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Service diagnosis

Domestic air conditioner

10.3.5 IPM protection

Outdoor display: LED1  flash 2 times

Method of       IPM protection is detected by checking the compressor running condition and so on
Malfunction
Detection

Malfunction

■

The system leads to IPM protection due to over current

Decision

■

The compressor faulty leads to IPM protection

Conditions

■

circuit component of IPM is broken and led to IPM protection

Supposed

■

IPM protection dues to the compressor faulty

Causes

■

IPM protection dues to faulty PCB of IPM module

■

Compressor wiring disconnected

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,If malfunctions

are reported before or upon the compressor

being started up,

IPM Module is damaged and

needs replacing.

、

The system may have been over or under charged with gas, which can be judged through the pressure of the

measuring system.

、

The shaft of compressor is seized and the compressor needs replacing.

YES

The compressor is started normally, but

malfunctions are reported after it has run for some

time.

Malfunction unsolved

Содержание AS12TB3HRA

Страница 1: ...gers in attemptin g to servic e a product Product s powered by electricit y should be service d or repaire d only by experience d professiona l technicia ns Any attemp t to service or Repai r the produc t or product s dealt with in this servic e information by anyone else could result in seriou s injury or death WARNING 2015 Qingdao Haier Air Condi tioner Genera l corp Ltd All rights reserved Unau...

Страница 2: ...troduction 1 2 Features 7 3 Specifications 8 4 Sensors list 9 5 Piping diagrams 10 6 Printed circuit board connector wiring diagram 11 7 Functions and control 8 Dimensional drawings 9 Center of gravity 10 Service Diagnosis 11 Circuit diagrams 14 44 27 26 26 ...

Страница 3: ...ion 1 1 Model name explanation A S 1 2 T B 3 H R A Indoor unit Type of indoor unit S wall mounted Nominal cooling capacity 12000BTU h Platform of indoor units T T platform 35TPlatform Version number Indoor units DC inverter Apply toT1 220 240V50HZ 1ph ...

Страница 4: ...efore disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant...

Страница 5: ...ing 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 t...

Страница 6: ...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 results ...

Страница 7: ...operly 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 Damaged...

Страница 8: ...k 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 informa...

Страница 9: ... comfortable level when you set the sleep mode during night sleep Super match One outdoor unit can match two or more indoor unit DIY auto mode Adjust the last fixed operation mode automatically Turbo mode Quick cooling or heating Auto restart Automatic return to previous operation conditions after sudden power blackout 24 hours timer Use the timer function to set on or off or from on to off or fro...

Страница 10: ... a R n o i t p m u s n o C r e w o P 70 3 21 3 W W P O C S R E E S 545 h W K n o i t p m u s n o c y g r e n e l a u n n A h m l a v o m e R e r u t s i o M TECHNICAL SPECIFICATIONS m m D W H s n o i s n e m i D Packaged Dimensions m m D W H G K t h g i e W G K t h g i e w s s o r G r o l o C Sound level Sound pressure Hi Mid Lo 1 6 10 500 dB A White 3 5 1 0 3 6 11950 3410 12290 3 7 1 3 3 9 12630 ...

Страница 11: ...emovable Washable Mildew Proof Temperature control Microcomputer Control E H R Y l e d o m r e l l o r t n o c e t o m e R Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i t a e h g n i l o o c 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 1 r o f d e s u s t I m and pipe sensor o o e r u...

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

Страница 13: ...L 7 CN17 Connector for power L wire 8 CN7 Connector for display board 9 CON1 CON3 Connector for ions generator 10 CN23 Connector for communicate between the indoor board and the outdoor board 11 CN36 Connector for long range control 12 CN35 Connector for Net Module 13 CON2 Connector for fresh air Note Other designations PCB 1 Indoor Control PCB 1 CN48 Connector for Forced operation ON OFF switch 2...

Страница 14: ...Printed circuit board connector wiring diagram 12 Domestic air conditioner PCB 1 ...

Страница 15: ...LACK BL BLUE W WHITE Y G YELLOW GREEN 80 120 POWER SUPPLY TO OUTDOOR UNIT 1 N C 3 L 2 W B Y G Y G GND CN48 AMBIENT TEMP SENSOR PIPING TEMP SENSOR CN6 CN12 Right stepmotor left stepmotor CN11 R C0N2 BL Fresh air L CN21 N S R W CN18 CN23 WIFI The Ion Generator Fresh air WIFI Room card marked with is optional CN35 M Fan motor CN8 CN9 BL BL Transformer R R CN3 CN36 Central controller CN17 L CN21 N CN1...

Страница 16: ...opened the indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system The system will keep the original status if Tr Ts Airflow speed control temperature difference 1 Automatic When Tr Ts 3 high speed When Ts 1 Tr Ts 3 medium speed When Tr Ts 1 low speed When the sensor is off low speed When the airflow speed has no delay from the high to low switching the spee...

