Page 1
SERVICE MANUAL
AMC-12AN
MOBILE
SERIES
Page 2
Page 3
Summary and features
MODEL: AMC-12AN
FAN
AUTO
OPER
HEALTH
AIR
FILTER
TURBO
ON/OFF
BLOW
HOUR
HUMIDITY
ON/OFF
MODE
FAN
BLOW
TURBO
TEMP
TIMER
SLEEP
LIGHT
YB1F2
Page 4
AMC-12AN
CK01001210
COOLING
220-240V
50Hz
3516/12000
1400
1550
7.5
450/420/390
1.5
2.61
A
Fan Type-Piece Centrifugal fan / 1an - 1
Diameter-Length (mm) 218 X 109
Evaporator Alum inum fin-co pper tube
Pipe Diam eter (mm) 7
Row-Fin Gap 3-1.6
Coil length (l) x height (H) x
coil width (L)
363X285X38.1
Swing Motor Model MP28 GA
Output of Swing Motor (W) 28
Fus e (A) PCB 3.15A
Sound Pressure Level dB
(A) (H/M/L)
58/56/52
Indoor
Side
EER / C.O.P (W/W)
Energy Clas s
Ai r Fl o w Vol u m e (m
3
/h) (H/M/L)
Dehumidifying Volume (l/h)
Total Cap acity (W/Btu /h)
Power Input (W)
Rated Input (W)
Rated Current (A)
Fun ction
Rated Voltage
Rated Frequency
Model
Product Code
2.Specifications
Unit Specifications
Page 5
AMC-12AN
Zhuhai Landa Com pres s o r
Co., Ltd
QXA-C133B030g
rotary compres s or
32
5
1130
B205-150B-241E
Capillary
Capacitor
16 35
Alum inum fin-co pper tube
7
4-1.6
350X350X50.8
Centrifugal fan / 1an - 1
218 X 109
/
/
/
800/700/600
65
0.3
3
T1
B
IP24
5.8
1.2
550/840/460
581/531/862
46/53.5
R410A/0.8
Dimension (W/H/D)( mm)
Dimension of Package (L/W/H)(mm)
Net Weight /Gross Weight (kg)
Refrigerant Charge (kg)
Isolation
Mo is tu re P ro tecti on
Permissible Exces sive Operating
Pressure for the Discharge Side(MPa)
Permissible Exces sive Operating
Pressure for the Suction Side(MPa)
Output of Fan Moto r (W)
Fan Moto r RLA(A)
Fan Moto r Capacito r (F)
Climate Type
Sound Pressure Level dB
(A) (H/M/L)
Sound Power Level dB (A)
(H/M/L)
Defrosting Method
Fan Moto r Spee d (rp m ) (H/M/L)
Rows-Fin Gap(mm)
Coil length (l) x height (H) x
coil width (L)
Fan Type-Piece
Fan Diam e ter (m m )
Starting Method
Working Temp Range ()
Condenser
Pipe Diam eter (mm)
Model
Outdoor
Side
Compressor
Ma nu fa cturer/trad em a rk
Compressor Model
Compressor Type
L.R.A. (A)
Compressor RLA(A)
Compressor Power
Input(W)
Overload Protector
Throttli ng Method
Page 6
Model AMC-12AN
Front
Rear
Air outlet
Controller panel
Handle
Remote box
Upper air inlet grille
Air exhaust outlet
Lower air inlet grille
3. Construction Views
Page 7
Outline and installation dimension
Unit
460
Model AMC-12AN
4. Outline and installation Dimension
Page 8
5. Refrigerant System Diagram
HEAT
EXCHANGE
(EVAPORATOR)
COMPRESSOR
Page 9
Model AMC-12AN
6.1 Electrical wiring
6. Schematic Diagram
Page 10
6.2 Printed Circuit Board
Models AMC-12AN
6.2.1 Dispay board
TOP VIEW
BOTTOM VIEW
Page 11
BOTTOM VIEW
TOP VIEW
Terminal to connect display board DISP1, DISP2
Switch of high water level HIGH-WP
Indoor environment ROOM
Temperature for indoor pipe TUBE
Swing motor SWING
Compressor relau K201
Zero line copper fin N3
Transformer output TR-OUT
Zero line copper fin N1,N2
Protective tube FU201
Piezoresistance RV201
Transformer input TR-IN
Indoor fan motor FAN
Outdoor fan motor FAN
Kick motor control WATER
Model AMC-12AN
6.2.2 Control board
Page 12
●
AUTO
COOL
DRY
FAN
HEAT (Note:no for coolling
FAN
FAN speed button
Press this button once, fan speed will change
as below:
Auto
Low speed Middle speed
High speed
Note:Under the Dry mode, the fan speed isn't
●
Simpleness swing mode is defaulted for wireless
remote control, in this mode, press this button,
( / )
●
Note: Be sure that there are no obstructions between receiver and remote control; Don't drop
or throw the remote control; Don't let any liquid in the remote control and put the remote control
directly under the sunlight or any place where is very hot
.
