(21°C, 23°C)
1 | 21 Outdoor
temperature("C)
(_ ) is the set temperature
31°C over
29°C over 31°C less
27°C over 29°C less
25°C over 27°C less
to be set automati-
cally by controller
according to the
indoor temperature
at the operation
18°C less start.
- 21°C over 23°C less
18°C less mC less
COOL MODE : The unit operates according
to the difference between the setting and
room temperature.(setting Temp.: 18°C~30°C)
HEAT MODE : The unit operates according
to the difference between the setting and
room temperature.(setting Temp.: 16°C~30°C)
*Prevention against cold wind: For about
3~5 minutes after initial operation (thermo
control or “de-ice”), the indoor fan will
either not operate or operate very slowly,
then switch to the selected fan speed. This
period is to allow the indoor unit's heat-
exchanger to prewarm until emitting warm
air.
3-2
Samsung Electronics

*High temperature release function : The
outdoor unit and compressor ON/OFF is
controlled for safety operation when heat
exchanger of indoor unit is over heated.
*De-ice : Deicing operation is controlled by
outdoor unit's heat exchanger temperature
and accumulating time of compressor's
operation.
De-ice ends by sensing of the processing
time by de-ice Condition.
DRY MODE :
*According to the difference between the set
temperature (Ts) and indoor temperature
(Tr), the operation frequency of compressor
is controlled as each area.
(Cooling area/COMP2E ON/OFF
area/Monitoring area) _
Cooling area : same as the cool mode
~» COMP2E ON/OFF area : repeat of
COMP®2 frequency 36[Hz] for 4 minutes
operation /O[Hz](off) for 6 minutes
» Monitoring area : COMP®2 off.
TURBO MODE : This mode is available in
AUTO, COOL, HEAT, DRY, FAN MODE.
When this button is pressed at first, the air
conditioner is operated in “powerful” state
for 30 minutes regardless of the set temper-
ature, room temperature.
When this button is pressed again, or when
the operating time is 30 minutes, turbo
operation mode is canceled and returned to
the previous mode.
*But, if you press the TURBO button in DRY
or FAN mode, it is changed into AUTO
mode automatically.
SLEEP MODE : Sleep mode is available
only in COOL or HEAT mode.
The operation will stop after 6 hours.
“In COOL mode: The setting temperature
is automatically raised by 1°C each lhour
When the temperature has been raised by
total of. 2°C, that temperature is main-
tained.
Samsung Electronics
Operating Instructions and Installation
*In HEAT mode : The setting temperature
is automatically droped by 1°C each Lhour.
When the temperature has been droped by
total of 2°C, that temperature is main-
tained. .
FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending
on the difference between setting and the
room temperature.
COMPULSORY OPERATION :
For operating the air conditioner without
the remote controller, the tact key in indoor
unit can be used.
When started with this key, the mode is set
on “AUTO”.
The operating is the same function as
AUTO MODE in the remote controller.
Each time you press this key, 5WAY
function is changed in the following order;
STD(standard) ~ NATURE —
POWER(High-speed) — Saving(Power-
Saving) + SILENCE
# STD(standard)( ) : General operation
Mode
* NATURE((©) ): The unit is operated
according to health
pattern control
* POWER( () ) : The unit is
operated in
powerful state
* SAVING( @ ): The unit is operated in
power saving state
# SILENCE( (@) ) : The unit is operated
quitely
Each mode has Auto(Cool or Heat) opera-
tion designed in advance.
3-3

