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Service diagnosis

Domestic air conditioner

Outdoor

Malfunction

F12

■

★

■

Outdoor EEPROM error

Page .32

□

★

The protection of IPM

Page .36

F22

★

■

Overcurrent protection

of AC electricity for

the outdoor model

Page .37

■

★

■

Communication

fault

between the IPM and

outdoor PCB

Page.39

F19

■

★

□

Power voltage is too high

or low

Page .40

■

★

■

Overheat protection for

Discharge temperature

Page .41

F21

□

★

Defrost

temperature

sensor failure

Page

31.

■

★

■

Suction

temperature

sensor failure

Page .3

□

★

■

Ambient

temperature

sensor failure

Page .3

F25

★

□

■

Discharge

temperature

sensor failure

Page .3

F11

■

★

■

deviate from the normal

for the compressor

Page .44

F28

■

★

■

Loop of the station

detect error

Page .44

■

★

□

Overcurrent

the

compressor

Page .37

F23

■

★

□

Overcurrent protection for

single-phase

the

compressor

Page .43

10.3.1 Thermistor or Related Abnormality

Indoor Display

★

■

E1: Room temperature sensor failure

★

□

E2: Heat-exchange sensor failure

Outdoor display LED1 flash 10 times

：

Defrost temperature sensor failure

LED1 flash 11 times

：

Suction temperature sensor failure

LED1 flash 12 times

：

Ambient temperature sensor failure

LED1 flash 13 times

：

Discharge temperature sensor failure

Method of The temperatures detected by the thermistors are used to determine thermistor errors

Malfunction

Detection

Malfunction When the thermistor input is more than 4.92V or less than 0.08V during compressor

Decision operation.

Conditions

Note: The values vary slightly in some models

Supposed

■

Faulty connector connection

Causes

■

Faulty thermistor

■

Faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Содержание JS035-C1

Страница 1: ...ions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING Version V1 Date 2020 2 20 JS035 C1 M...

Страница 2: ...troduction 1 2 Features 7 3 Specifications 8 4 Sensors list 9 5 Pinping diagrams 10 6 Printed circuit board connector wiring diagram 11 7 Funcitions and control 13 8 Dimensional drawings 23 9 Center of gravity 23 10 Service Diagnosis 24 11 Wiring diagrams 43 ...

Страница 3: ... Therefore be sure to observe all the safety caution items described below About the pictograms This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid This symbol indicates a prohibited action The prohibited item or action is shown inside ornear the symbol This symbol indicates an action that must be taken or an instruction Th...

Страница 4: ...mpressor at the welded section release the refrigerant gas completely at a well ventilated place first If there is a gas remaining inside the compressor the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected and it can cause injury If the refrigerant gas leaks during the repair work ventilate the area The refrigerant gas can generate toxic gases when it contacts ...

Страница 5: ...Using the welder in an enclosed room can cause oxygen deficiency 1 2 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating...

Страница 6: ...t generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure result...

Страница 7: ...properly water can enter the room and wet the furniture and floor 1 2 3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damag...

Страница 8: ...ock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 2 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides infor...

Страница 9: ...ce airflow with 12m maximum 15 C heating when 15 C can still heating natural Comfortable sleep The setting temperature and the indoor noise can be adjusted to a more comfortable level when you set the sleep mode during night sleep DIY auto mode You can set a temperature value with which the unit can adjust the operation mode automatically Auto restart The function permits automatic return to previ...

Страница 10: ...ity rated KW 3 50 3 60 Btu h 11940 12286 Power Consumption Rated KW 1 24 1 05 SEER SCOP W W 6 1 A 4 0 A Annual energy consumption KWh 201 980 Moisture Removal m h 1 6 10 TECHNICAL SPECIFICATIONS Dimensions H W D mm 820 195 280 Packaged Dimensions H W D mm 909 279 355 Weight KG 8 2 Gross weight KG 10 5 Color White Sound level Sound pressure high medium low dB 37 33 29 19 Sound power dB 56 ...

Страница 11: ...rizontal Downward Air filter Removable Washable Mildew Proof Temperature control Microcomputer Control Remote controller model 0010401715Y Note the data are based on the conditions shown in the table below cooling heating Piping length Indoor 27 DB 19 WB Outdoor 35 DB 24 WB Indoor 20 DB Outdoor 7 DB 6 WB 5m 4 Sensors list type Description Qty Room sensor Its used for detecting room temperature 1 P...

Страница 12: ...Piping diagrams 10 Domestic air conditioner 5 Pinping diagrams EEV EEV ...

Страница 13: ...play board 7 CN23 red line Connector for communicate between the indoor board and the outdoor board 8 CN35 Connector for wifi Module 9 CN12 Connector for double STEP motor 10 CN51 Connector for room card 11 CN36 Far control 12 CN11 Connector for LEFT RIGHT STEP motor Note Other designations PCB 1 Indoor Control PCB 1 SWI Connector for Forced operation ON OFF switch 2 FUSE1 Fuse 3 15A 250VAC J2 ON ...