Signal transmitter
Remote control
ON/OFF
ON/OFF button
Press this button, the unit will be started or stopped,
which can clear the timer or sleeping function of
last time.
●
only unit)
When press +button , the setting temp. will b
e
setting temp. will be decreased by
The temp. will be changed quickly
the button continuously and setting temp. range
is
by pressing
●
●
●
Swing up and down button
below.
Press this button, the running mode
will change as
Mode button
MODE
FAN
AUTO
OPER
HEALTH
AIR
FILTER
TURBO
ON/OFF
BLOW
HOUR
HUMIDITY
ON/OFF
MODE
FAN
BLOW
TURBO
TEMP
TIMER
SLEEP
LIGHT
could turn on or turn off the Up and down
swing function.
When unit is turned off, synchronously press
"+" and Up and down swing buttons, it could
be switched between the simpleness swing
mode and stationary swing mode, at this time,
blinks 2 seconds.
In Stationary swing mode, press this button,the
angle for Up and down swing as show in below:
When up and down swing louver is working,
when turn off the unit, the siwng louver will
●
immediately stop at current position.
shows up and down swing louver swings back
and forth as show in the above figure.
adjustable, low fan speed is imperative,
but when operating this button, the wireless
remote control will send this signal.
increased by 1 (1 ),When press -button,the
1
(1 )
This Remote control is universal,it could be
used formany units,some buttons of this
control which are not available to this unit
will not be described below.
(+/-)button7
7. Operation of wireless remote control
Page 13
HEALTH function:there is no this function
for this unit. If press this key, the main unit
will click, but it also runs under original status.
wireless remote control, fan speed automatically
rotates, when repress this button, the fan speed
will run at previous setting fan speed.
FAN
AUTO
OPER
HEALTH
AIR
FILTER
TURBO
ON/OFF
BLOW
HOUR
HUMIDITY
ON/OFF
MODE
FAN
BLOW
TURBO
TEMP
TIMER
SLEEP
LIGHT
TIMER
●
●
On the status of the unit on, press this
button to set timer off. On the status of
the unit off, press this button to set timer
off. Press this key once, words Hour on(off)
will appear and flicker. In which case, press
+/- button to adjust time (press+/- button
the setting time range is from 0.5 to 24 hr.
;
continuously to change timing value quickly
),
then remote controller will send out the signal
immediately and hour on/off will stop flickering.
If the time of that no press timer button
under flickering status is above 5s,the timer
setting will quit. If the timer has been set,
press this button once again to quit it.
press this key once again to fix the time,
There is no this function for this unit. If
press this key, the main unit will click, but
it also runs under original status.
Temp. display button
TEMP
●
●
Save energy function: this unit has no this
function, press this button, the mian unit will
click, "SE" will be displayed on the LCD of
Remote control
TURBO
Turbo button
Set turbo on or off(the characters of turbo
will appear or disappear ) by pressing this
●
key unde r cooling or heating mode.Once
energized, the unit will be defaulted to be
turbo off. This function can not be set under
of turbo won't appea r .
auto, dehumidify or fan mode, and characters
button
Left and right swing button
Timer button
●
There is no this function for this unit. If
press this key, the main unit will click, but
it also runs under original status.
Page 14
1 , 2 hours later setting
FAN
AUTO
OPER
HEALTH
AIR
FILTER
TURBO
ON/OFF
BLOW
HOUR
HUMIDITY
ON/OFF
MODE
FAN
BLOW
TURBO
TEMP
TIMER
SLEEP
LIGHT
●
ć
●
●
●
●
NOTE: This remote controller is universal, it could be used for many units, some
buttons of this controller which are not available to this unit will not be
described below.
Blow button
Set Blow on (the character of Blow will
appear)or off (the character of Blow disappear) by pressing this key under cool
or dehumidify mode. Once energized,the
unit will be defaulted to be Blow off.