Operating Instructions and Installation
9. SWING: BLADE-H is rotated vertically by
’ the stepping motor.
*Memory louver : When ON/OFF button is
pressed at stop state, the BLADE-H returns
to its original location which is operating
state before stop.
remote
control
is
displayed
on
LCD
the
tion
(Indoor-Outdoor
unit)
and
the
blades
move
up
and
down.
If
the
one
Goma
|OOr-
oor uni
X d
more time press the CG) button, blade location
is
stop.
Xx
y__|
Trouble
of
the
control
power
of
the
x Abnormal communication
(Sub-Main micom)
©
.O
@
S
10. 24-Hour ON/OFF Real Setting Timer. : The
air conditioner is turned ON at a specified
time using :
OFF TIMER : The air Conditioner is turned
OFF at a specified time using @im).
*ON TIMER : Only timer LED lights on.
*OFF TIMER : Both timer and operation
LED lights on.
temperature
:
Trouble of DC link voltage circuit
fo] x | Trouble of discharge temp-sensor
(open/short)
‘Trouble of outdoor temp-sensor
i (open/short)
Trouble of de-ice temp-sensor
(open/short)
Trouble of OLP temp-sensor
(open/short)
. | Trouble of AC current sensor
(open/short) and Leakage of refriger-
ant{(R-22)
11. SELF Diagnosis
Indoor unit room temperature sensor
etror(open or short)
Indoor unit heat exchanger tempera-
ture sensor error(open or short)
©|90!/0O
©
Outdoor unit temperature sensor error
{open or short)
- outdoor temp-sensor
- deice
- OLP temp-sensor
ae
ES
©
©
ce)
©
o
discharge temp-sensor
- heatsink temp-sensor
Olxlolx}] x1 x Abnormal communication
(Indoor - Outdoor unit) 12. BUZZER SOUND : Whenever the ON/OFF
Abnormal increase of operation button is pressed or whenever change ~
ISCEX x | x ; ee ite
inseam : occurs to the condition which is set up or
oe ere ae select, the compulsory operation mode,
©
O
OLP
temperature
:
re)
Over
current
of
IPM
circuit
buzzer
is
sounded
"beep".
©
©
| Trouble of the PTC circuit of the out-
_{door
Trouble of AC current sensor(open/
short) and Leakage of refrigerant(R-22)
3-4 Samsung Electronics

3-2 Installation
3-2-1 Selecting Area for Installation
Select an area for installation that is suitable
to the customer's needs. :
3-2-1(a) Indoor Unit
1. Make sure that you install the indoor unit in
an area providing good ventilation. It must
not be blocKed by an obstacle affecting the
airflow near the air inlet and the air outlet.
2. Make sure that you install the indoor unit in
an area allowing good air handling and
endurance of vibration of the indoor unit.
3. Make sure that you install the indoor unit in
an area where there is no source of heat or
vapor nearby.
4, Make sure that you install the indoor unit in
an area from which hot or cool air is spread
evenly in a room.
5. Make sure that you install the indoor unit in
an area away from TVs, audio units, cord-
less phones, fluorescent lighting fixtures
and other electrical appliances (at least 1
meter).
6. Make sure that you install the indoor unit in
an area which provides easy pipe connec-
tion with the outdoor unit, and easy
drainage for condensed water.
7. Make sure that you install the indoor unit in
an area which is large enough to accomo-
date the measurements shown in figure on
the next page.
3-2-1(b) Outdoor Unit
1. Make sure that you install the outdoor unit
in area not exposed to the rain or direct sun
light.
(Install a separate sunblind if exposed to
direct sun light.)
2. Make sure that you install the outdoor unit
in area allowing good air moment, not
amplifying noise or vibration, especially to
avoid disturbing neighbours.
(Fix the unit firmly if it is mounted in a
high place.)
3.
Make
sure
that
you
install
the
outdoor
unit
in
area
providing
good
ventilation
and
which
is
not
dusty.
It
must
not
be
blocked
by
any
obstacle
affecting
the
airflow
near
the
air
inlet
and
the
air
outlet.
4.
Make
sure
that
you
install
the
outdoor
unit
in
area
free
from
animals
or
plants.
5. Make sure that you install the outdoor unit
in area not blocking the traffic.
6.
Make
sure
that
you
install
the
outdoor
unit
in
area
easy
to
drain
condensed
‘water
from
the
indoor
unit.
7. Make sure that you install the outdoor unit
in area which provides easy connection
within the maximum allowable length of a
coolant pipe(15 meters).
Note
1. Add 20 grams of refrigerant (R-22) for every 1 meter
if the pipe length exceeds the standard pipe length of
5 meters.
2. Maintain a height between the indoor and outdoor
units.
—
8.
Make
sure
that
you
install
the
outdoor
unit
in
an
area
which
is
large
enough
to
accom-
modate
the
measurements.
3-2-1(c) Remote Control Unit
1. Make sure that you install the remote con-
trol
unit
in
an
area
free
from
obstacles
such
as curtains etc, which may block signals
from the remote control unit.
2. Make sure that you install the remote con-
trol unit in an area not exposed to
direct sunlight, and where there is no source
of heat.
3. Make sure that you install the remote con-
trol unit in an area away from TVs, audio
units,
cordless
phones,
fluorescent
lighting
fixtures and other electrical appliances (at
least 1 meter).
Caution :
It
is
harmful
to
the
air
conditioner
if
it
is
used
in
the
following
environments:
greasy
areas
{including
areas
near
machines},
salty
areas
such
as
coast
areas,
areas
where
sulfuric
gas
is
present
such
as
hot
spring
areas.
Contact
your
dealer
for
advice.
rr
Samsung Electronics
3-5

