SHARP AY-X 9PSR, 12PSR, AE-X 9PSR, 12PSR split-system air conditioner Service Manual

AY-X9PSR
SERVICE MANUAL
SC213AYX9PSR/C
MODELS
SPLIT TYPE ROOM AIR CONDITIONER
INDOOR UNIT
OUTDOOR UNIT
MODELS AY-X9PSR
AE-X9PSR
AE-X12PSR
AY-X12PSR
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts
identical to those specified should be used.
CONTENTS
[5]
CHAPTER 1. SPECIFICATION
[1] SPECIFICATION ...........................................1-1
[2] EXTERNAL DIMENSION ..............................1-2
[3] WIRING DIAGRM..........................................1-3
[4] ELECTRICAL PARTS....................................1-4
CHAPTER 2. EXPLANATION OF CIRCUIT AND OPERATION
[1] BLOCK DIAGRAMS ......................................2-1
[2] MICROCOMPUTER CONTROL SYSTEM
........2-3
[3] FUNCTION ..................................................2-18
CHAPTER 3. FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
[1] PROTECTION DEVICE FUNCTIONS AND
OPERATIONS ...............................................3-1
[2] AIR CONDITIONER OPERATION IN
THERMISTOR ERROR.................................3-2
[3] THERMISTOR TEMPERATURE CHARACTERISTICS...............................................3-3
[4] GENERAL TROUBLESHOOTING CHART....3-6
[6]
[7]
MALFUNCTION (PARTS) CHECK METHOD..................................................................3-8
CHART .........................................................3-10
TROUBLE SHOOTING GUIDE ................... 3-11
CHAPTER 4. REFRIGERATION CYCLE
[1] SCHEMATIC DIAGRAM ................................ 4-1
[2] STANDARD CONDITION .............................. 4-1
[3] TEMPERATURE AT EACH PART AND
PRESSURE IN 3-WAY VALVE....................... 4-2
[4] PERFORMANCE CURVES ........................... 4-2
CHAPTER 5. DISASSEMBLY PROCEDURE
[1] INDOOR UNIT ............................................... 5-1
[2] OUTDOOR UNIT ........................................... 5-4
[3] CONTROL BOX............................................. 5-7
CHAPTER 6. OPERATION MANUAL
CHAPTER 7. INSTALLATION MANUAL
PARTS LIST
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP(CHINA)INVESTMENT CO.,LTD
CHAPTER 1. PRODUCT SPECIFICATION
[1] SPECIFICATION
1. AY-X9PSR/AY-X12PSR
MODEL
INDOOR UNIT
OUTDOOR UNIT
AY-X9PSR
ITEMS
AE-X9PSR
INDOOR UNIT
OUTDOOR UNIT
AY-X12PSR
AE-X12PSR
Rated cooling capacity(Min-Max)
kW
2.6(1.00-3.10)
3.5(1.1-3.7)
Rated heating capacity(Min-Max)
kW
2.6(1.0-3.80)
3.5(1.1-4.5)
Moisture removal(at cooling)
Liters/h
0.8
1.0
Single
Single
50
50
Electrical date
Phase
Rated frequency
Hz
V
220-240
220-240
Cool
A
3.5(1.32-5.0)
4.9(1.32-6.1)
Heat
A
3.1(1.32-6.4)
4.6(1.32-7.8)
Cool
W
760(290-1100)
1060(290-1330)
Heat
W
680(290-1400)
1010(290-1700)
Cool
%
94
94
Rated voltage
Rated current(Min-Max)
Rated input(Min-Max)
Power factor
Heat
Maximum operating current
Compressor
%
95
95
A
6.4
7.8
Hermetically sealed ROTARY TYPE
Hermetically sealed ROTARY TYPE
Type
Refrigerant system
Model
DA89M1C-81EZ8
DA108M1C-81EZ8
Oil charge
370ml˄ESTER OIL VG74˅
370ml˄ESTER OIL VG74˅
Evaporator
Louver fin and grooved tube type
Louver fin and grooved tube type
Condenser
Louver fin and grooved tube type
Louver fin and grooved tube type
Control
Microcomputer controlled reverse system
Microcomputer controlled reverse system
Refrigerant(R410A)
750
950
Microcomputer controlled reverse system
Microcomputer controlled reverse system
De-Ice system
Noise Level(at cooling)
High
dB(A)
38
60
38
Low
dB(A)
34
34
Soft
dB(A)
26
26
62
Fan system
Drive
Direct drive
Direct drive
Air flow quantity(at cooling) High
m3/min
11.0
Low
m3/min
8.4
8.4
Soft
m3/min
5.8
5.8
Fan
31.7
Cross flow fan
Propeller fan
11.0
28.3
Cross flow fan
Propeller fan
Connections
Refrigerant coupling
Refrigenrant tube size Gas,Liquid
Drain pipe
Flare tpye
Flare tpye
inch
3/8",1/4"
1/2",1/4"
mm
O.D16
O.D16
Fan motor:thermal fuse
Fan motor:thermal fuse
Fuse,Micro compute control
Fuse,Micro compute control
Polypropylene net(washable)
Polypropylene net(washable)
Others
Safety device
Air filters
Net dimensions
Net/Gross weight
Width
mm
820
700
820
700
Height
mm
280
256
280
256
Depth
mm
kg
183
551
183
551
10/12
24/28
10/12
26/30
1-1
[2] EXTERNAL DIMENSION
INDOOR UNIT
OUTDOOR UNIT
1-2
[3]WIREING DIAGRAM
1.AY-X9PSR/AY-X12PSR
AE-X9PSR/AE-X12PSR
©
Indoor unit
Outdoor unit
1-3
[4]ELECTRICAL PARTS
1.AY-X9PSR/AE-X9PSR
Indoor unit
DESCRIPTION
Indoor fan motor
Main PCB
CODE
REMARKS
1170030067
220V/50Hz
1090260049AA
Display PCB
1090320292
Transformer
1170240024
220V/50/60Hzˈ12V
Vane motor
1170020011
12V
Indoor sensor
1170230001
5k
CODE
REMARKS
Outdoor unit
DESCRIPTION
Power source board
210900163
Inverter module
210900026
Inductor
1171990046
5.0mHˈ10A
outdoor fan motor
1170040126
220V/50Hz
Discharge Temp. sensor
1170230006
2.1k
Pipe Temp. sensor and outdoor Temp. sensor
1170230007
5k
CODE
REMARKS
1170030067
220V/50Hz
2.AY-X12PSR/AE-X12PSR
Indoor unit
DESCRIPTION
Indoor fan motor
Main PCB
1090260049AA
Display PCB
1090320292
Transformer
1170240024
Vane motor
1170020011
12V
Indoor sensor
1170230001
5k
CODE
REMARKS
220V/50/60Hzˈ12V
Outdoor unit
DESCRIPTION
Power source board
210900168
Inverter module
210900026
Inductor
1171990046
5.0mHˈ10A
outdoor fan motor
1170040126
220V/50Hz
Discharge Temp. sensor
1170230006
2.1k
Pipe Temp. sensor and outdoor Temp. sensor
1170230007
5k
1-4
SHARP(CHINA)INVESTMENT CO., LTD
CHAPTER 2.EXPLAMATION OF CIRCUIT AND OPERATTION
[1] BLOCK DIAGRAM
1. INDOOR UNIT
Unit-unit wiring (AC
power and serial
signals)and serial
Indoor/outdoor
control
signals)
LED display board
3.15A fuse
LED Display driver
Overcurrent detection
Zero-crossing detection
Transformer
Power Supply+15V
DC+5V
Reset circuit
Anion driving circuit
CPU
Anion circuit
Outdoor Power control
Power on relay of outdoor unit
of
indoor
Auxiliary driving circuit
Auxiliary circuit
control
unit
Fan speed detection
Indoor fan drive circuit
Indoor fan motor
Buzzer drive circuit
Buzzer
LEV drive circuit
LEV
EEPROM
Room Temp detection circuit
Room temp thermistor
IDU pipe temp detection circuit
IDU pipe temp thermistor
Model selection
Model jumper
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SHARP(CHINA)INVESTMENT CO., LTD
2. OUTDOOR UNIT
LED
Unit-unit wiring
AC Zero-crossing
Programmer port
PFC CPU
(AC power and
PFC IGBT Driving Circuit
serial signals)and
serial signals)
DC +5V2
Bus current detecting circuit
20A FUSE
Filter
PFC enable circuit
Inrush current protection
Crystal oscillator of
LED
Terminal of Compressor
CPU
Compressor over current detection circuit
Compressor phase current detection circuit
Of
Module
PFC Circuit
IPM Module
Bus capacitance
Power supply +15V
Power supply
Board
AC Voltage Detection
Reset circuit
DC
+5V
Programmer port
Bus Voltage detection circuit
COMM
DC +5V
LED
Power on relay driving circuit
Compressor selection
AC detection circuit
EERPOM
Power
Indoor/outdoor control signal
CPU
EEPROM circuit
Of
power
Reset Circuit
Crystal oscillator of
board
SPI Communication
Exhaust
Temp Detection
ODU Ambient
Function select (System
Function select(self
Temp
Compressor shell Temp
ODU pipe Temp
2-2
Fan driving circuit
Fan circuit
4-way valve relay drive
4-way valve
SHARP(CHINA)INVESTMENT CO., LTD
[2] MICROCOMPUTER CONTROL SYSTEM
1. INDOOR UNIT
1.1. Electronic control circuit diagram
AY-X9PSR/AY-X12PSR
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2
AY-X9PSR/AY-X12PSR
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AY-X9PSR/AY-X12PSR
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AY-X9PSR/AY-X12PSR
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1.2. Printed wiring board
Indoor unit
AY-X9PSR/AY-X12PSR
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2. Outdoor unit
2.1. Electronic control circuit diagram
inverter modul board
1
AE-X9PSR/AE-X12PSR
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AE-X9PSR/AE-X12PSR
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AE-X9PSR/AE-X12PSR
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AE-X9PSR/AE-X12PSR
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AE-X9PSR/AE-X12PSR
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POWER SUPPLY BOARD
AE-X9PSR/EX-X12PSR
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AE-X9PSR/EX-X12PSR
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AE-X9PSR/EX-X12PSR
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2.2 Printed wiring board
Inverter module board
AE-X9PSR/AE-X12PSR
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POWER SUPPLY BOARD
AE-X9PSR/AE-X12PSR
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[3] FUNCTION
1. Fuction
1.1. Compressor delay operate
TheOnce the compressor stops operating, it will not restart for 3 minutes
to protect the compressor
.
Therefore, if the operating compressor is shut down from the remote control and then turned back on immediately after, the compressor will restart
after a preset delay time.
z
z
z
z
Air flow direction
Power ON/OFF
Automatic operation mode setting
Swing louvre
1.7.2. Setting not memorized
z Timer setting
1.2. Four-way valve control in heating model
When the unti operates in heating model, the comprassor start-up after
the four-way valve start up for 5 seconds, the four-way valve shut down
after the compressor stops for 2 minutes when the unit shut down
1.4.ON timer
The ON timer can be activated by pressing the ON timer button.when the
ON timer is activated, the operation start time is adjusted base on fuzzy
logic calculations 1hour before the set time so that the room temperature
reaches the set temperature at the set time.