This function can not be set under auto,
fan or heat mode, and the character of
Blow won't appear.
Press this button to select LIGHT on or off
in the displayer. When the LIGHT is on,
the icon will be displayed and the indi-
cators' light in the displayer will be on.
When the LIGHT is off, the icon will be
disappeared and all the indicators' light in
the displayer will be off.
Light button
LIGHT
Press this button, enter into SLEEP state,
when repressed, it will quit. The sleep function
and FAN mode.
will be canceled with the stop of the unit.
There is no SLEEP function under AUTO
is the icon for sleep
function.
SLEEP
Sleep button
At COOL, BLOW mode: the SLEEP mode runs
after 1 hour, the setting temp. will be increased
by 1 , 2 hour later, setting temp. will be
increased by 2 and then will run at
this setting temperature.
after 1hour, the setting temp will be
At HEAT mode: the SLEEP mode runs
decreased by
, then it
will run at setting temperature.
ć
ć
ć
will be decreased by 2
Remote controller
BLOW
(1 )
°
F
( 2 )
°
F
(1 )
°
F
(2
°
F)
Page 15
1.Press ON/OFF button to start the unit after powering
the main unit on.(Note: Power the unit on every time,
the big -guide louver and small-guide louver will be
closed firstly.
)
2.Press MODE button to select desired running mode.
3.Press +/ - button to set the desired temperature
.
(It is unable to set the temperature at AUTO mode)
4. Press FAN button to set fan speed, the AUTO FAN,
LOW, MID or HIGH could be selected.
5. Press button to set swing mode.
1.Press SLEEP button, set the sleep mode.
2.Press TIMER button, then press +/- button, to set the
3. Press LIGHT button to control displayer light on or off.
4. Press BLOW button to set Blow function on or off.
5. Press TURBO button to set this function on or off.
Guide for operation-optional operation
Introduction for special function
This function indicates that moisture on evaporator of indoor unit will be blowed after the unit
About blow function
is stopped to avoid mould.
1. Having set blow function on: After turning off the unit by pressing ON/OFF button
indoor fan will continue running for about 10 min. at low speed. In this period,
press blow button to stop indoor fan directly.
2. Having set blow function off: After turning off the unit by pressing ON/OFF button,
the complete unit will be off directly.
ON/OFF
MODE
FAN
BLOW
TURBO
SLEEP LIGHT
TEMP TIMER
ON/OFF
MODE
FAN
BLOW
TURBO
SLEEP LIGHT
TEMP TIMER
scheduled timer on or timer off.
Guide for operation-general operation
Page 16
When AUTO RUN mode is selected, the setting temperature will not be displayed on the
LCD, the unit will be in accordance with the room temp. automatically to select the suitable
running method and to make ambient comfortable.
About turbo function
If start this function, the unit will run at super-high fan speed to cool or heat quickly so that
the ambient temp. approachs the preset temp. as soon as possible.
Press +and - buttons simultaneously to lock or unlock the keyboard. If the remote controller
is locked, the icon
flicker for three times. If the keyboard is unlocked, the mark will disappear.
About switch between Fahrenheit and Centigrade
Under status of unit off, press MODE and
-
buttons simultaneously to switch
ć and .
It indicates: after starting this function by remote controller and the unit has been under
defrost status, If turn off the unit by remote controller, the unit will not stop defrosting until
it is finished; if change setting mode by remote controller, the function ,which is set last
time, won't be carried out until defrosting finished.
Operation of this function on or off: If remote controller is under off status, press mode button
and blow button simultaneously in order to enter or cancel this new function. If the unit is under
defrost mode, dual eight position on remote controller will display H1.If switch to heat mode,
the position will display H1, which flickers for 5s, in which case, press +/- button, H1 will
disappear and setting temp. be displayed.
After remote controller is powered on , the new defrost function will be defaulted to be
closed.
ƾ
ƾ
ƾ
ƾ
ƾ
About lock
About AUTO RUN
About new function of defrosting (The appliance of the defrosting function is unavailable.)
will be displayed on it, in which case, press any button, the mark will
4.
2.
3.
ƾ
●
●
●
●
●
Take out the old batteries. (As show in figure)
Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
(As show in figure)
Attach the back cover of wireless remote control. (As show in figure)
When changing the batteries, do not use the old or different batteries,
If the wireless remote control will not be used for a long time, please
otherwise, it can cause the malfunction of the wireless remote control.
take them out, and don't let the leakage liquid damage the wireless
remote control.