Operating Instructions and Installation
3-2-2(a) Refrigerant Refill
® Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using.
1. Purge air{for new installation only).
2. Turn the 3-way valve clockwise to close,
connect the pressure gauge(low
nea
pressure side) to the service valve, and
apen the 3-way valve again.
Y
3. Connect the tank to refill with Refrigerant
4. Set the unit to Low pressure checking mode.
* Press the ON/OFF switch for 5 second.
*All lamps blink on the indoor unit.
rN ea
i | a.
i
Timer gay ll WE |
SS
= @ © ©O®
Press this ON/OFF
Switch for Ssec.
And thea the
Airconditioner
operating on rating
speed.
~— Suspension hook
5. Check the pressure indicated by the
pressure gauge(low pressure side).
*
Refer
to
Low
pressure
graph.
Compound
High
gauge
pressure
gauge
aa
ft) |
Hand
“ty
wheel
6. Open
the
refrigerant
tank
and
fill
with
refrig-
h
<—
Finger
tight
erant
until
the
rated
pressure
is
reached.
fittings
*
Itt
For
mounting
It
is
recommended
not
to
pour
the
Aecand
ot
Ee
ataase
refrigerant
in
too
quickly,
but
gradually
hose
when
high
pressure
while
operating
a
pressure
valve.
not
in
use
side
Charging
line
Y
7. Stop operation of the air conditioner. |
| /
/
8. Close the 3-way valve, disconnect the
pressure gauge, and open the 3-way ‘
valve again. \
9. Close the cap of each valve. |
36 . Samsung Electronics

Operating Instructions and Installation
¢ MODEL NAME : AQV12ACME(UQV12ACME) * MODEL NAME : AQVO9ACME(UQVOSACME)
AQV12ADME(UQV12ADME) AQVO9ADME(UQVO9ADME)
AQV12BCME(UQV12BCME) AQVO9BCME(UQVO9BCME)
AQV12BDME(UQV12BDME) AQVOSBDME(UQV09BDME)
SH12VAC(SH12VACX) SHOSVAC(SHO9VACX)
SH12VAD(SH12VADX) SHOSVAD(SHO9VADX)
6.5 Im
Bp Ss 6.5 ts
255
.
-<.%
428
&
a
=
3
f.
$27.0
&
8 5 & § 555 424.0 9
3 = & sk 42155
B45 3 3 YT 2
4b 5 45 5
S 3 ‘ 2 3
35 : = 4 - + : =
“20 25 30 35 40 45 20 25 30 35 40 45
Outdoor inlet air DB temp.(°C) Outdoor inlet air DB temp.(°C)
3-2-2(b) Refrigerant Adjustment
Class For installation For service
Connection Air-Purge Refrigerant Air-Purge Refrigerant .
Pipe Length Method Adjustment Method Quantity
5m Refer to the Unnecessary refer to
(standard) detailed Air-Purge Purge air using a specification sheet
Procedure vaccum pump
or an additional
refrigerant cylinder.
Add 20g of refrigerant
(R-22) for every 1m.
Add 20g of refrigerant
(R-22) for every 1m.
3-2-2(c) Flare unt fixing torque
Te f
Outter
diameter
z
orque
{kg-cm)
Fixing Torque Final Torque
@ 6.35 (S000Btu, 12000Btu)
(Liquid Side)
@ 9.52 (9000Btu)
(Gas Side}
@ 12.7 (12000Btu)
(Gas Side)
Samsung Electronics a7:

4. Disassembly and Reassembly
Stop
operation
of
the
air
conditioner
and
remove
the
power
cord
before
repairing
the
unit.
4-1 Indoor Unit
6
a
Front Grille 1) Stop the air conditioner operation and block | &
the main power.
2) Seperate tape of front panel upper.
3) Contract the second finger to the left, and
right handle and pull to open the inlet grille.
4) Take the left and right filter out.
lL *Taking off the deodorizing filter. |
5) Loosen one of the right fixing screw and
seperate the terminal cover.
6) Loosen three fixing screws of front grille.
7) Pull the upper left and right of discharge
softly for the outside cover to be pulled out.
8) Pull softly the lower part of discharge and
push it up.
Caution;
Assemble the front panel and fix the
hooks of left and right.
4-1
.
Samsung
Electronics