1.7.3. Active auto restart and disabling auto restart
function
If the auto resart wasn’t actived,you can presse the ON/OFF switch
and then supply the power and keep 10 seconds(the buzze sound 3
sounds) to actives it.
Contrary, if the auto restart has actived, you can press the ON/OFF
switch and then supply the power and keep until 4beeps sound to
disable it.
1.8. FULL POWER Operation
1.5. OFF timer
The OFF timer can be activated by pressing the OFF timer button.
z When the OFF timer is set, the operation stops after the set time.
z When the temperature is set during timer setting, the temperature will
show in the display for 5 seconds and then return to the timer display.
The airconditioner works at the maximum power to make the room
cool or warm rapidly
z The remote control will display ”
“ button
z The temperature display will go off.
z The yellow FULL POWER lamp ”
” on.
Timer duration can be set from a minimum half an hour to a maximum
of12 hours. Up to 9.5 hours, you can set in half-hour increments, and
from10 to 12 hours, in 1hour increments.
TO CANCEL
Press the FULL POWER button again.
The yellow FULL POWER lamp ”
” on the unit will turn off
NOTE
z The airconditioner will operate at “Extra HIGH” fan speed for 5
minUtes, and then shift to “HIGH” fan speed.
z You can not set the temperature or fan speed during the FULL
POWER operation.
1.6. ON/OFF operation
If the air conditioner is off, you can pressing the ON/OFF button to
operates cooling or heating mode. Presses the ON/OFF button, when the
buzzer sounds 1 short sound then enter cooling operation, 2 short sounds
enter heating operation, 1 long sound shut down the unit.
1.9. compressor discharge overheat prevevtion control
When the compressor discharge temperatureTP2(95ć), forbid the
frequency raise until the discharge temperature is bellow than TP2
decrease 2ć.
The unit operates in the set mode in the first 10 minutes of ON/OFF
operation, in the first 10 minutes, the indoor fan speed operates on high
speed, the vane swings, the compressor operates at maximum frequency
F4. In cooling operation, the set temperature automatically 1ć lower than
room temp., in heating mode the set temp. automatically 1ć higher than
room temp., then the set temperature set at 23ć after 10 minutes, the
maximum operating frequency is F7.
When the discharge temperatureTP3(100ć), drop the operating
frequency. If discharge temperature is over 105ć, then shut-down
the compressor, outdoor fan motor stop after 15 seconds, when the
discharge temperature˘TP2(95ć) and the compressor is stoped
for 3 minutes, the unit operates again.
1.7.Auto restart
1.10. Voltage prevention
Will automatically restart in the same setting whicth were active before the
power failure.
When the voltage AC 158V, the uint stops and displays the code P1
until the voltage AC162V , when the voltage AC265V and keeps
30 minutes, the unit stops and displays code P1 until the voltage
AC 260V.
1.7.1. Operating mode at auto restart(Cool, Heat, Dry)
z
z
z
1.11. Over current prevention
Temperature adjustment (within 2°C range) automatic operation
Temperature setting
Fan setting
ƽ when the outdoor currentIdrop frequency,the controller
drops1Hz/second until the minimum operation frequency.
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ƽwhen the unit enter drop frequency prevention opreates, if Idrop I
outdoorInormal, the controller limit the operation frequency rise until Ioutdoor˘
Inormal.
ƽ When the outdoor current Imax, the compressor stops and outdoor
motor stops after 15 seconds
about 33°C in order to prevent cold air from blowing into the room.
Also, the indoor unit fan operates at low speed until the temperature ofthe
indoor unit heat exchanger reaches about 37°C so that people inthe room
will not feel chilly air flow.
37ć
temperature
temperature
drop
rise
set fan speed
33ć
low fan speed
1.12. Compressor drive prevention
During the compressor start up or operation, if the signal of the
compressor can’t be checked or check the load is exceptonal or driver fail
then shut down the outdoor unit and displays the fail code.
25ć
34ć
soft
28ć
stop
22ć
1.13. Indoor unit evaporator freeze prevention
1.19. Auto restart
When power failure occurs, after power is recovered, the unit will
automatically restart in the same setting which auto restart function
were active before the power failure, except for timer settings.
When the indoor evaporator temperature IPT4ć and keeps 1 minutes,
the uint enter the evaporator freeze prevention. If the indoor evaporate
temperature IPT-1 ć and remains 5 minutes during cooling or dry
operation, the compressor stops in order to prevent the freezer and
displays code P5.
When the indoor unit evaporator temperature IPT6ć, the compressor
restarts and resumes normal operation.
If a power failure ocurse while the timer is set, the timer setting will
be cancelled and willl not be retrived even after the power is
restored.
1.20. Defrosting
1.14. Outdoor unit overheat prevention
Defrosting is controlled by the microprocessor.
During cooling operation, if the temperature of the outdoor unit
heat-exchanger OPTexceeds the limit frequency rise temperature TOP2,
the contoller limit the operation frequency rise unti the OPT˘TOP2.
1.20.1. conditions of defrosting
The defrost operation starts when the one of the following conditions
is satisfied, the unit will come into defrosting. When the defrost
operation starts, if the indoor excharge temperature less than 34ć,
the indoor unit fan stops.
If if the temperature of the outdoor unit hea-texchanger OPT reach or
exceeds stops unit temperature TOP4, the compressor stop
operating,until OPTTOP1(prevention cancel temperature), the unit
restart and opreates at normal.
1.15. Indoor unit overheat prevention control
a. utdoor heat exchanger Temperature (OPT) is continuously up
to or less than 3ć while the unit runs for more than 40 minutes,
and OPT is keep under -6ć for more than 3 minutes.
b. Outdoor heat exchanger Temperature (OPT) is continuously uo
to or less than 3ć meanwhile the unit runs for more than 80
minutes, and OPT is keep under -4ć for more than 3 minutes.
c. Outdoor heat exchanger Temperature (OPT) is continuously up
to or less than 3ć while the unit runs for more than 120
minutes, and OPT is keep below -2ć for more than 3 minutes.
d. Once in the heating mode, if the outdoor heat excharge
temperature(OPT) keep lower than 0ć and outdoor temperature higher than 3ć, also the compressor operates for more
than 20 minutes and the outdoor heat exchanger Temperature
(OPT) reaches -6ć or less and keeps 3 minutes, enter the first
defrost.
The defrost operation stops when the outdoor unit heat-exchanger
temperature rises to about 15°C or higher or the defrosting time
exceeds 10 minutes.
During heating operation, if the temperature of the indoor unit
heat-exchanger IPT exceeds the limit frequency rise temperature TIP2,
the contoller limits the operation frequency rise unti the IPT˘TIP2.
If the temperature of the outdoor unit heat-exchanger IPT reaches or
exceeds stops unit temperature TIP4, the compressor stops operating
and diplayes code P7,until IPTTIP1(prevention cancel temperature), the
unit restart and opreates at normal.
1.16. IPM pretector
If the IPM checked the temperature itself or current is higher than prevent
temperature or current, the contrller shuts down the outdoor unit and
displays code P0, when the IPM temperature or current drops to lower
than prevention temperature, the outdoor unit restarts and operates at
normal.
1.20.2. Compressor operation frequecy
1.17. Startup control
Before the air conditioner come into defrosting, compressor running
frequen- cy drop down to a lower frequency firstly, then the compressor shuts down.
When the air conditioner starts in the cooling or heating mode, if the room
temperature is 3.5°C higher than the set temperature, the unit operates
with the operating frequency at maximum. Then, when the set
temperature is reached, the unit operates at the operating frequency
determined by fuzzy logic calculation, then enters the normal control
mode after a while.
In defrosting, the max. frequency of compressor is F9, in this period
all protection functions are avaliable.
1.20.3 The part operation order.
1.18. Cold air prevention control
When the air conditioner starts up in heating mode, the indoor unit fanwill
not operate until the temperature of the indoor unit heat excharge reaches
compressor
ON
OFF
4-way valve
ON
OFF
ON
outdoor fan motor OFF
50S 10S
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İ10minutes
15S 15S
SHARP(CHINA)INVESTMENT CO.,LTD
z If the “AUTO” mode operates in DRY , the set temperature and
the fan speed can’t changed.
1.22. Airflow control
1.21. Information about auto mode.
In the AUTO mode, the temperature setting and mode are automatically
selected according to the room temperature when the unit is turned on.
Model
z
Initial Room Temerature
Initial Set Temperature
COOLING
RT26ć
23ć
DRY
26ć˚RT20ć
RT-2
HEATING
RT˘20ć
23ć
FAN
RT˘20ć
-
ƽ Press the SWING button, the vetical air flow louver will swing.
ƽ Press the SWING button again to stop at the desired position.
In the “AUTO”model, when the controller receives the up or down
singnals of temperature from remote control, the set temperature
can be adjusted by 1ćupper or lower. The maximum you can
adjust by 2ć upper or lower.
1.23. Difference relating to set temperature
Temperature
setting
method
Auto mode
Cooling
Heating
Drying
Automatic temperature setting based on outside air
temperature. Can be changed within ±2°C using remote
con-trol.
Cooling
Can be changed
between 18 and 32°C
using remote control.
Manual mode
Heating
Can be changed
between 18 and
32°C using remote
control.
Drying
Automatic setting.
Can be changed
within±2°C.
1.24. Drying operation control
When the unit operates in drying mode, the set temperature is set and keep at room temperature decrease 2°C , and you can not adjusted it.
2. Outline of PWM (Pulse Width Modulation) circuit
2.1. Power Factor Correction(PFC)
The PFC circuit varies the compressor drive voltage and controls the rotation speed of the compressor.
The IGBT shown in the block diagram charges the energy (electromotive force) generated by the reactor to the electrolytic capacitor for the inverter by
turning ON and OFF.
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When the IGBT is ON, an electric current flows to the IGBT via the reactor.
When the IGBT turns OFF, the energy stored while the IGBT was ON is charged to capacitor.
As such, by varying the ON/OFF duty of the IGBT, the output voltage is varied.
This circuit brings the operating current waves form closer to the waveform of commercial power supply voltage to maintain a high power factor.
Because of the capacitor input, when the PFC circuit is OFF, the phase of the current waveform deviates from the voltage waveform.
The IGBT turns ON after the time length determined by the zero-cross point to supply a current to the IGBT via the reactor.
This brings the current waveform closer to the voltage wave form in phase.
As described above, the ON/OFF operation of the IGBT controls maintain a high power factor by keeping the current phase closer to that of the supply
voltage.
2.2 Detailed explanation of PFC drive circuit sequence
t0~t1: IGBT Off, to detect the voltage Zero-crossing;
t1~t2: IGBT PWM (20KHz), to improve current waveform closer to voltage waveform;
t2~t3: IGBT Off;
t3~t4: IGBT PWM (20KHz), to improve current waveform closer to voltage waveform;
t4~t5: IGBT Off, to detect the voltage Zero-crossing;
The detected clock waveform is used to judge the power source frequency (50Hz/60Hz).