The operation should be in its receiving range.
It should be placed at where is 1m away from the TV set or stereo sound sets.
If the wireless remote control can not operate normally, please take them out,
after 30s later and reinsert, if they cannot normally run, please change them.
Sketch map for
changing batteries
NOTE:
Changing batteries and notices
1. Slightly to press the placetwih, along the arrowhead directionto push the
back cover of wireless remote control. (As show in figure)
Page 17
8.2 This function manual is applicable to export mobile AC: AMC-12AN.
There are two units for temperature display of mobile AC:Centigrade and Fahrenheit.
The unit for temperature is centigrade in this function manual.
If there is Fahrenheit, the transition relation is TFahrenheit=TCentigradex1.8+32.
8.2.1 Basic Functions of System
After the unit is energized, the interval of start-up time for compressor is no less than 3min under any
conditions; when the compressor is started, the unit is off without the temperature change in 6min.
Working conditions and process of cooling
a) When Tabm.Tpreset + 1 (2), the unit will start to run in cooling mode, the compressor and kick
motor start to run, and fan motor runs under preset fan speed.
b) When Tabm. Tpreset - 1 (2), the compressor and kick motor stop to run, and fan motor runs
under preset fan speed.
c) When Tpreset - 1 (2)<Tamb.<Tpreset + 1 (2), the unit will keep the current running status.
Under this mode, the temperature setting range is 61-86 (16-30).
Anti-freeze protection period
min
compressor
upper fan motor
l
ower fan motor
run
stop
setting fan speed
8. Function and control
Page 18
DRY Mode
Working conditions and process of dry
Under this mode, the unit will not display setting temperature and ambient temperature; the fan motor runs under low
fan speed; the compressor, fan motor and kick motor continue to run.
FAN Mode
Under this mode, the unit will not display setting temperature and ambient temperature; the fan motor runs under
setting fan speed; the compressor, fan motor and kick motor stop to run.
Under this mode, the centigrade temperature setting range is 16-30, the fahrenheit temperature setting range
is 61-86.
AUTO Mode
Under AUTO mode, the standard cooling Tpreset=25(77), standard heating Tpreset=20(68)
It will goes to auto cooling mode when Tamb.>26(79); and goes to auto fan mode when Tamb.<20(68);
20(68)Ta mb .23(73), if the previous running is fan (including general fan and auto fan), it will keep the
running status of auto fan mode, if the previous running is not fan, it will goes to auto dry mode;
26(79)Ta mb .24(74), it goes to auto dry mode; when the unit is first energized,
26(79)Ta mb .20(68), it runs under dry mode.
8.2.3 Other Functions
Buzzer
When the controller is energized, receiving a signal from remote controller or button, the buzzer will give out a
beep.
Sleep
a) Under cooling mode, after 1h of setting sleep process, Tpreset increases 2(1); 2h later, Tpreset increases
4(2). After 2h, the setting temperature never increases, but the upper limit of increased setting temperature is
86(30)
b) Under heating mode, after 1h of setting sleep process, Tpreset decreases 2(1); 2h later, Tpreset decreases
4(2). After 2h, the setting temperature never decreases, but the upper limit of decreased setting temperature is
61(16)
c) There is no sleep function under fan and dry mode.
d) When set sleep function, shift mode will cancel sleep function.
e) The setting temperature display is the same with remote controller; it is not influenced by the setting temperature
increases/decreases.
Auto Fan
a) Auto fan speed under cooling mode
Ta mb Tpreset+4 (2 ) High fan;
Tpreset<Tamb.< Tpreset+4 (2 ) Med fan;
Ta mb T preset Low fan
b) There is 3.5min delay for auto fan shift.
TIMER Function
General timer
a) TIMER ON: It can set timer on when the system is off, the setting time range is 0.5h-24h, when the time of
setting timer on reaches, and the system runs with the previous setting mode.
b) TIMER OFF: It can set timer on when the system is on, the setting time range is 0.5h-24h, when the time of
setting timer off reaches, the system stop to work.
Clock timer
a) TIMER ON: If set timer on when the system is running, it continues to run; if set timer on when the system is off,
when the time of setting timer on reaches, and the system runs with the previous setting mode.
b) TIMER OFF: If set timer off when the system is off, the system keeps the stand-by status when setting timer off;
if set timer off when the system is on, when the time of timer off reaches, the system stops to run.