Страница 14: ...Dimensional drawings 12 Domestic air conditioner PCB 1 CN9 CN5 CN17 CN21 CN7 SW1 CN35 CN22 CN36 CN6 CN23 CN11 CN12 CN51 ...

Страница 15: ...equency control 1 Pn Nh_c S_c 10 30 PID control 2 1 When the starting ability is not the maximum frequency EE its maximum frequency limitation is calculated by the following equations The frequency limitation the maximum frequency EE the rated frequency K of the indoor setting airflow speed Refrigeration mode The indoor setting airflow speed Low Medium The percentage of the rated frequency K 73 85...

Страница 16: ...ched the fan speed according to the temperature range 7 1 4 Heating operation mode temperature control range 16 30 temperature difference 1 Control features Pn Nh_c S_c 10 60 the maximum frequency control 1 Pn Nh_c S_c 10 60 PID control 2 1 When the starting ability is not the maximum frequency EE its maximum frequency limitation is calculated by the following equations The frequency limitation th...

Страница 17: ...sends the mute signal to the outdoor system b mute cooling the airflow speed is slight the system sends the mute signal to the outdoor system When the compressor operates the airflow speed is mute speed EEPROM is adaptable Mute operation can not work under the dehumidifying and airflow sending operation 7 1 7 Air refreshing This model does not choose After receiving the signal from the remote cont...

Страница 18: ...e original timing 2 4 Indoor fan control under the dormant operation If the indoor fan is at the high speed before the dormant operation setting the speed will be turned to medium after the setting If the fan is at the medium speed before the dormant setting the speed will be turned to low after the setting If the fan is at the low speed before the dormant setting the speed will not change 7 1 10 ...

Страница 19: ...ty Under the operation the normal temperature ranges from 120 degree to 30 degree When the temperature goes beyond this range the abnormality can be confirmed If the temperature goes back into the range the system will automatically resume 2 indoor heat interaction sensor abnormality Under the operation the normal temperature ranges from 120 degree to 30 degree When the temperature goes beyond thi...

Страница 20: ...urgency signal operate according to the remote control and the urgent conditions the present status will be stored into the EEPROM of the indoor system Quitting conditions Press dormant button 10 times within 7 seconds and the buzzer will ring twice 7 1 17 Time cutting function Connect the test program terminal on the mainboard after connecting the system to the power circuit The CPU of the main c...

Страница 21: ... 577 54 6 6 17 33 848 55 6 34 R25 10KΩ 2 B25 50 3700K 2 Temp Max KΩ Normal KΩ Min KΩ Tolerance 30 165 2170 147 9497 132 3678 1 94 1 75 29 155 5754 139 5600 125 0806 1 93 1 74 28 146 5609 131 7022 118 2434 1 91 1 73 27 138 1285 124 3392 111 8256 1 89 1 71 26 130 2371 117 4366 105 7989 1 87 1 70 25 122 8484 110 9627 100 1367 1 85 1 69 24 115 9272 104 8882 94 8149 1 83 1 67 23 109 4410 99 1858 89 810...

Страница 22: ...5 25 3193 23 9462 22 6273 1 23 1 18 6 24 1432 22 8656 21 6361 1 20 1 16 7 23 0284 21 8398 20 6939 1 18 1 14 8 21 9714 20 8659 19 7982 1 15 1 12 9 20 9688 19 9409 18 9463 1 13 1 09 10 20 0176 19 0621 18 1358 1 11 1 07 11 19 1149 18 2270 17 3646 1 08 1 05 12 18 2580 17 4331 16 6305 1 06 1 03 13 17 4442 16 6782 15 9315 1 03 1 01 14 16 6711 15 9601 15 2657 1 01 0 99 15 15 9366 15 2770 14 6315 0 98 0 9...

Страница 23: ...5 1 59 50 4 0588 3 8287 3 6084 1 70 1 62 51 3 9206 3 6943 3 4780 1 74 1 66 52 3 7878 3 5654 3 3531 1 78 1 70 53 3 6601 3 4416 3 2332 1 82 1 74 54 3 5374 3 3227 3 1183 1 87 1 78 55 3 4195 3 2085 3 0079 1 91 1 82 56 3 3060 3 0989 2 9021 1 95 1 85 57 3 1969 2 9935 2 8005 2 00 1 89 58 3 0919 2 8922 2 7029 2 04 1 93 59 2 9909 2 7948 2 6092 2 08 1 97 60 2 8936 2 7012 2 5193 2 13 2 01 61 2 8000 2 6112 2 ...

Страница 24: ... 0030 0 9061 0 8179 3 85 3 51 96 0 9756 0 8806 0 7941 3 90 3 55 97 0 9490 0 8558 0 7711 3 96 3 60 98 0 9232 0 8319 0 7489 4 01 3 64 99 0 8983 0 8088 0 7275 4 07 3 69 100 0 8741 0 7863 0 7067 4 12 3 74 101 0 8507 0 7646 0 6867 4 18 3 78 102 0 8281 0 7436 0 6672 4 23 3 83 103 0 8061 0 7233 0 6484 4 29 3 88 104 0 7848 0 7036 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957...