3. Explanation of IPM drive circuit
The IPM for compressor drive is made by Fairchild.
The power supply for the IPM drive, the shunt resistance for over current detection, etc., are provided outside the IPM (control PCB).
3.1. IPM drive power supply circuit
The power supply for the upper-phase IGBT (HU, HV, HW) drive employs a bootstrap system, and provides power to the upper-phase IC.
The 15-V power supply for the lower-phase IC is provided by the control printed circuit board (PCB).
3.1.1 Brief explanation of bootstrap system (single power drive system)
To supply power to the upper-phase IC, the microcomputer (IC1) turns ON the lower-phase IGBT (LU, LV, LW).
This results in a charging current that flows to the electrolytic capacitor of each upper-phase IC input and charges the bootstrap capacitor with a 15V
current
The power supply for the subsequent stages is charged while the lower-phase IGBT is ON in ordinary compressor drive control.
-Bootstrap Circuit Design
Operation of Bootstrap Circuit
The VBS voltage difference between VB(U,V,W) and VS(U,V,W), provides the supply to the HVIC within the Mini-DIP SPM package family in Motion-SPM
products. This supply must be in the range of 13.0V~18.5V to ensure that the HVIC can fully drive the high-side IGBT. The Mini-DIP SPM package
includes an under-voltage lockout protection for the VBS to ensure that the HVIC does not drive the high-side IGBT, if the VBS voltage drops below a
specific voltage(refer to the datasheet).This function prevents the IGBT from operating in a high-dissipation mode.
The VBS Floating supply can be generated a number of ways, including the bootstrap method described here (refer to Figure 34).This method has the
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advantage of being simple and inexpensive; however, the duty cycle and on-time are limited by the need to refresh the charge in the bootstrap capacitor.
The bootstrap supply is formed by a combination of and bootstrap diode, resistor, and capacitor as shown in Figure35 and Figure36. The current flow path
of the bootstrap circuit is show in Figure 35. When Vs is pulled down to ground (either through the low-side or the load), the bootstrap capacitor CBS) is
charged through the bootstrap diode (DBS) and the resistor (RBS) from the VCC supply.
(Figure 34)
(Figure 35)
(Figure 36)
3.1.2
Compressor over current detection circuit
When a current of about 25 A or higher flows through the shunt resistance (R638,R642,R644) on the control printed circuit board (PCB), the voltage at
this resistance is input to IPM CSC pin (8). Then the gate voltage of the lower-phase IGBT (LU, LV, LW) inside the IPM turns OFF to cut off the over
current. At the same time, an L output of about 2ms is generated from IPM VFO pin (6), and this results in an L input to overcurrent detection input VFO of
the microcomputer
and turns OFF the PWM signal output
through
to the IGBT gate.
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CHAPTER 3. FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
[1] PRETECTION DEVICE FUNCTIONS AND OPERATIONS
Self-daignosis
result display
Operation
FUNTION
Detection
period
Description
1
Compressor
Discharge temperatureTP2
When
discharge over heat
(95ć), forbid the frequency
compressor
shut-down
raise.
in
Reset condition
Discharge
is
operation
temperature
P4
none
yes
none
none
none
P1
none
yes
P1
none
yes
P2
none
yes
Operation offf of on
P9
none
yes
P5
none
yes
none
yes
P7
yes
none
P0
none
yes
Operation OFF or ON
E3
yes
yes
Operation OFF or ON
E8
yes
yes
is below than TP2-2ć.
Discharge
temperature
Discharge temperatureTP3
˘ TP2(95ć).
(100ć),drop
Discharge
the
operating
Indoor unit Indoor Outdoor
unit
error display unit
temperature
frequency. If discharge tem-
˘ TP1(90ć) and after
perature over 105ć, shut-
compressor stops for 3
down the compressor,outdoor
minutes.
fan motor stops after
15 seconds.
2
Compressor
delaye
operation
3
Lower
voltage
preventiion
4
5
The
When the com-
The compressor stops
minutes to restart
compressor delayes 3
pressor stopes
for 3 minutes
The
When the unit in
When
unit
stops if AC 158V
Higher
voltage
The
AC162V
operation
unit
stops
if
When the mach-
preventiong
AC265V
Over current
When the outdoor current
When
Imax,the
machine
When
AC260V
ine in operation
compressor
stops
and outdoor motor stops after
the
in
When
the
outdoor
current˘I normal
operation
15 seconds
6
Compressor drive
If the system can’t check the
When the com-
feed-back signal of compress-
pressor drives or
or or load is
operates.
exceptonal or
driver fail then
the
7
shut down
outdoor unit
Indoor unit evaporator
Compressor stops if indoor
When in cooling
Automatic reset when
frezze prevention
pipe temperature IPT-1 ć
or dehumidifying
indoor pipe temperature
and remains 5minutes
operation
IPT 6 ć and remains
When the unit in
When the outdoor pipe
P6 outdoor
operation
temperature OPTTOP1
light
10 minutes
8
Outdoor unit overheat
Compressor
shtops
if
the
prevention
outdoor unit
heatexchanger
temperature OPTTOP4
9
flash
5cycle
Indoor unit overheat
Compressor stops if indoor
When the unit is
When the indoor pipe
prevention
exchaege
in operation
temperature IPTTIP1
IPM pretector
The outdoor unit shutt down if
When the unit is
When the IPM chck the
the
in operation
temperature of IPM itself
temperature
IPTTIP4
10
IPM
checks
temperature of IPM itself
the
or
or the current fall to
the current is too high
11
Outdoor
unit
normal
heat
Indoor and outdoor unit stops
At
exchanger thermistor
if there is short-circuit or
startup
short-circuit
compressor
break in outdoor unit heat
exchanger thermistor
12
Outdoor unit outside
Indoor and outdoor unit stops
At
air temperature ther-
if there is short-circuit or
startup
mistor
error
open-circuit
compressor
break in outdoor unit heat
exchanger thermistor
3-1
SHARP(CHINA)INVESTMENT CO.,LTD
Detection
period
Description
13
unit
Indoor and outdoor unit stops
At
thermistor
if there is short-circuit or
startup
Outdoor
discharge
Indoor unit Indoor Outdoor
error display unit
unit
Reset condition
compressor
Operation OFF or ON
E3
yes
yes
Operation OFF or ON
E8
yes
yes
Operation OFF or ON
E8
yes
yes
Operation OFF or ON
E8
yes
yes
Reset after reception of
E0
yes
yes
EF
yes
yes
break in outdoor unit heat
open-circuit error
exchanger thermistor
14
15
Outdoor unit outside
Indoor and outdoor unit stops
At
air
if there is short-circuit or
startup
temperature
ther-mistor
break in outdoor unit heat
short-circuit error
exchanger thermistor
Discharge
compressor
pipe
Indoor and outdoor unit stops
At
temperature themister
if there is short-circuit or
startup
short-circuit error
compressor
break in outdoor unit heat
exchanger thermistor
16
Discharge
pipe
Indoor and outdoor unit stops
At
temperature themister
if there is short-circuit or
startup
open-circuit error
compressor
break in outdoor unit heat
exchanger thermistor
17
Serial signal error
Indoor and outdoor unit stops
When
if outdoor unit cannot receive
operation
in
serial signal
serial signal from indoor unit
for 2minutes.
18
Outdoor unit DC fan
Operation stops if there is no
When
error
input of rotation pulse signal
unit
from out-door unit fan motor
operation
outdoor
fan
is
Operation OFF or ON
in
for 30 seconds
[2] AIR CONDITIONER OPERATION IN THERMISTOR ERROR
1. Indoor unit
Item
Mode
Control
operation
Room tempe-
Auto
Operation
rature ther-
mode
judgment
mistor (TH1)
When resistance is
low (tempera-ture
judged higher than
actual)
Short-circuit
When resistance
is high (temperature judged lower
than actual)
Open-circuit
Cooling
The unit stops
Heating
The unit stops
mode
is
activated even if room
temperature is low.
Cooling
Frequency conRoom temperature
is
temperature is high.
Room becomes too cold
The unit stops
trol
Dehumidifying
mode
activated even if room
Room
does
not
The unit stops
become cool.
Normal operation.
The unit stops
Normal operation.
The unit stops
Room does not become
The unit stops
Room becomes too
The unit stops
memory frequency
control
Heating
Frequency control
warm
Heat exchanger
Cooling
thermistor (TH2)
Drying
Heating
Freeze prevention
warm.
Indoor unit evaporator
The unit stops
may freeze.
Cold air prevention
Cold
air
deactivates
Compressor
stops
The unit stops
prevention
The unit stops
occasionally.
prevention
too
soon
and cold air discharges.
2. Outdoor unit
3-2
The unit stops
Cold
air
deactivates too slow.
SHARP(CHINA)INVESTMENT CO.,LTD
Item
Compressor
discharge
pipe
thermistor (TH1)
Mode
Control
operation
Cooling
Expansion
Dyring
control
Heating
compressor
valve
and
When resistance is
low (tempera-ture
judged higher than
actual)
Short-circuit
When resistance
is high (temperature judged lower
than actual)
Open-circuit
Compressor
Compressor
Layer short-circuit or
Compressor
but
room
operates,
does
not
become cool or warm
protection
discharge
pipe
open-circuit
may
discharge pipe
temperature
result in compres-sor
temperature
error indica-
in normal oper-ation.
error indica-
Normal operation.
Outdoor
tion.
tion.
Heat exchanger
Cooling
Outdoor unit heat
Compressor operates at
Outdoor unit
thermistor (TH2)
Drying
exchanger
low speed or stops.
thermistor short-
thermistor
circuit error
open-circuit
over
heat prevention
indication.
Heating
Expansion
valve
control Defrosting
Defrosting operation is
Outdoor
not activated as needed,
thermistor
unit
error indication.
unit
Defrosting operation
Outdoor
is activated unnece-
thermistor
short-circuit
and frost accumulates
short-circuit error
ssarily,
on outdoor unit
indication.
does
and
not
room
become
unit
error indication.
warm
Outside
air
Auto
temper-ature
Operation
mode
judgement
Cooling
mode
is
activated even if room
thermistor (TH3)
temperature is low.
Cooling
Operation
Drying
affected
not
Normal operation.
Outdoor
unit
thermistor
Heating
activated
mode
is
Outdoor
even
if
thermistor
short-circuit error
room temperature is
indication.
high.
error indication.
Normal operation.
Outdoor
Outdoor
unit
thermistor short
-circuit
open-circuit
unit
thermistor open
error
-circuit
indication.
Heating
unit
error
indication.
Rating
Defrosting operation is
Outdoor
Defrosting operation
Outdoor
controlDefrosting
activated unnecessarily.
ther-mistor short
is not activated, and
thermistor
-circuit
frost accumulates on
open-circuit
outdoor unit.
error indication.
indication.
unit
error
unit
[3] THERMISTOR TEMPERATURE CHARACTERISTICS
1. Indoor unit and outdoor exchange temperature and outside air temperature thermistor temperature characteristics
Resistance
Votalge of
TEMP.