Memory Function
The system memories the setting running status of previous power-off, and runs automatically with the setting
running status before it power-off when it is energized again. If the unit is on before power-off, the compressor will
3min delay protection when it is energized again.
Indicator Lamp, dual-8 digital pipe:
a) When the unit runs, under cooling mode, cooling indicator lamp lights, dual-8 displays preset temperature.
b) When the unit runs, under fan mode, fan indicator lamp lights, dual-8 does not display.
c) When the unit runs, under dry mode, dry indicator lamp lights, dual-8 does not display.
d) When the unit runs, under heating mode, heating indicator lamp lights, dual-8 displays preset temperature.
Setting button function
a) ON/OFF button: It controls system’s switch.
b) Mode button: Mode setting cycle with below sequence: Cooling only unit: cooling-> dry-> fan.
c) Temp. button: Set temperature when the unit is on, the setting temperature decreases 1 or per press
Te mp . button; it will never setting when the setting reaches to 16 or 61 . The button is not valid under auto,
dry and fan mode.
d) Temp. button: Set temperature when the unit is on, the setting temperature increases 1 or per press
Te mp . button; it will never setting when the setting reaches to 30 or 86 . The button is not valid under auto,
dry and fan mode.
Page 19
Ａ
Ｃ
Ｂ
Ｄ
Ｌ
Ｏ
Light Control
If set the light is on with remote control, the indicator lamp and dual-8 display the current setting status; if set the
light is off with remote control, turn off the lamp immediately. If there is front panel button or remote control button
operation when setting light off with remote control, the indicator lamp and dual-8 display current setting status,
and turn off the light 5S later. Remote control light button does not controlled by failure display.
SWING Motor Control
After the unit is energized, the swing (up and down) motor will make the guide louver circumvolve to position 0;
close the outlet port. After the unit is on, if it does not set swing function, guide louver (up and down) will
circumvolve to position D. Setting swing function when the unit is on, the guide louver swings between L and D.
There are 7 swing statuses for guide louver: position L, position A, position B, position C, position D, swing
between position L and D, stop between any position L and D.
When the unit is off, the guide louver will chose to position 0. The swing action is valid when setting swing order
and indoor fan is running.
Note: When the remote control setting is on position L to B, position A to C, position B to D, the guide louver swings
between position L and D. The angle of energized reset swing off is: 80°; when the unit is off, add 5°to the current
angle then close guide louver. The corresponding angle of position L to D is: 39°-48°-57°-66°-75°.
Protection Function
Anti-freez e Protectio n
When the anti-freeze protection is inspected, the compressor stops, fan motor runs with setting fan speed. When
the anti-freeze protection is canceled and reaches to the 3min time-delay, it runs with the original status.
Te mp e ra tu r e s en s or f a il u re i n sp e ct io n
e) Environment temperature sensor is open, short circuit: dual-8 displays F1, the cooling indicator lamp goes out
3S and blinks 1 time, and it will light up 0.5S and go out 0.5S when it is blinking.
f) Indoor pipe temperature sensor is open, short circuit: dual-8 displays F2, the cooling indicator lamp goes out
3S and blinks 2 times, and it will light up 0.5S and go out 0.5S when it is blinking.
g) Outdoor pipe temperature sensor is open, short circuit: dual-8 displays F4, the cooling indicator lamp goes out
3S and blinks 2 times, and it will light up 0.5S and go out 0.5S when it is blinking.
h) The compressor or electric heating pipe stops when the temperature sensor failure and the unit is on, The fan
motor will be deal regarding compressor or electric pipe reach to the temperature point and stops.
Over current Protection
If the system current is inspected too large for 3min continuously, the fan motor runs with setting conditions, other
load stops; 3min later, the unit runs with the previously status; if over current protection occurs for 6 times
continuously, display error code “E5”, the load stops this time; if block the button except ON/OFF button, it will
remote control the unit to off then on, or turn off with button, or re-energized; the time of over current protection will
zero clearing with remote control, press to turn on or re-energized.
Over-flow Protection
If the over-flow is detected for 3S, it will enter into over-flow protection. Display error code H8, heating indicator
lamp or over-flow indicator lamp goes out 3S and blinks 8 times.
Page 20
10. Troubleshooting
10.1 Confirm below 2 points before any failures occurred
(1) Confirm power supply is OK
Check the plug of power line is normal energized and work.
(2) Confirm power voltage
Make sure the voltage is between normal range, if exceed the range, the unit may abnormally runs.