Страница 25: ...Dimensional drawings 23 Domestic air conditioner 8 Dimensional drawings 9 Center of gravity ...

Страница 26: ...only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among rooms to check the opening and closing operation of the electronic expansion valves of the individual units Diagnosis by service port pressure and operating current Check for insufficient ...

Страница 27: ...age 37 F23 25 Overcurrent protection for single phase of the compressor Page 43 10 3 1 Thermistor or Related Abnormality Indoor Display E1 Room temperature sensor failure E2 Heat exchange sensor failure Outdoor display LED1 flash 10 times Defrost temperature sensor failure LED1 flash 11 times Suction temperature sensor failure LED1 flash 12 times Ambient temperature sensor failure LED1 flash 13 ti...

Страница 28: ...ED1 flash 1 times Method of The Data detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Faulty EEPROM data Causes Faulty EEPROM Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Thermistor res...

Страница 29: ...switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Pull out the terminals on the indoor mainboard and reinsert them Turn off power switch and pull out the fan motor Measure the resistances between balck line 0V and white line 15V balck line 0V and red line 310V of indoor fan motor The resistances range is between 30KΩ wi...

Страница 30: ...n in the Cool state with the remote controller check whether the motor could run Remove fan motor after switch off the power Measure the resistances between black line 0V and red line 310V between black line 0V and white line 15V of the fan motor NO YES The resistances are greater than 40KΩ NO YES The motor of the outdoor unit is damaged and needs replacing NO the resistances between 0V and 310V b...

Страница 31: ... switch before connect or disconnect connector or else parts damage may be occurred NO YES Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing The compressor is started normally but malfunctions are reported after it has run for some time 1 The system may have bee...

Страница 32: ...roubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing Repair the power supply The system may have been over or under charged with gas which...

Страница 33: ...cted Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 1 Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2 Check whether the connected wire between IPM and outdoor Are they good Electrify the machine again and turn it on Check whether the voltage between 1 and 2 of Terminal ...

Страница 34: ...Supply voltage not as specified Causes the IPM module is broken the outdoor PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller Check whether the compressor is started normally Is it ok Yes Maybe there is some disturbance NO No 230 is ...

Страница 35: ...rred Electrify the machine again and turn it on with the remote controller then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit The temperature exceeds 110 shortly after the machine starts up 1 The cryogen may have been leaked during installation or there may be leakage in the piping system 2 There may be other causes to make the exhaust temperature ...

Страница 36: ...on Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Restart the a c and it becomes normally If starting up normally but malfunction occurs again after a while The outdoor mainboard needs dehumidification The outdoor mainboard needs dedust Check whether the linking cable between the indoor and outdoor is well connected or whether its core ...

Страница 37: ...he outdoor pcb is damaged replace it with a new one NO Measure the voltage Between 3 and 4 of IC9 on the Outdoor mainboard with a Multimete The voltage is a constant value of 0V DC to 5V DC The outdoor pcb is damaged replace it with a new one YES NO The outdoor pcb is well and then check the cable If the voltage is a constant value of 0V DC to 5V DC Or the voltage between Communication line red an...

Страница 38: ...essor Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Within 3 minutes after the machine is supplied with power and turned on with the remote controller check whether the compressor can start up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At first the compres...

Страница 39: ...Dirty heat exchanger Faulty heat exchange sensor Insufficient gas Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller check whether the wind temperature is below 65 The malfunction is reported after the machine has run for some time 1 Check room tem...

Страница 40: ...Wiring diagrams 38 Domestic air conditioner 11 Wiring diagrams 11 1 INDOOR UNIT ...

Страница 41: ...Circuit diagrams 39 Domestic air conditioner 11 2 Circuit Diagrams ...

Страница 42: ...Sincere Forever ...

Страница 43: ...contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING Version V1 D...

Страница 44: ...Removal Procedure 1 Domestic Air Conditioner Removal of front panel front panel Remove the foam cushion 2 Loosen the screw ...

Страница 45: ...Removal Procedure 2 Domestic Air Conditioner Lift up the control box cover 3 Loosen the screw 4 Lift up the control box cover 5 ...

Страница 46: ...hen release the pivots on both sides of the unit to remove the front panel Removal of front panel Removal Procedure 3 Domestic Air Conditioner Pull the wires out of the control box 6 Remove the air filters 1 ...

Страница 47: ...three 6 Removal Procedure 4 Domestic Air Conditioner Remove the casing 1 2 3 ...

Страница 48: ...horizontal flap flap Removal Procedure 5 Domestic Air Conditioner and the stepper motor Loosen the screws and remove the stepper motor ...

Страница 49: ...2 Every blade go round and round then move it Removal Procedure 6 Domestic Air Conditioner horizontal louver and control box Loosen the screws ...

Страница 50: ...3 7 Domestic Air Conditioner Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it ...

Страница 51: ...Removal Procedure 8 Domestic Air Conditioner motor cover motor cover ...

Страница 52: ...Removal Procedure 9 Domestic Air Conditioner ...

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