(k Ohm)
resisitance
-30
63.513
-29
Resistance
Votalge of
(k Ohm)
resisitance
Resistance
Votalge of
TEMP.
(k Ohm)
resisitance
TEMP.
4.628
15
7.447
2.968
60
1.464
1.115
60.135
4.609
16
7.148
2.918
61
1.418
1.088
-28
56.956
4.589
17
6.863
2.868
62
1.374
1.061
-27
53.963
4.568
18
6.591
2.819
63
1.331
1.035
-26
51.144
4.547
19
6.332
2.769
64
1.290
1.009
-25
48.488
4.524
20
6.084
2.720
65
1.250
0.984
-24
45.985
4.501
21
5.847
2.671
66
1.212
0.960
-23
43.627
4.477
22
5.621
2.621
67
1.175
0.936
-22
41.403
4.452
23
5.404
2.572
68
1.139
0.913
-21
39.305
4.426
24
5.198
2.524
69
1.105
0.890
-20
37.326
4.399
25
5.000
2.475
70
1.072
0.868
-19
35.458
4.371
26
4.811
2.427
71
1.040
0.847
-18
33.695
4.343
27
4.630
2.379
72
1.009
0.825
-17
32.030
4.313
28
4.457
2.332
73
0.979
0.805
-16
30.458
4.283
29
4.292
2.285
74
0.950
0.785
-15
28.972
4.252
30
4.133
2.238
75
0.922
0.765
-14
27.567
4.219
31
3.981
2.192
76
0.895
0.746
32
3.836
2.146
77
0.869
0.728
-13
26.239
4.186
3-3
SHARP(CHINA)INVESTMENT CO.,LTD
Resistance
Votalge of
TEMP.
(k Ohm)
resisitance
-12
24.984
-11
Resistance
Votalge of
TEMP.
R(k Ohm)
resisitance
2.101
78
0.843
0.710
2.057
79
0.819
0.692
Resistance
Votalge of
TEMP.
(k Ohm)
resisitance
4.152
33
3.697
23.795
4.117
34
3.563
-10
22.671
4.082
35
3.435
2.012
80
0.795
0.675
-9
21.606
4.045
36
3.313
1.969
81
0.773
0.658
-8
20.598
4.008
37
3.195
1.926
82
0.751
0.641
-7
19.644
3.969
38
3.082
1.883
83
0.729
0.625
-6
18.732
3.930
39
2.974
1.842
84
0.709
0.610
-5
17.881
3.890
40
2.870
1.800
85
0.689
0.595
-4
17.068
3.850
41
2.770
1.760
86
0.669
0.580
-3
16.297
3.808
42
2.674
1.720
87
0.651
0.566
-2
15.565
3.766
43
2.583
1.681
88
0.633
0.552
-1
14.871
3.723
44
2.494
1.642
89
0.615
0.538
0
14.212
3.680
45
2.410
1.604
90
0.598
0.525
1
13.586
3.635
46
2.328
1.567
91
0.582
0.512
2
12.991
3.590
47
2.250
1.530
92
0.566
0.499
3
12.426
3.545
48
2.174
1.495
93
0.550
0.487
4
11.889
3.499
49
2.102
1.459
94
0.535
0.475
5
11.378
3.452
50
2.032
1.425
95
0.521
0.463
6
10.893
3.406
51
1.965
1.391
96
0.507
0.452
7
10.431
3.358
52
1.901
1.357
97
0.493
0.441
8
9.991
3.310
53
1.839
1.325
98
0.480
0.430
9
9.573
3.262
54
1.779
1.293
99
0.467
0.419
10
9.174
3.214
55
1.721
1.262
100
0.455
0.409
11
8.795
3.165
56
1.666
1.231
12
8.433
3.116
57
1.613
1.201
13
8.089
3.067
58
1.561
1.172
14
7.760
3.017
59
1.512
1.143
Resistance at 2ć 5 k.
TH1: indoor room temperature thermistor and outside air temperature thermistor
TH2: indoor exchange temperature themistor and outside exchange temperature thermistor
Before measuring resistance,disconnect connectors as shown above.
2. Outdoor unit thermistor temperature characteristics
3-4
SHARP(CHINA)INVESTMENT CO.,LTD
Rmin
R(t)
Rmax
Rmin
R(t)
Rmax
Rmin
R(t)
Rmax
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
-30
283.3
322.9
367.7
24
19.36
20.89
22.52
78
2.563
2.654
2.745
-29
267.4
304.4
346.3
25
18.55
20
21.54
79
2.481
2.567
2.654
-28
252.5
287.1
307.4
26
17.77
19.14
20.6
80
2.402
2.484
2.567
-27
238.5
270.9
307.4
27
17.03
18.32
19.7
81
2.327
2.404
2.483
-26
225.4
255.7
289.8
28
16.32
17.55
18.85
82
2.254
2.327
2.401
-25
213.1
241.4
273.3
29
15.65
16.81
18.04
83
2.183
2.253
2.323
-24
201.5
228
257.9
30
15
16.1
17.27
84
2.115
2.182
2.248
-23
190.6
215.5
243.4
31
14.39
15.43
16.54
85
2.05
2.113
2.176
-22
180.3
203.6
229.8
32
13.81
14.79
15.34
86
1.985
2.047
2.109
-21
170.7
192.5
217
33
13.25
14.18
15.17
87
1.922
1.983
2.045
-20
161.6
182.1
205
34
12.72
13.6
14.54
88
1.861
1.922
1.983
-19
153.1
172.3
193.7
35
12.21
13.05
13.93
89
1.802
1.862
1.923
-18
145
163.1
183.2
36
11.72
12.52
13.36
90
1.746
1.805
1.865
-17
137.5
154.4
173.2
37
11.26
12.01
12.81
91
1.692
1.75
1.809
-16
130.3
146.2
163.9
38
10.82
11.53
12.29
92
1.639
1.697
1.755
-15
123.6
138.5
155.1
39
10.29
11.07
11.78
93
1.589
1.646
1.703
-14
117.3
131.3
146.8
40
9.986
10.63
11.31
94
1.54
1.596
1.653
-13
111.3
124.4
139
41
9.6
10.21
10.85
95
1.493
1.549
1.604
-12
105.6
118
131.7
42
9.231
9.813
10.42
96
1.448
1.502
1.558
-11
100.3
111.9
124.7
43
8.878
9.43
10
97
1.404
1.458
1.512
-10
95.24
106.2
118.2
44
8.54
9.064
9.612
98
1.362
1.415
1.469
-9
90.49
100.8
112.1
45
8.217
8.714
9.233
99
1.321
1.373
1.426
-8
85.99
95.68
106.3
46
7.908
8.38
8.872
100
1.284
1.335
1.387
-7
81.75
90.86
100.8
47
7.612
8.06
8.526
101
1.245
1.296
1.348
-6
77.74
86.31
95.74
48
7.328
7.754
8.196
102
1.209
1.258
1.309
-5
73.94
82.01
90.88
49
7.057
7.461
7.88
103
1.173
1.222
1.272
-4
70.35
77.95
86.29
50
6.797
7.18
7.578
104
1.139
1.187
1.236
-3
66.96
74.11
81.96
51
6.548
6.912
7.289
105
1.105
1.153
1.202
-2
63.74
70.48
77.87
52
6.309
6.655
7.013
106
1.073
1.12
1.168
-1
60.69
67.05
74
53
6.08
6.409
6.748
107
1.042
1.089
1.136
0
57.81
63.8
70.34
54
5.861
6.173
6.495
108
1.013
1.058
1.104
1
55.08
60.72
66.88
55
5.651
5.947
6.253
109
0.9833
1.028
1.074
2
52.49
57.81
63.61
56
5.449
5.73
6.02
110
0.9553
0.9997
1.045
3
50.03
55.05
60.52
57
5.255
5.522
5.798
111
0.9283
0.9719
1.016
4
47.71
52.44
57.59
58
5.07
5.323
5.585
112
0.9021
0.9451
0.9892
5
45.5
49.97
54.82
59
4.891
5.132
5.381
113
0.8765
0.9191
0.9626
6
43.41
47.62
52.2
60
4.72
4.949
5.101
114
0.8524
0.894
0.9367
7
41.42
45.4
49.71
61
4.556
4.774
4.997
115
0.8087
0.8595
0.9117
8
39.53
43.2
42.33
62
4.398
4.605
4.817
116
0.8059
0.8461
0.8875
9
37.74
41.29
45.12
63
4.247
4.448
4.644
117
0.7837
0.8233
0.8641
10
36.04
39.39
43.01
64
4.101
4.288
4.479
118
0.7623
0.8012
0.8413
11
34.42
37.59
41
65
3.961
4.139
4.32
119
0.7415
0.7798
0.8193
12
32.89
35.87
39.1
66
3.827
3.995
4.167
120
67
3.698
3.858
4.021
121
0.702
0.7386
0.7773
13
31.43
34.25
37.29
3-5
SHARP(CHINA)INVESTMENT CO.,LTD
Rmin
R(t)
Rmax
Rmin
R(t)
Rmax
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
14
30.04
32.71
15
29.72
31.24
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
35.58
68
33.95
69
70
3.339
16
Rmin
R(t)
Rmax
TEMP.
(k Ohm)
(k Ohm)
(k Ohm)
122
0.6631
0.7195
0.7572
123
0.6649
0.7007
0.7378
3.476
3.616
124
0.6472
0.6824
0.7189
17
71
3.229
3.359
3.491
125
0.6301
0.6647
0.7006
18
25.13
27.26
29.55
72
3.122
3.246
3.372
126
0.6135
0.6476
0.6829
19
24.05
26.07
28.23
73
3.02
3.138
3.257
127
0.5974
0.6309
0.6657
20
23.02
24.93
26.97
74
2.921
3.033
3.146
128
0.5818
0.6148
0.649
21
22.04
23.84
25.77
75
2.827
2.933
3.04
129
0.5667
0.5991
0.6328
22
21.1
22.81
24.63
76
2.735
2.836
2.938
130
0.5521
0.5839
0.6171
23
20.21
21.83
23.55
77
2.647
2.743
2.84
R—Resistance
Rrsistance at 25ć20 k
TH3: Outdoor unit discharge pipe thermistor
Before measuring resistance,disconnect connectors as shown above.
[4] GENERAL TROUBLESHOOTING CHART
1. Indoor unit does not turn on
Main cause
Cracked PCB.
Inspection method
Normal value/condition
Check visually.
There should be no cracking in
(Cracked pattern)
Open-circuit in FU1 (250 V, 3.15A).
Remedy
Replace PCB.
PCB or pattern.
Check melting of FU1.
There should be no open-circuit.
Replace PCB.
2. Indoor unit fan does not operate
Main cause
Inspection method
Open-circuit in heat exchanger ther-
Measure
mistor (TH2)
(dismount for check).
thermistor
Normal value/condition
resistance
Refer to themistor temperature
Remedy
Replace thermistor.
characteristic
There should be no open-circuit
Replace thermistor.
or faulty contact.