Parts
Procedure
2
2 Ass’y Tray Drain.
1} Do “1” above
2) Take all the connector of PCB upper side out.
(Inclusion Power cord)
3) Separate the outdoor unit connection wire
from the terminal block.
4) If pulling the Main PCB up. it will be taken
out.
Disassembly and Reassembly
Remark
3 Electrical Parts
(Main PCB)
4 Heat Exchanger
5 Fan Motor and
Cross Fan
1} Do “1”, “2” above
Separate the drain hose from the extension
drain hose.
2) Pull tray drain out from the back body.
2) Loosen two fixing earth screws of right side.
3) Separate the connection pipe.
4) Separate the holder pipe at the rearside.
5) Loosen the three fixing screws of right and
left side.
6) Lifting the heat exchanger up a little to push
the up side for separation from the indoor
unit.
1) Do “1” and “2”, “3” above |
1} Do “1", “2”, "3", “4” above.
2) Loosen the fixing two screws and separate
the motor holder.
3) Loosen the fixing screw of fan motor.
(By use of M3 wrench)
4) Separate the fan motor from the fan.
5)Separate the fan from the left holder bearing.
Samsung Electronics

4-2 Outdoor Unit
Take care of the electrical shock by contact on the charging parts before the discharge
after power off. (If takes approximately 2 minutes to discharge.)
| No | Parts Procedure
1
Common Work &
Ass‘y-control Out
1) Loosen the fixing screw and separate the
Cover-Valve.
2) Separate the Cable-Connector Wire from the
Terminal-Block.
3) Loosen five fixing screws and separate the
Cabi-Upper.
4) Loosen five fixing screws from the
Ass'y-Control Out.
5) Separate the Terminal-Housing from the
Ass’y-Control Out.
6) Separate the Ass'y-Control Out from the
outdoor unit,
7) Loosen seven fixing screws and separate the
Cabi-Side.
Remark
4-3
Samsung Electronics

Parts
2 Fan-Motor
Heat Exchanger
Procedure
1) Loosen Four fixing screw of the Guard-Fan.
2) Remove the nut flange (Turn to the right to
remove, as it is a left hand screw)
3) Separate the fan.
4) Loosen four fixing screws to separate the
motor.
1) Do "1" above.
2) Loosen three fixing screws of Ass’y-Frame
and Partition.
3) Disassemble the inlet and outlet pipe by
welding.
4) Separate the heat exchanger.
Disassembly and Reassemb}
Remark
4-4
Samsung Electronics

Disassembly and Reassembly
C2 Le See
Compressor 1) Do “1” above.
2) Open the terminal cover of compressor and
unscrew the connection terminal.
3) Disassemble the inlet and outlet pipe of
compressor by welding.
4) Disassemble the inlet and outlet pipe of
condenser by welding.
5) Loosen the three bolts of the lower part.
6} Separate the compressor.
4-5 Samsung Electronics