AC 220-240+/-10%
10.2 Error Code
Please see the blow failure contents and repair methods when the unit is energized or the error code occurred
during the unit runs.
Failure Display
Code Failure Name
Dual-8
Display
Indicator Lamp
Repair Method
1 Environment temperature
sensor is open, short circuit.
F1 Cooling indicator lamp goes
out 3S blinks 1 time, and
lights up 0.5S goes out 0.5S
If loose, text resistance value if
normal by universal meter
2 Temperature sensor for
indoor pipe temperature is
open, short circuit.
F2 Cooling indicator lamp goes
out 3S blinks 2 times, and
lights up 0.5S goes out 0.5S
If loose, text resistance value if
normal by universal meter
3 Over-blow protection H8 Over-blow indicator lamp goes
out 3S blinks 8 times
the indication of
instruction to discharge the water
of chassis.
Refer to
Page 21
F1
Y
N
Y
N
Y
F2
N
Y
N
N
N
Y
Y
N
N
N
Y
N
Y
10.3 Failure Repair
10.3.1 Failure for temperature sensor
Main test point:
If the outdoor environment temperature is in normal range
If fan motor normally runs.
If the radiating environment of indoor and outdoor unit is good
Check the flow process of failure is:
Turn on the unit
Display
Display
Replace
control
board
Replace
control
board
board
control
Replace
Check if the indoor
temperature sensor
is connected tightly.
Check if the indoor
temperature sensor
s connected tightly.
i
Replace
temperaure
sensor
Replace
temperaure
sensor
Adjust
connection
Adjust
connection
Failure is
cancelled
Failure is
cancelled
cancelled
Failure is
Failure is
cancelled
End
Page 22
Y
N
Y
N
N
Y
Y
Y
Y
Y
N
10.3.2 Failure for switch of water level
Main test point:
If the defrosting tray is over-blow
If the connection line of water level switch is good.
If the water level switch is damaged.
Check the flow process of failure is:
Turn on the unit
Display H8
If the defrosting tray
is over-blow
Refer to the indication
of instruction to discharge
the water of chassis.
Connection line of
water level switch is tight.
Failure is
cancelled.
Adjust
connection
Failure is
cancelled.
Replace the
switch of water
level
Failure is
cancelled.
Replace
control
board
End
Page 23
Y
Y
Y
N
Y
N
N
Y
N
10.3.3 Motor failure (including upper motor and lower motor)
Main test point:
If the motor does not rotate.
Check the flow process of failure is:
Turn on the unit
Motor does
not rotate
If the connection
line is tight.
Replace control
board
Adjust
connection
Failure is
cancelled
Failure is
cancelled
Replace
control
board
Replace motor
Failure is
cancelled
End
Page 24
Failure Phenomenon and Solution
Phenomenon
Possible results
Solution
The unit
does not
start-up
There is no action
after the unit is
energized.
No power
Check the power circuit
The power plug is not well insert or
bad connection.
Check the plug is well insert, and make sure
the connection is good.
The fuse is damaged.
Replace the fuse
The connection line of indoor unit is
loose.
Re-insert it refer to the circuit diagram.
Controller (power circuit, slug, crystal
vibration) is damaged.
Replace controller
The buzzer give out a
beep when the unit is
energized. But does
not start-up if press
ON/OFF.
indoor environment temperature sensor
is damaged (bad contact, loose,
leading-out wire is damaged, the
resistance of temperature's terminal
is abnormal and so on).
Temperature sensor is well connected or
replace temperature sensor.
LCD displays "H8",
buzzer alarms 8 times
(over-blow protection)
The water on the chassis is over-blow.
Drainage the wate
Switch circuit of water level is damaged.Check the switch of water level and circuit.
Turn on the
fan, and the
compressor
does not
start-up.
Turn on or turn off
compressor
frequently under
cooling or dry mode.
(abnormal anti-freeze
protection)
Filter is dirty.
Clean the filter.
The inlet and outlet port are blocked.
Move the barrier or move the unit ro empty
place.
The rotational speed of fan is slow, or
fan does not rotate.
Check if the fan motor's supply circuit of
controller is normal, if the connection wire
of motor is loosen, and failure for capacity
or motor.
The refrigerant is leakage.
Detect the leakage or charge refrigerant.
The cooling system is blocked.
Clean pipe system and recharge.
Compressor (or its capacity) is failure.