Disconnected heat exchanger ther-
Inspect connector on PCB.Check
Thermistor
mistor (TH2)
thermistor installation con-dition.
disconnected.
3. Indoor unit fan speed does not change
3-6
should
not
be
Install correctly.
SHARP(CHINA)INVESTMENT CO.,LTD
Main cause
Inspection method
Remote control not designed to allow
Normal value/condition
Fan speed should change ex-
Check operation mode.
fan speed change.
Remedy
Explain to user.
cept during dehumidifying operation, sleep operation,internally
normal operation
4. Remote control signal is not received
Main cause
Inspection method
Batteries at end of service life.
Normal value/condition
2.5 V or higher (two batteries in
Measure battery voltage.
Remedy
Install new batteries.
series connection)
Batteries installed incorrectly.
As
Check battery direction.
Lighting fixture is too close, or
Turn off light and check.
fluorescent lamp is burning out.
indicated
on
battery
Install batteries in indicated
compartment.
direction.
Signal should be received when
Change light position or install
light is turned off.
new fluorescent lamp.
Operate within range specified in
Signal should be received within
Explain appropriate handling
inap-propriate.
manual.
range specified in manual.
to user.
Open-circuit or short-circuit in wiring
Check if wires of light receiving
Wires of light receiving section
Replace
of light receiving section.
section are caught.
should not have any damage
receiving section.
Defective light receiving unit.
Check signal receiving circuit
Operating
position/angle
is
wires
of
light
caused by pinching.
Tester indicator should move
Replace PCB.
when signal is received.
Dew condensation on light receiving
Check for water and rust.
unit.
Signal should be received within
Take moisture-proof measure
range specified in manual.
for lead wire outlet of light
receiving section.
5. Vane do not move
Main cause
Caught in sliding section.
Inspection method
Normal value/condition
Operate to see if vane are caught
Vane should operate smoothly.
in place.
Disconnected connector (CN5 on
Remove or correct catching
section.
Inspect connectors.
Connectors or pins should not
relay PCB, louver motor side)
Contact of solder on PCB(connector
Remedy
Install correctly.
be disconnected.
Check visually.
There should not be solder
section on PCB)
Correct contacting section.
contact.
6. Compressor does not start
Main cause
Erroneous inter-unit connection.
DamageD IPM
Main cause
Blown outdoor unit fuse.
Inspection method
Normal value/condition
Check wiring between indoor and
Terminal board 1-N: 230 VAC,
outdoor units.
50 Hz
Check IPM continuity
Remedy
Correct wiring.
Replace IPM
Inspection method
Normal value/condition
Check 20-A fuse.Check 15-A fuse.
Fuse should not be blown.
Remedy
Replace fuse.
Replace outdoor unit PWB
assembly.
Power supply voltage is too low.
Measure power supply voltage
220±
10 VAC, 50 Hz
during startup.
Compressor lock.
Make sure that power supply
voltage is 198 V or higher.
Supply current and touch com-
Compressor should start nor-
Apply
pressor cover (sound absorbing
mally.
compressor.Replace
material) to check if operation
starts.
3-7
external
compressor.
impact
to
SHARP(CHINA) INVESTMENT CO., LTD
[5] MALFUNCTION (PARTS) CHECK METHOD
1. Procedure for determining defective outdoor unit IPM/compressor
The following flow chart shows a procedure for locating the cause of a malfunction when the compressor does not start up and a DC overcurrent
indication error occurs.
Use the remote operate
the air conditioner
No
P9
Compressor starts up
No
conector right
Yes
Does low or high press valve
conectes wire
again
Yes
No
Open
open
Does indoor unit LED
Does the wire
Does
d compressor start up
Yes
Yes
display error code
No
Replace
the
Operates again after 3 mins
inverter PCB
No
Yes
Normal
Normal
Replace compressor
No
P0
Does
the
wire
No
conectes wire
Does compressor start
conector right
agrin
Yes
Clean
indoor
heat
excharge or outdoor
No
Check indoor heat excharge
and outdoor heat excharge
Check
the
refrigerant
the
installation
amount
Check
condition
Installation again
3-8
Normal
Replace the inverter PCB
SHARP(CHINA) INVESTMENT CO., LTD
6. DC Over Current Error
error memory isrecorded.
Start
Are valves(2-way and
Yes
3-way) close?
Fully open stop valves
Does compressor rotate?
No
Yes
Does compressor rotate more
Yes
than 30 seconds?
No
Is IPM PWB floating from the
Yes
heat sink?
No
Check IPM lead
Fix IPM PWB with screws securely.
Abnormal
wire.(UVW)
Check the AC power supply
normal
Modify the connection of compressor
voltage when compressor
lead wire on PWB.
rotate.(rated voltage±10%)
normal
Check IPM short
Abnormal
circuit.
Yes
Replace P WB.
Cooling mode?
normal
No
Heating mode
Check
compressor
Check outdoor exchanger
termistor and discharge
thermistor.
Abnormal
terminal.
normal
Modify compressor terminal marking.
Check indoor exchanger
thermistor and discharge
thermistor.
Abnormal
Modify or replace termistor.
Modify or replace termistor.
Replace PWB
normal
Check outdoor heat
Check indoor heat
exchanger.
Does
Abnormal
exchanger.
compressor
Clean indoor heat
rotate?
Clean indoor heat exchanger.
normal
No
Check the refrigerant amount.
Replace Compressor
Check the discharge pressure.
3-9
Check the installation condition.
exchanger.
SHARP(CHINA)INVESTMENT CO.,LTD
[6] CHART
1.
The failure code display(indoor unit)
Fault Type
2.
Function Indicator lamp
Digital LED display
Indoor/out door c ommunication fault
RUN&POWER: ON
E0
(Flashing)
Outdoo r commu nication fault
RUN&POWER: ON
EC
(Flashing)
Room temperature sensor (IRT)
RUN&POWER: ON
E1
(Flashing)
Indoor pipe (coil) temperature sensor (IPT)
RUN&POWER: ON
E2
(Flashing)
Outdoor pipe (coil) temperature sensor (OPT)
RUN&POWER: ON
E3
(Flashing)
Model configuration wrong
RUN&POWER: ON
E5
(Flashing)
Indoor fan motor fault
RUN&POWER: ON
E6
(Flashing)
Outdoor air temperature sensor
RUN&POWER: ON
E7
(Flashing)
Discharge temperature sensor
RUN&POWER: ON
E8
(Flashing)
IPM of drive and module fault
RUN&POWER: ON
E9
(Flashing)
Outdoor fan motor fault (DC Motor)
RUN&POWER: ON
EF
(Flashing)
Curre nt sensor f ault
RUN&POWER: ON
EA
(Flashing)
EEPROM fault
RUN&POWER: ON
EE
(Flashing)
Temperature switch fault (on top of the compressor)
RUN&POWER: ON
EP
Voltage sensor f ault
RUN&POWER: ON
EU
(Flashing)
(Flashing)
Intake temperature sensor
RUN&POWER: ON
EH
(Flashing)
The failure code display
2.1. Outdoor power supply PCB (The lamp on the outdoor PCB)
Blink times(n)
Fault Message
Blink times(n)
1
IPM protection
17
2
Overvoltage / un dervoltage
18
Fault Message
Defrost state
Short-circuit / open-circuit fault of intake temperature
sensor
3
Over current
19
Outdoor EEPROM fault
4
Exhaust overtemperature protection
20
Outdoor fan motor protection
5
Outdoor coil overtemperature protection
21
Indoor fan motor protection
6
Drive faulture protection
23
System in shortage of Freon
7
Communication fault with indoor unit
24
Model configuration wrong
8
Compressor overheat fault (compressor
25
Indoor sensor fault
26
Indoor coil sensor fault
27
Indoor EEPROM fault
28
Indoor fan motor fault
top switch)
9
Short-circuit / open-circuit fault of outdoor
temperature sensor
10
Short circuit / open-circuit fault of outdoor
heat exchanger temperature sensor
11
Short-circuit
/
open-circuit
fault
of
discharge temperature sensor
12
Voltage sensor fault
30
Outdoor drive fault
13
Current sensor fault
31
Outdoor environmental Overtemperature/
14
IPM fault
32
Indoor coil defors t prevention
33
Indoor coil overheating protection
undertemperature protection
15
communication
fault
between
power
source board and intelligent power module
16
No feedback from DC fan motor(outdoor
unit)
3-10
SHARP(CHINA)INVESTMENT CO.,LTD
2.2. Outdoor IPM
Flash times(n)
Fault Message
Blink times(n)
Fault Message
1
IPM protection/fa ilture
13
The phase current of compressor failture
2
DC overhigh/lower voltage
15
communication fault between power source board
and intelligent power module
3
Overcurrent of compressor
Display on outdoor power source board: The indicator alerts the fault in a cycle as such that it is bright for 0.5 seconds, dark for 0.5
seconds, flases”n” times and then dark for 3 seconds.
2.3. Protection Code
Protection Type
Function Indicator (flash)
Digital LED display
Overvoltage / un dervoltage prot e c tion
RUN: Flaring ; TIMER: 1 time /8 sec
P1
Overcurrent protection
RUN: Flaring; TIMER: 2 times /8 sec
P2
Exhaust overtemperature protection
RUN: Flaring; TIMER: 4 times /8 sec
P4
Subcooling protection under cooling mode
RUN: Bright; TIMER: 5 times /8 sec
P5
Overheating protection under cooling mode
RUN: Bright; TIMER: 6 times /8 sec
P6
Overheating protection under heating mode
RUN: Bright; TIMER: 7 times /8 sec
P7
Outdoor over/ under temperature protection
RUN: Bright; TIMER: 8 times /8 sec
P8
Drive protection (software control )
RUN: Flaring; TIMER: 9 times /8 sec
P9
Module protection (hardware control)
RUN: Flaring; TIMER: 10 times /8 sec
P0
[7] Trouble shooting Guide
According to the fault code
1. Display E1 or E2
Problem symptom
Display E1 o r E2
Cause
Room
temperature
thermistor
(IRT)
and
Indoor
exchange
temperature thermistor (IPT) fault
Malfunction No.
1
Content of diagn osis
Action
Contact between indoor room and
exchange
Insert again if loose.
temperature thermistor CN6 (RT, IPT) and slot
2
Measure the resistance on the two ends of indoor
Replace the temperature sensor if the resistance is incurred to drift,
temperature
open or short circuiting.
sensor:
(25ć/
5k).
For
other
resistance, please refer to the temperature –
Resistance Sheet
3
If the above testing is normal
Replace the indoor control board
3-11
SHARP(CHINA)INVESTMENT CO.,LTD
2. Display E6
Problem symptom
Display E6
Cause
Indoor fan motor fault
Malfunction No.
Content of diagn osis
Action
1
Check the indoor cross-flow fan blade
If the fan does not run, readjust the fan position until it can run
2
If the motor insert (CN3, CN4) on indoor main PCB is in
Insert again if loose.
smoothly.
good contact with the slot
3
Startup capacitance value
Capacitance incorrect. Replace with a new capacitor.