5. Troubleshooting
ARES
ETT
APE
AE
ET
SEL
A
DE.
AAS
TE
BS
I
I
8
Ba
I
PS
I
I
OE
Since
the
inverter
air conditioner
is
equipped
with
Electrical
control
circuits at
both
Indoor
&
outdoor
unit,
the
trouble
shooting
shall
be
performed
according
to
the
error mode.
Inside
the
controller
of
the
outdoor
unit
(inverter),
the
large
capacity
of
electrolytic
condenser
so
that
it
takes
the
time
to
discharge
after
the
power
off
since
the
elecncal
charge
remains
(the charging
voltage DC
340V).
Take
care
of
the
electrical
shock
by
contact
on
the
charging
part
before
the
discharge
after
the
power
off.
(It
takes approximately
2
minutes
to discharge).
5-1 Basic items for trouble shooting
1) Is the power source proper?
The power source shall be in the range of the rated voltage +10%. If it is out of this range, it may
cause
the
abnormal
operation.
2) Is the connection made between the indoor and outdoor unit?
The
connection
between
indoor
and
outdoor
unit
shall
be
performed
with
4
wire.
(connection
cable of indoor and outdoor unit + ground wire).
3) The phenomena as follows are not out of order.
Phenomena Cause and reason
The operation is not done. e ls the power off or the power unplugged?
+ Does it stop because it is the completion time?
« Unplug and plug again the power source for 2 minutes.
The wind comes out but the | « Is the filter clogged with dust or dirty?
heating/cooling
is
not
+
Is
there
any
direct
light
on
the
outdoor
unit
or
any
obstacle
against
it?
performed.
+
Is
the
selected
temperature
too
high?
Lower
the
selected
temperature
lower
than
the
current
one
(during
cooling).
« Is the selected temperature too low? Raise the desired temperature than the
current one (during heating).
« Is the “Fan only Mode” operation?
The remote controller does | « Is the battery run out?
not operate. « Is the battery inserted in the wrong way(+, -)?
« Is the detection part of the indoor unit blocked?
+ Does it interfered with the radio of neon sign?
i
The
wind
volume
is
not
+
Is
the
operation
selected
among
one
of
Auto
/
Dry
/
Turbo
/
Sleeping?
adjusted.
+
The
temperature
setting
is
not
required
since
the
wind
volume
set
automatically.
»
Check
again
at
the
state
of
Cooling
/
Fan
only
/
Heating.
The
temperature
is
not
set.
|
«
Is
the
operation
selected
among
the
Dry
/
Turbo
/
Sleeping
/
Fan
only
Mode.
Since the temperature is automatically set, the temperature setting is not required.
Check again at the cooling/heating state.
+ The standard temperature +2°C during the automatic operation.
The operation lamp continues | « Push the Operation / Stop button.
to be flickering. ¢ Unplug and plug the power source.
The immediate operation ¢ It is the case that the auto restart function works.
Starts
without
control
of
#
Auto
restart
function
is
the
convenient
function
where
the
operation
state
is
memorized
in
remote
controller
when
the
Memory
IC
during
the
blackout
and
the
operation
restarts
when
the
power
comes
back.
plugged
Samsung
Electronics
.
5-1

5-2 The first determination method of troubled part
5-2-1 Error mode display of indoor unit
Air filter Air flow bl ‘out
(under the grille) iow Diese (Oot
fos
Timer indicator 7
OV,
SF
eS
STANDARD indicator
} sway
4
NATURE indicator
Cow
Inverter Power Moniter indicator
(Only the inverter models)
—_
2
Air ns
25
Remote Contro} Sensor
SAVING indicator
\ SILENCE indicator
+ POWER indicator
—— On/Off & 5 Way
j selection button
LAMP of Display Monitor
&
Rell Reae
“7 @ ©
NATURE | SAVING | SILENCE
Description
© : LAMP ON
@ LAMP FLICKERING
X : LAMP OFF
Indoor unit room temperature sensor erroropen or short)
Indoor unit heat exchanger temperature sensor error
{open or short)
Indoor fan motor mal function
EEPROM error
Option error
Outdoor unit temperature sensor error{open or short)
- outdoor temp-sensor
- deice temp-sensor
- OLP temp- sensor
- discharge temp-sensor
- heatsink temp-sensor
Abnormal communication (Indoor - Outdoor unit)
Abnormal increase of operation current
Abnormal increase of discharge and OLP temperature
5-2
Trouble of the PTC circuit of the outdoor
Trouble of AC current sensor (open/short) and Leakage of
X © Over current of IPM circuit
3 © |e f> |
Xx X
Samsung Electronics

Troubleshosting
5-2-2 Error mode display of outdoor unit board
RED GREEN YELLOW
Oo O ©
LED3 LED2
Description
@ : AvP on
© : LAMP FLICKERING
X_ : LAMP OFF
Normal operation and communication (Indoor-Outdoor unit)
Abnormal communication(Indoot-Outdoor unit)
Trouble of the control power of the outdoor
Abnormal communication (Sub-Main micom)
LAMP of inverter PBA
YELLOW
X
No zero-crossing signal
Trouble of option setting
Abnormal increase of discharge temperature
Abnormal increase of OLP temperature
Abnormal increase of operation current
Over current of IPM circuit
Over voltage of IPM circuit
Over voltage and current of PFC circuit
Trouble of DC link voltage circuit
Trouble of discharge temp-sensor{open/short)
Trouble of outdoor temp-sensor(open/short)
Trouble of deice temp-sensor(open/short)
Trouble of OLP temp-sensor{open/short)
@ | 0/0/0| x/O/@} 0/0 | x|/@}/@/O|O| x
© |O|O| O/O/@| @| x|< | O/O
Trouble of AC current sensor(open/short) and Leakage of
refrigerant(R-22)
Samsung Electronics 5-3