Replace compressor (capacity)
Failure for tube temp. sensor (bad
contact, loose,leading-out wire is
damaged, the resistance of
temperature's terminalis abnormal )
Temperature sensor is well connected or
replace temperature sensor.
Controller is damaged.
Replace the controller.
Display "E5"
The power is low.
Insure the power is under normal range and
use voltage regulator.
Load is large (the system or port is
blocked or dirty; or failure for fan and
compressor)
Solve failure or replace failure component
supply
Page 25
Phenomena
Possible results
Solution
Poor cool operation
Filter is dirty.
Clean the filter.
The inlet and outlet port are blocked.
Move the barrier or move the unit ro empty
place.
The refrigerant is leakage.
Detect the leakage or charge refrigerant.
The cooling system is blocked.
Clean pipe system and recharge.
The rotational speed of fan is slow, or
fan does not rotate.
Check if the fan motor's supply circuit of
controller is normal, if the connection wire
of motor is loosen, and failure for capacity
or motor.
Set cooling (dry) mode, but no
cool air blow out.
Indoor temperature is less than preset
temperature (under cooling)
Normal phenomena (adjust lower preset
temperature)
Evaporator is frosting.
The system is defrost, and abnormally runs
after defrost.
Abnormal noise
Sparepart is loose.
Bind the spareparts.
The fan is decentred.
Replace the fan.
Compressor is damaged. Replace the compressor.
Not stop after over-blow
The switch of water level is open circuit.
Check and repair switch loop of water level.
Over-blow protection frequent
Kick motor is damaged.
Replace the kick motor.
Page 26
1
2
screw
screw
Disassemble decoration plate
Unscrew the screw on the decoration plate
bottom, lift the decoration plate upwards
to remove it. (note: need lift at full tilt
because of clasps on both sides)
clasp
display plate
Disassemble front panel
(1)Disassemble front panel: unscrew the 7
screws of front panel, lift the panel upwards
to remove it.
(2)Separate panel: after lift front panel,
remove the display of panel from clasp,
then the front panel can be separated.
11. Removal Procedure
Page 27
3
4
screw
screw
screw
Disassemble rear panel
terminal board
Unscrew the screw of terminal board first
t
o remove the terminal board, then unscrew
the 14 screws of rear panel (there are 6
screws on the front, 5 screws on the rear,
and both sides per 1 screw), break the
clasps of both sides outwards to remove
the rear panel.
Disassemble electric box
(1)Disassemble electric box: unscrew the
3 screws of electric box cover to remove
the electric box cover.
(2)After remove the electric box cover,
pull out the related electric wire, cut the
wire clip, and unscrew the 3 screws of
the electric box to remove the electric box.
Page 28
5
6
6
screw
screw
screw
Disassemble top duct subassembly
After unscrew the 7 screws of top duct
subassembly, lift the top duct subassembly
upwards and onwards to remove the whole
subassembly.
Disassemble supporting plate
Unscrew the related screws of supporting
plate to remove the supporing plate.
middle inner cover
Disassemble bottom duct subassembly
Unscrew the screw of middle inner cover
first, then unscrew the 9 screws of bottom
duct subassembly, after unscrew the screw
lift a little middle inner cover to remove
the bottom duct subassembly.
Page 29
7
8
9
screw
screw
screw
screw
nut
Disassemble top duct motor
(1)Disassemble fan (top); unscrew
the nut of fan and remove the gasket to
remove the fan.
(2)Disassemble motor: after disassemble
fan as the diagram shown, unscrew
the 4 screws of motor to remove the motor.
fan
Disassemble electric heating
subassembly (not valid for cooling uni
t)
(1)Disassemble electric heating shell:
unscrew the 4 screws of electric heating
shell, then it can be separated from top
duct subassembly.
(2)Disassemble: unscrew the 4 screws of
electric heating subassembly to remove
the electric heating subassembly
step motor
Disassemble protection grill nets
(1)Disassemble step motor: unscrew the 2
screws of step motor to remove the step
motor.
Page 30
10
screw
screw
nut
guide plate
clasp
(2)Disassemble guide plate: after remove
the step motor, the clasp can be removed
from guide plate.
(3)Disassemble protection grill nets: after
remove the step motor, tear the sponge
on the right bottom cornor and there is a
screw, unscrew the screw to remove the
protection grill nets. (refer to the right
diagram to see the screw position)
protection grill nets
screw position
Disassemble bottom duct motor
(1)Disassemble propeller housing: unscrew
the 4 screws of propeller housing to remove
the propeller housing.