4
The above inspe c tions are normal
Replace the indo or main PCB
3. Display E3, E7, E8
Problem symptom
Display E3, E7, E8
Cause
Outdoor exchange temperature thermistor and outdoor air
temperature thermistor and discgarge temperature sensor fault
Malfunction No.
1
Content of diagn osis
Action
If the temperature sensor on outdoor power source
Insert again if loose.
board is in good contact with the slot (CN1, CN2)
2
Measure the resistance on the two ends of outdoor
Replace the temperature sensor if the resistance is incurred to
drift, open or short circuiting.
temperature thermistor:
Resistance of CN1 terminal thermistor (25ć / 5k). For
other resistance, please refer to the temperature –
Resistance
Sheet.
Resistance
of
CN2
terminal
thermistor(25ć / 20k). For other resistance, please
refer to the discharge temperature thermistor resistance
sheet.
3
If the above testing is normal
Outdoor power source board
4. Display EA
Problem symptom
Display EA
Cause
Malfunction No.
1
Current sensor fault
Content of diagn osis
Action
Check for refrigerant leakage
Find the leakage point and recharge the refrigerant
Replace the outdoor power source board
3-12
SHARP(CHINA)INVESTMENT CO.,LTD
5. Display EC
Problem symptom
Display EC
Cause
Outdoor communication fault between power source board and
intelligent power module
Malfunction No.
1
Content of diagnosis
Action
Check the contact of communication wire (CN5)
Insert again if loose.
between power source board and intelligent power
module
2
After
the
unit
is
complete
The
indicator
on
power
energized,
source board flare normal
check the indicators
(bright for 1 second and dark
on
for
outdoor
source
power
board and
intelligent
module
power
1
second),
but
Replace the intelligent power
If the fault remains unsolved,
module
replace the power source board
again.
the
indicator on intelligent power
module
does
not
work
normally
The indicator on intelligent
Replace the power source
If the fault remains unsolved,
power module flare normal
board
replace the intelligent power
(bright for 1 second and dark
for
1
second),
but
module again.
the
indicator on power source
board does not work normally
You can check each voltage of the electrical board communication pin, the normal data is as the following:
Pin
1
2
3
4
5
6
Voltage(V)
5
1.0-4.8
1.8-4.1
2.6
earthing
15
Outdoor communication circuit
3-13
SHARP(CHINA)INVESTMENT CO.,LTD
6. Display EU
Problem symptom
Display EU
Cause
Malfunction No.
1
Voltage sensor fault
Content of diagnosis
Action
The outdoor power source bord can’t check the
voltage, check the votage lower or higher than the
protector voltage .
Insert again if loose.
Replace the outdoor power source board
3-14
voltage sampling circuit
7. Display EP
Problem symptom
Display EP
Cause
Malfunction No.
1
Temperature switch fault ( on top of the compressor)
Content of diagnosis
Action
Check the insert position CN3 of the compressor
Insert again if loose.
top temperature switch wires on outdoor power
source board
2
No switch on compressor top
Jumper short-circuiting (This function not provided for 1 – 1.5P unit)
The correct sequence of U. V and W wiring shall be “red, white and
Compressor
Check the U, V and W wires of
temperature. The
the compressor.
blue”. Connect again if incorrect.
temperature
Check the system pressure.
The pressure is low. Add refrigerant to ensure the system pressure
very
is
high,
is normal.
accompanied
with bad smell.
Check the outdoor ventilation
Install to the position as required in the Installation Manual and
and if there is any obstruction
ensure the air inlet and outlet of the outdoor unit is smooth.
that affects the normal radiating
of the air conditioner.
3
Compressor temperature: The temperature is not
high. Short circuit CN3.
If the fault is solved after short circuiting, replace the shell
temperature switch.
If the fault remains unsolved after replacing the shell temperature
switch, please replace the outdoor power source board.
8. Display P1
Problem symptom
Display P1
Cause
Malfunction No.
1
Overvoltage / undervoltage protection
Content of diagnosis
Action
Test the supply voltage if it is between 160V ̚260V
It is normal protection if exceeding this range.
˄AC˅.
Test if the voltage between L and N terminal of
2
3
It is normal protection if exceeding this range.
outdoor unit is within 160V̚260V˄AC˅.
If the voltage is normal:
Replace the outdoor power source board
3-14
SHARP(CHINA)INVESTMENT CO.,LTD
9. Display E9 (Firstly display P0 or P9, then change to E9)
Problem symptom
Display E9 (Firstly display P0 or P9, then change to E9)
Cause
Malfunction No.
1
Intelligent power module of drive and module fault
Content of diagnosis
Action
Re-energize
If this code is displayed when the compressor is
and
started for several seconds or even not started,
check
the
check the compressor connection for correctness
protection
“P0”
Check if the outdoor module is
code
appears
tightly installed onto the radiating
on
display.
when
Firstly
air
evenly
display P0
conditioner
Check the system pressure.
If no insert wrong, replace the intelligent power module
Fix the screws again if loose.
fins and if the silicone is applied
the
Recharge refrigerant if the pressure is low. Discharge
is working
some refrigerant if the pressure is too high.
Check the outdoor ventilation and if
Install to the position as required in the Insallation
there is any obstruction that affects
manual and ensure the air inlet and outlet of the outdoor
the normal radiating of the air
unit is smooth.
conditioner.
The above inspections are normal,
Replace the intelligent power module
but the fault remains unsolved
2
Re-energize
If this code is displayed when the compressor is
and
started for several seconds or even not started,
check
the
If no insert wrong, replace the intelligent power module
check the compressor connection for correctness
protection
When the compressor is restarted immediately
Try starting the air conditioner again after a longer period
code
after stop, this might also cause P9 protection
of stop
on
display.
because the cooling system is not stable.
Firstly
P9
appears
Cooling / heating is normal
display P9
after
the
during run
air
conditioner
started
is
and
If
the
cooling
abnormal,
has run for a
compressor
period of time
correctness.
/
heating
check
wiring
is
Replace the intelligent power module
Insert again if loose.
the
for
10. Display EE
Problem symptom
Display EE
Cause
Malfunction No.
1
EEPROM fault
Content of diagnosis
Action
Shut off the power and suplyes again,if EE dispay again:
Replace outdoor power source board
11. Display P1
Problem symptom
Display P1
Cause
Malfunction No.
1
2
Overvoltage / undervoltage protection
Content of diagnosis
Action
Test the supply voltage if it is between 160V ̚260V˄AC˅.
It is normal protection if exceeding this range.
Test if the voltage between L and N terminal of outdoor unit is
It is normal protection if exceeding this range.
within 160V̚260V˄AC˅.
3
If the voltage is normal
Replace the outdoor power source board
12. Display E0ǃE5
3-15
SHARP(CHINA)INVESTMENT CO.,LTD
Problem symptom
Display E0
Cause
Malfunction No.
1
E5
Indoor / ou tdoor communication fault
Content of diagn osis
Energize
Action
1. Check if the indoor and outdoor connections are
and
correct. The terminal L and N shall correspond to
observe for
each other on indoor and outdoor units. Measure
approx. 10
the voltage on outdoor terminal L and N (before
minutes.
display of E0 fault). If the voltage is “0”:
E0
is
If
still
2. If the L & N voltage is normal, measure the
displayed or
voltage between the outdoor terminal N and 1. If
changed to
the voltage change occurs between 0~24V
E5 after a
(change pulse voltage)
period
time:
of
3. If the L & N voltage is normal, measure the
Replace the indoor main PCB.
Replace the indoor main PCB.
Replace the outdoor power source board.
voltage between the outdoor terminal N and 1. If
the voltage change occurs between 0~12V change
pulse voltage), but there is no 24V:
4. If the L & N voltage is normal, measure the
Firstly replace the indoor main PCB. If the fault remains
voltage between the outdoor terminal N and 1. If
unsolved, replace the outdoor power source board.
the voltage has no change:
5.
1) The indicator is dark: Check IPM
Indicator
board – Test the pins of rectifier
on
bridge, fast recovery diode (FRD)
outdoor
and
power
breakdown,
source
damage.
board
IGBT
elements
short
for
circuiting
Replace the power source board.
any
or
2) If no damage, test the DC voltage
Replace the power source board.
between DC+ and DC-. If the voltage
is approx. 310V:
3) If no damage, test the DC voltage
Replace the power source board.
between DC+ and DC-. If the voltage
is zero:
6. If the problem cannot be solved by using the
Firstly replace the intelligent power module . If the
methods above:
problem remains unsolved, replace the indoor main PCB.
7. If this fault appears at the initial installation and
please check if the indoor control board and outdoor
testing of the complete unit
inverter module are of the same generation.
Power source board . power factor correction.
The schematic diagram of Indoor unit communication loop
The schematic diagram of the partial outdoor unit communication loop
3-16
SHARP(CHINA)INVESTMENT CO.,LTD
13. Display P4
Problem symptom
Display P4
Cause
Malfunction No.
1
Discharge overtemperature protection
Content of diagn osis
Action
Check if the air inlet and outlet of outdoor unit is blocked by any
Install to the position as required in the Instruction
obstructions.
Manual and ensure the air inlet and outlet of the
outdoor unit is smooth.
2
Check the system for shortage of refrigerant.
Add refrigerant
3
Check if the exhaust temperature sensor is drifted, short circuited or
Replace the exhaust temperature sensor
open circuited. (25ć/20k). For other resistances, please refer to
the Exhaust Temperature Sensor – Resistance Sheet)
4
Control board damaged
Replace the outdoor power source board
14. Display P2
Problem symptom
Display P2
Cause
Malfunction No.
1
Overcurrent protection
Content of diagn osis
Action
Check if the outdoor fan motor is stopped due to overheat
Replace the fan capacitor,replace the outdoor power
protection, or damaged, and if the fan capacitor is damaged.
source board and the damaged outdoor fan motor.
15. Display P5
Problem symptom
Display P5
Cause
Subcooling prote c tion under cooling mode
Malfunction No.
Content of diagn osis
Action
1
Check if the air inlet and outlet of indoor unit is blocked by any
Install to the position as required in the Installation manual
obstructions.
and ensure the air inlet and outlet of the outdoor unit is
smooth.
2
Check the system for shortage of refrigerant.
Add refrigerant
3
Check if the exhaust temperature sensor is drifted, short
Replace room temperature sensor (IRT) and Indoor pipe
circuited or open circuited. (Measure the resistance of the
(coil) temperature sensor (IPT)
resistors on two ends of indoor temperature sensor: (25ć /
5k). For other resistances, please refer to the Temperature –
Resistance Sheet.
4
Control board damaged
Replace the indoor control board
16. Display P6
Problem symptom
Display P6
Cause
Overheating protection under cooling mode
Malfunction No.
Content of diagn osis
Action
1
Check if the air inlet and outlet of outdoor unit is blocked by any
Install to the position as required in the Installation manual
obstructions.
and ensure the air inlet and outlet of the outdoor unit is
smooth.
2
Check the system for shortage of refrigerant.
Add refrigerant
3
Check if the outdoor evaporator coil temperature sensor is
Replace the outdoor coil temperature sensor
drifted, short circuited or open circuited (25ć/5K). For other
resistance, please refer to the Temperature – Resistance
Sheet.
4
Control board damaged
Replace the outdoor power source board
3-17
SHARP(CHINA)INVESTMENT CO.,LTD
17. Display P7
Problem symptom
Display P7
Cause
Overheating protection under heating mode
Malfunction No.
1
Content of diagn osis
Action
Check if the air inlet and outlet of outdoor unit is blocked by any
Install to the position as required in the Installation manual
obstructions.
and ensure the air inlet and outlet of the outdoor unit is
smooth.
2
Check the system for shortage of refrigerant.
Add refrigerant
Check if the indoor exchange temperature thermistor is drifted,
short circuited or open circuited. (Measure the resistance of the
3
resistors on two ends of indoor temperature thermistor: (25ć /
Replace the Indoor exchange temperature thermistor(IPT)
5k). For other resistances, please refer to the Temperature –
Resistance Sheet.
4
Control board damaged
Replace the indoor control board
18. Display P8
Problem symptom
Display P8
Cause
Outdoor air temperature over/under protection
Malfunction No.
Content of diagn osis
Action
The compressor cannot run under cooling mode when the
1
outdoor temperature is lower than -1ć, or run under heating
Normal protection function
mode when the outdoor temperature is higher than 33ć, whilst
the compressor alarms P8 protection.
If the temperature is not within the protective range above,
please refer to the Temperature – Resistance Sheet (See
2
Appendix). Use the multimeter to measure the resistors on the
Replace the sensor if it is incurred to drift, open circuiting
two ends of outdoor intake temperature sensor (CN1)
or short circuiting.
(25ć/5k).
For
other
resistance,
please
refer
to
the
Temperature – Resistance Sheet.
3
If the fault remains unsolved after replacement of the sensor
Replace the outdoor power source board
19. Display P9
Problem symptom
Display E9 (Firstly display P0 or P9, then change to E9)
Cause
Intelligent power module of drive and module fault
Malfunction No.
Content of diagn osis
Re-energize
If this code is displayed when the compressor is
and check the
started for several seconds or even not started,
Replace the intelligent power module.(Be sure to apply
protection
check
silicone when replacing the intelligent power module.).
code
1
Action
on
the
compressor
connection
for
correctness.
display.
P9
appears
Cooling/heating
Firstly display
after
the
during run
P9
conditioner
started
air
is
normal
Insert again if loose
is
and
If the cooling / heating are
has run for a
abnormal,
period of time
compressor
check
wiring
the
for
Insert again if loose
correctness.
When the compressor is restarted immediately
Try starting the air conditioner again after a longer
after stop, this might also cause P9 protection
period of stop
because the cooling system is not stable.
3-18
SHARP(CHINA)INVESTMENT CO.,LTD
CHAPTER 4. REFRIGERATION CYCLE
[1] SCHEMATIC DIAGRAM
[2] STANDARD CONDITION
Indoor side
Outdoor side
Dry-bulb Temp. (°C)
Relative Humidity (%)
Cooling
27
47
Heating
20
Dry-bulb Temp. (°C)
Relative Humidity (%)
35
40
7
87
[3] TEMPERATURE AT EACH PART AND PRESSURE IN 3-WAY VALVE
NOTE
1)Indoor fan speed: Hi
2)Vertical adjustment louver "front”, Horizontal adjustment louver "level"
3)Indoor air temp. : Cooling 27°C, Heating 20°C
4)Power source : 230V, 50Hz
5)Compressor speed : Rated frequency
4-1
SHARP(CHINA)INVESTMENT CO.,LTD
AY-XP9PSR/AE-XP9PSR
1.1. At Cooling
1.2. At Heating
㪏㪌㪇㩷
㪎㪇㪇㩷
㪏㪇㪇㩷
㪠㫅㫇㫌㫋㩷㩿䌗㪀
㪠㫅㫇㫌㫋㩷㩿㪮㪀
㪍㪌㪇㩷
㪍㪇㪇㩷
㪎㪌㪇㩷
㪎㪇㪇㩷
㪌㪌㪇㩷
㪍㪌㪇㩷
㪍㪇㪇㩷
㪌㪇㪇㩷
㪉㪇
㪉㪌
㪊㪇
㪊㪌
㪋㪇
㪄㪈㪇
㪋㪌
㪄㪌
㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷䋨㷄䋩
㪈㪇
㪈㪌
㪋㪅㪇㩷
㪊㪅㪌㩷
㪊㪅㪌㩷
㪟㪼㪸㫋㫀㫅㪾㩷㪺㪸㫇㪸㪺㫀㫋㫐㩷㩿㫂㪮㪀
㪚㫆㫆㫃㫀㫅㪾㩷㪺㪸㫇㪸㪺㫀㫋㫐㩷㩿㫂㪮㪀
㪌
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷㩿㷄㪀
㪊㪅㪇㩷
㪉㪅㪌㩷
㪉㪅㪇㩷
㪊㪅㪇㩷
㪉㪅㪌㩷
㪉㪅㪇㩷
㪈㪅㪌㩷
㪉㪇
㪉㪌
㪊㪇
㪊㪌
㪋㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷䋨㷄䋩
㪄㪈㪇
㪋㪌
㪄㪌
㪇
㪌
㪈㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷㩿㷄㪀
㪈㪌
AY-X12PSR/AE-X12PSR
1.1. At Cooling
1.2. At Heating
㪈㪈㪇㪇㩷
㪈㪉㪇㪇㩷
㪈㪇㪇㪇㩷
㪠㫅㫇㫌㫋㩷㩿䌗㪀
㪠㫅㫇㫌㫋㩷㩿㪮㪀
㪈㪈㪇㪇㩷
㪐㪇㪇㩷
㪈㪇㪇㪇㩷
㪏㪇㪇㩷
㪐㪇㪇㩷
㪎㪇㪇㩷
㪉㪇
㪉㪌
㪊㪇
㪊㪌
㪋㪇
㪏㪇㪇㩷
㪋㪌
㪄㪈㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷䋨㷄䋩
㪄㪌
㪇
㪌
㪈㪇
㪈㪌
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷㩿㷄㪀
㪍㪅㪇㩷
㪋㪅㪇㩷
㪟㪼㪸㫋㫀㫅㪾㩷㪺㪸㫇㪸㪺㫀㫋㫐㩷㩿㫂㪮㪀
㪚㫆㫆㫃㫀㫅㪾㩷㪺㪸㫇㪸㪺㫀㫋㫐㩷㩿㫂㪮㪀
㪋㪅㪌㩷
㪊㪅㪌㩷
㪊㪅㪇㩷
㪉㪅㪌㩷
㪉㪇
㪉㪌
㪊㪇
㪊㪌
㪋㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷䋨㷄䋩
㪌㪅㪇㩷
㪋㪅㪇㩷
㪊㪅㪇㩷
㪉㪅㪇㩷
㪋㪌
㪄㪈㪇
㪄㪌
㪇
㪌
㪈㪇
㪦㫌㫋㫊㫀㪻㪼㩷㪸㫀㫉㩷㫋㪼㫄㫇㪅㩷㩿㷄㪀
4-2
㪈㪌
SHARP(CHINA) INVESTMENT CO., LTD
CHAPTER 5. DISASSEMBLY PROCEDURE
If, in carrying out repairs and modifications, the work requires the use of arc- and flame-producing apparatus, such as welding, brazing and
solderingequipment, this work shall only be started after the rooms have been thoroughly ventilated. While the work is being carried out, the
mechanical venti-lation, if any, shall be kept in constant operation and all windows and doors kept open. In the case of repairs to parts of the
refrigerant circuit, it maybe necessary that not only the workman but also a second person shall be present for observation and
assistance.Necessary protective equipment shall be available and, in the case of open flames or arcs, fire extinguishing apparatus shall be ready to
hand.Welding and brazing shall be carried out by qualified workmen.
[1] INDOOR UNIT
1) Open the open panel and remove it.
4) Loosen the screws on the terminal board and remove the unit-tounit
wiring connected with the board.
2) Remove a screw fixing the cord holder.
5) Slide out the 2 air filters.
3) Remove the cord holder.
6) Remove 5 screws fixing the front panel.
5-1
SHARP(CHINA) INVESTMENT CO., LTD
8) Remove the thermistor suppertor and the thermistor clip.Remove a
screw fixing the earth wire.
7) Unfasten the front panel and pull forward it slightly. (4 circled spotsin
the picture are hooked.)
9) Remove the screw fixing on the control box cover from the control
Open the horizontal louver.
box and pull it away.
Back
10) Remove the 3 screw and the 5 connectors and remove the control
Horizontal Louver
Pull the front panel toward in the direction shown the picture.
box.
Another one is iner
5-2
SHARP(CHINA) INVESTMENT CO., LTD
11) Remove the horizontal louver fromcabinet while warping.
12) Remove the two screw and remove the vane motor.
b) Remove the tube cover.
•Insert the (–) screwdriver to A hole, D clip and then lean it to theright
as lifting B part.
c) Remove the evaporator from the cabinet.
•Take off the catch of the tube cover from the plate and movethe evapo
13) Remove the water drainge assembly and take off .
D
14)
a) Remove the 4 screws fixing the side left and side right.
5-3
SHARP(CHINA) INVESTMENT CO., LTD
15) Loosen the screw of cross flow fan and separate the cross flow fan
When assembling them, insert the motor shaft in the boss of thecross
and the fan motor
flow fan to the ring position.
Ring
[2] OUTDOOR UNIT
1)The fixed screw of control box cover is removed and control
3) The 2 screws on the left-hand side of top plate ass’y is removed.
boxcover is removed.
4)The screw on the left-hand side of grille is removed
2)The 2 screws on the right-hand side of top plate ass’y is removed.
5-4
SHARP(CHINA) INVESTMENT CO., LTD
5)The screw on the right-hand side of front panel is removed
9) Unscrew the 4 screws on the back side of of right plate and removed
the right plate.
6)The screw on the left-hand side of front panel is removed
10) Unscrew the 4 screws on the side left grille and removed the left
grille.
7) The 3 screws of the front of a front panel is removed.
8)The 5 screws on the right-hand side of right plate is removed.
5-5
SHARP(CHINA) INVESTMENT CO., LTD
11) Remove the connectors and reactor in the control box.
14) Remove the compressor covers 1 and 2.
15) Remove the nut, and remove the terminal cover.
12)Remove the 2 screws fixed the control box.
16) Remove the lead wire and the cover gasket.
17) Remove the compressor cover.
13) Remove the 3 screws fixed the bulkhead plate.
5-6
SHARP(CHINA) INVESTMENT CO., LTD
18) Remove the 3 thermistors.
[3] CONTROL BOX
1.Control unit box's Approach to decomposition.
1) Take off lead wires from terminal assembly.
(Blue wire,Brown wire,Black wire)
19) Thermistor position.
Discharge Temp.