(2)Disassemble fan(bottom): unscrew
the nut of a fan, and remove the two
gaskets to remove the fan.
(3)Disassemble motor:after remove the
fan, the motor can be seen, unscrew
the 4 screws of motor to remove the motor.
Page 31
12
13
11
screw
screw
nut
Disassemble compressor
Unscrew the 3 nuts on the bottom of
compressor and remove the related
gasket to remove the compressor.
Disassemble kick motor subassembly
Unscrew the 2 screws on the outside
bottom of subassembly to remove the
kick motor subassembly.
Disassemble liquid level switch
Unscrew the 2 screws of subassembly to
remove the liquid level switch.
Page 32
PARTS GUIDE
AMC-12AN
MOBILE SERIES
Page 33
Page 34
9.1 Exploded View (Model AMC-12AN)
Page 35
No Description Part Code
Note
Qty
Price
Code
1
Decorative Board sub-assy 20196011
1 AN
2
Decorative Board 20196006S
1 AK
3
Decorative Block 20196013
1 AC
4
Decorative Strip 20196012
1 AE
5
Front Panel 20006059
1 AW
6
Front Panel Sub-Assy 20006061
1 AL
7
Display Board 30567012
1 AS
8
Button 45036021
1 AE
9
Fan Motor 1501603903
1 AY
10
Motor holder (upper) 26156043
1 AU
11
Electric Box Assy 01406016
1 BC
12
Main Board 30137003
1 AZ
13
Ambient Temperature Sensor 390000451
1 AD
14
Tube Sensor 390000594
1 AD
15
Transformer 43110295
1 AH
16
Capacitor CBB65 33010743
1 AK
17
Capacitor CBB61 33010027
1 AE
18
Capacitor CBB61 33010025
1 AE
19
Electric Box Cover 01416010
1 AD
20
Chassis Sub-assy 01206038P
1 AF
21
Gear Sub-Assy 10546005
1 AC
22
Centrifugal Fan 10316058
1 AM
23
Guide Louver 1 10516051
1 AD
24
Guide Louver 2 10516052
1 AD
25
Diversion Circle (upper) 10376035
1 AE
26
Stepping Motor 1521210301
1 AF
27
Left Axile Bush 10512037
3 AB
28
Mid-Clapboard 20056095
1 AL
29
Water Tray 20186072
1 AM
30
Evaporator Assy 01006050
1 BH
31
Filter Sub-assy 11126011
1 AD
32
Rear Plate Sub-Assy 20056105
1 AU
33
backboard 1 20056096
1 AR
34
Remote control box 20116012
1 AD
35
Cover of Remote control box 20126072
1 AE
36
Cable Cross Plate 26116060
1 AD
37
Female Clip 70810302
1 AB
38
Condenser Assy 0110610301
1 BK
39
Motor holder b (lower) 26156046
1 AP
40
Fan Motor 1501603902
1 AY
41
Centrifugal Fan 10316058
1 AM
42
Diversion Circle (lower) 10376034
1 AP
43
Discharge Tube 03616079
1 AG
44
Capillary Sub-Assy 03006095
1 AU
45
Inhalation Tube 03626095
1 AK
46
Compressor and Fittings 00103781
1 BL
PART 1
MODEL: AMC-12AN
Page 36
PART 2
No Description Part Code
Note
Qty
Price
Code
47
Overload Protector build-in 1 AQ
48
Compressor Gasket 76710247 3 AC
49
Water Tray Sub-Assy 20186141 1 AX
50
Water Tray 12416008 1 AU
51
WaterLevelSwitch Sub-Assy 26156045 1 AM
52
water level switch base 26156041 1 AC
53
Water Level Switch 45010211 1 AL
54
Castor 24236051 4 AC
55
Motor Sub-assy(Flutter) 15006032 1 AZ
56
Fan Motor 150162122 1 AX
57
Pump Fan 10336003 1 AL
58
Exhaust Pipe Sub-Assy 05236034 1 AT
59
Rear Clip 2611601001 1 AF
60
Remote Controller 305100611 1 AT
61
Power Cord 400204648 1 AF
62
Drain Pipe 05230013 .3
Crank 10582070 1
Tie-in 1 06646021 1
Joint3 26116064 1
Foam(Propeller Housing) 12316036 1
Pipe 05236058 1
The data are subject to change without notice.
MODEL: AMC-12AN
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