2) Take off screw (earth).
Take off earth lead wire(green/yellow) from electronic box.
Outside air Temp.
Outside pipe Temp.
20) Remove the outdoor fan.
3) Take off box cover.
19) Unscrew the 2 screws and remove the motor angle.
Box cover
4) Take off screws 6 PCS)
5-7
SHARP(CHINA) INVESTMENT CO.,LTD
CHAPTER7.INSTALLATION MANUL
795
190
40
280
40
150
95
7-1
SHARP(CHINA) INVESTMENT CO.,LTD
80
70
10
7-2
SHARP(CHINA) INVESTMENT CO.,LTD
7-3
SHARP(CHINA) INVESTMENT CO.,LTD
80
70
10
(1)
7-4
SHARP(CHINA) INVESTMENT CO.,LTD
CHAPTER 6. OPERATION MANUAL
6-1
SHARP(CHINA) INVESTMENT CO., LTD
6-2
SHARP(CHINA)INVESTMEN
T
50
13
CO., LTD
50
3
6- 3
SHARP(CHINA) INVESTMENT
CO., L TD
6-4
SHARP(CHINA) INVESTMENT CO., LTD
21
27
6-5
46
18
24
7
AY-X9PSR/AY-12PSR
PartsGuide
PARTS GUIDE
ROOM AIR CONDITIONER
MODEL
INDOOR UNIT
AY-X9PSR
AY-X12PSR
OUTDOOR UNIT
AE-X9PSR
AE-X12PSR
CONTENTS
[1]
INDOOR UNIT PARTS
[4]
OUTDOOR UNIT PARTS
[2]
ACCESSORY PARTS
[5]
OUTDOOR PACKING PARTS
[3]
INDOOR PACKING PARTS
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP(CHINA) INVESTMENT CO., LTD
[1] INDOOR UNIT PARTS
AY-X9PSR/AY-X12PSR
1
2
3
4
27
5
26
6
7
25
24
8
9
23
22
21
20
19
10
11
18
17
16
15
14
13
12
2
SHARP(CHINA) INVESTMENT CO., LTD
AY-X9PSR
No.
Part No.
Part Name
Q’ty
Remark
1
PPLTNA161JBWZ
Installation Plate
1
2
LCHS-A674JBF A
Base
1
3
NFANCA15 5JBKZ
Cross Fan
1
4
NBRG-A075JBE Z
Bearing Mount
1
5
DEVA-A582JBKZ
Evaporator
1
6
CSRA-A896JBKZ
Water Drainage Assembly
1
7
MLOV-A588JBFA
Vertical Vane Assembly
2
8
GWAK-A420JBF A
Face Fra m e
1
9
LHLD-B288JBFA
Screw Cover
3
10
PFILMA289JBE A
Air Filter
2
11
HPNL-B314JBR A
Front Panel
1
12
QACC-A362JBZZ
Power Supply Cord
1
13
MLOV-A58 9JBF A
Vane
1
14
PHOS-A067JBEZ
Drainage Hose
1
15
CDECQA084JBKZ
Display PCB Cover
1
16
RLCDSA127JBZ Z
Display PCB
1
17
HDECQA533JBFA
Display PCB Box
1
18
LHLD-B289JBFA
Cable Clamp
1
19
DSGY-F199JBKZ
Main PCB
1
20
DBOX-A15 6JBKZ
Electrical Box
1
21
CMOTLB546JBEZ
Vane Motor
1
22
LHLD-B290JBFZ
Sensor Holder
1
23
CMOTLB547JBEZ
Indoor Motor
1
24
PCOV-C123JBFZ
Indoor Motor Cover
1
25
RTRNWA070JBZZ
Transformer
1
26
RH-HXA191JBZZ
Indoor Sensor Assembly
1
27
PCOV-C124JBFZ
In And Out Pipe Fixer
1
3
SHARP(CHINA) INVESTMENT CO., LTD
AY-X12PSR
No.
Part No.
Part Name
Q’ty
Remark
1
PPLTNA161JBWZ
Installation Plate
1
2
LCHS-A674JBF A
Base
1
3
NFANCA15 5JBKZ
Cross Fan
1
4
NBRG-A075JBE Z
Bearing Mount
1
5
DEVA-A583JBKZ
Evaporator
1
6
CSRA-A896JBKZ
Water Drainage Assembly
1
7
MLOV-A588JBFA
Vertical Vane Assembly
2
8
GWAK-A420JBF A
Face Fra m e
1
9
LHLD-B288JBFA
Screw Cover
3
10
PFILMA289JBE A
Air Filter
2
11
HPNL-B314JBR A
Front Panel
1
12
QACC-A362JBZZ
Power Supply Cord
1
13
MLOV-A58 9JBF A
Vane
1
14
PHOS-A067JBEZ
Drainage Hose
1
15
CDECQA084JBFA
Display PCB Cover
1
16
RLCDSA127JBZZ
Display PCB(Digital)
1
17
HDECQA533JBFA
Display PCB Box
1
18
LHLD-B289JBFA
Cable Clamp
1
19
DSGY-F199JBKZ
Main PCB(Digital)
1
20
DBOX-A15 6JBKZ
Electrical Box
1
21
CMOTLB546JBEZ
Vane Motor
1
22
LHLD-B290JBFZ
Sensor Holder
1
23
CMOTLB547JBEZ
Indoor Motor
1
24
PCOV-C123JBFZ
Indoor Motor Cover
1
25
RTRNWA070JBZZ
Transformer
1
26
RH-HXA191JBZZ
Indoor Sensor Assembly
1
27
PCOV-C124JBFZ
In And Out Pipe Fixer
1
4
SHARP(CHINA) INVESTMENT CO., LTD
[2] ACCESSORY PARTS
1
2
3
ACCESSORY PARTS
No.
Part No.
Part Name
Q’ty
1
CRMC-A891JBEZ
REMOTE CONTROL
1
2
TINSJB281JBRZ
INSTALLTION MANUAL
1
TINSJB280JBRZ
OPERATION MANUAL
1
3
Remark
[3] INDOOR UNIT PARTS
1
2
3 (4)
t Foaming
INDOOR PACKING PARTS
No.
Part No.
Part Name
Q’ty
Remark
1
SPADBA703JBEZ
Left Foaming
1
2
SPADBA703JBEZ
Right Foaming
1
3
SPAKCE433JBEZ
Indoor Carton
1
for AY-X9PSR
4
SPAKCE466JBEZ
Indoor Carton
1
for AY-X12PSR
SHARP(CHINA) INVESTMENT CO., LTD
[4] OUTDOOR UNIT PARTS
AE-X9PSR/AE-X12PSR
6
7
3
4
5
2
1
29
28
8
27
26
25
24
9
23
22
21
20
19
18
17
10
11
12
6
13
14
15
16
SHARP(CHINA) INVESTMENT CO., LTD
AE-X9PSR
No.
Part No.
Part Name
Q’ty
Remark
1
CCAB-A597JBKZ
Top cover
1
2
DCoN-A784JBPZ
Condenser
1
3
LANGKA345JBPZ
Outdoor motor supporter
1
4
CMoTLB548JBEZ
Outdoor motor
1
5
NFANPA154JBEZ
Propeller fan
1
6
PPLT-A990JBTA
Left grille supporter
1
7
GGADUA015JBEA
Left grille
1
8
GCAB-A486JBTA
Front plate
1
9
GGADPA028JBFA
Fan guard
1
10
FCMPRA374JBKZ
Compressor and accessories
1
11
FVLV-A301JBKZ
4-way valve
1
12
CVLV-B263JBKZ
4-way valve assembly
1
13
CCHS-B413JBYZ
Base
1
14
PPLT-A991JBTA
Right plate
1
15
DVLV-B426JBK Z
Two-way valve
1
16
PPLT-A992JBPZ
Valve supporter
1
17
DVLV-B425JBKZ
Three-way valve
1
18
JHNDPA035JBF A
Electrical box cover
1
19
LHLD-AA01SRFZ
Cable clamp
1
20
PDAi-A304JBWZ
Terminal
1
21
PBoX-A604JBPZ
Electrical box
1
this is assembly
22
QTANZA097JBZZ
Power source board
1
23
DSGY-F210JBKZ
Inverter module
1
24
LANGKA344JBPZ
Radiator
1
25
RCiLZA059JBZZ
Inductor
1
26
RH-HXA194JBZZ
Pipe Temp. sensor and outdoor
1
Temp. sensor
27
RH-HXA195JBZZ
Discharge Temp. sensor
1
28
PSKR-A423JBPZ
Partition plate
1
29
CCPY-A333JBKZ
Capillary assemb ly
1
7
SHARP(CHINA) INVESTMENT CO., LTD
AE-X12PSR
No.
Part No.
Part Name
Q’ty
Remark
1
CCAB-A597JBKZ
Top cover
1
2
DCON-A785JBPZ
Condenser
1
3
LANGKA345JBPZ
Outdoor motor supporter
1
4
CMOTLB548JBEZ
Outdoor motor
1
5
NFANPA154JBEZ
Propeller fan
1
6
PPLT-A990JBTA
Left grille supporter
1
7
GGADUA015JBEA
Left grille
1
8
GCAB-A486JBTA
Front plate
1
9
GGADPA028JBFA
Fan guard
1
10
FCMPRA375JBKZ
Compressor and accessories
1
11
FVLV-A301JBKZ
4-way valve
1
12
CVLV-B264JBKZ
4-way valve assembly
1
13
CCHS-B413JBYZ
Base
1
14
PPLT-A991JBTA
Right plate
1
15
DVLV-B426JBK Z
Two-way valve
1
16
PPLT-A992JBPZ
Valve supporter
1
17
DVLV-B427JBKZ
Three-way valve
1
18
JHNDPA035JBFA
Electrical box cover
1
19
LHLD-AA01SRFZ
Cable clamp
1
20
PDAI-A304JBWZ
Terminal
1
21
PBOX-A604JBP Z
Electrical box
1
this is assembly
22
QTANZA098JBZZ
Power source board
1
23
DSGY-F210JBKZ
I n v e r t e r m o d ul e
1
24
LANGKA344JBPZ
Radiator
1
25
RCiLZA059JBZZ
I nd u c t o r
1
26
RH-HXA194JBZZ
Pipe Temp. sensor and outdoor
1
Temp. sensor
27
RH-HXA195JBZZ
Discharge Temp. sensor
1
28
PSKR-A423JBPZ
Partition plate
1
29
CCPY-A334JBKZ
Capillary assembly
1
8
SHARP(CHINA) INVESTMENT CO., LTD
[5] OUTDOOR PACKING PARTS
2
3
4
1(5)
PACKING PARTS
No.
Part No.
Part Name
Q’ty
1
SPAKCE434JBEZ
Cabinet carton
1
2
SPADBA706JBFZ
Cover foaming
1
3
SPADBA705JBFZ
Base foaming
1
4
SPAKCE435JBEZ
Base carton
1
5
SPAKCE468JBEZ
Cabinet carton
1
Remark
for AE-X9PSR
for AE-X12PSR
9