Страница 17: ...utes before the next switch Manual When the sensor is off or Tr Ts 3 the manual operation can not be made obligatory automatic operation Airgate location control the location for the airgate can be set according to your needs Defrosting function preventing the frosting on the indoor heat exchanger when cooling or dehumidifying When the compressor works continuously for 1 6 minutes adaptable in EEP...

Страница 18: ...the outdoor system Residue heat sending The indoor fan will send the residue heat at a low speed for 12 seconds If other conditions are satisfied when the compressor stops the indoor system will operate at a light speed The indoor fan will stop when the coil temperature is below the heat start temp 4 Defrosting When the system receives the defrosting signal from outdoors the indoor fan will stop a...

Страница 19: ...n the fan operates 7 1 8 Timing You can set 24 hours on off timing accordingly After the setting the timing indicator will be lightened Also the light will be turning off after the timing is finished The followings are several timing methods 1 system on timing The timing indicator will be lightened and the indoor system is under the waiting mode The light will be turned off when the timing is fini...

Страница 20: ...peration the press on the urgency key will stop it Under the system off mode the display screen will show automatic running sign Under the system off mode the system will not receive the remote control signal if the press on the urgency key doesn t last for 15 seconds or if the key is loosened Urgency operation If you press the urgency key for less than 5 seconds the buzzer will ring when you pres...

Страница 21: ...control only receives the signals for stop According to the signals the malfunction resume presentation finishes The resume restores after the power supply restores 7 1 15 Abnormality confirmation approaches 1 indoor temperature sensor abnormality Under the operation the normal temperature ranges from 120 degree to 30 degree When the temperature goes beyond this range the abnormality can be confir...

Страница 22: ...indoor system should be as the followings Remote control 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 18 Test program First connect the test program terminal on the mainboard Then connect the...

Страница 23: ...8 19 99 66 4 19 9 137 87 29 19 09 67 4 04 8 130 096 30 18 23 68 3 9 7 122 799 31 17 42 69 3 76 6 115 946 32 16 65 70 3 63 5 109 51 33 15 97 71 3 5 4 103 462 34 15 22 72 3 38 3 97 779 35 14 56 73 3 26 2 92 437 36 13 93 74 3 15 1 87 415 37 13 34 75 3 04 0 82 691 38 12 77 76 2 94 1 78 248 39 12 23 77 2 84 2 74 067 40 11 71 78 2 74 3 70 133 41 11 22 79 2 65 4 66 43 42 10 76 80 2 56 5 62 943 43 10 31 6...

Страница 24: ... 15 70 0342 64 3023 58 9863 1 66 1 54 14 66 3463 61 0123 56 0565 1 64 1 52 13 62 8755 57 9110 53 2905 1 62 1 51 12 59 6076 54 9866 50 6781 1 60 1 49 11 56 5296 52 2278 48 2099 1 58 1 47 10 53 6294 49 6244 45 8771 1 56 1 46 9 50 8956 47 1666 43 6714 1 54 1 44 8 48 3178 44 8454 41 5851 1 51 1 42 7 45 8860 42 6525 39 6112 1 49 1 40 6 43 5912 40 5800 37 7429 1 47 1 39 5 41 4249 38 6207 35 9739 1 45 1 ...

Страница 25: ... 9 8975 9 5974 9 2980 0 76 0 76 27 9 5129 9 2132 8 9148 0 80 0 80 28 9 1454 8 8465 8 5496 0 84 0 83 29 8 7942 8 4964 8 2013 0 87 0 86 30 8 4583 8 1621 7 8691 0 91 0 90 31 8 1371 7 8428 7 5522 0 95 0 93 32 7 8299 7 5377 7 2498 0 98 0 97 33 7 5359 7 2461 6 9611 1 02 1 00 34 7 2546 6 9673 6 6854 1 06 1 04 35 6 9852 6 7008 6 4222 1 10 1 07 36 6 7273 6 4459 6 1707 1 13 1 11 37 6 4803 6 2021 5 9304 1 17...

Страница 26: ...4 2 38 70 2 0983 1 9393 1 7908 2 59 2 42 71 2 0337 1 8778 1 7324 2 63 2 46 72 1 9714 1 8186 1 6761 2 68 2 50 73 1 9113 1 7614 1 6219 2 73 2 54 74 1 8533 1 7064 1 5697 2 78 2 58 75 1 7974 1 6533 1 5194 2 83 2 63 76 1 7434 1 6021 1 4710 2 88 2 67 77 1 6913 1 5528 1 4243 2 92 2 71 78 1 6409 1 5051 1 3794 2 97 2 75 79 1 5923 1 4592 1 3360 3 02 2 80 80 1 5454 1 4149 1 2942 3 07 2 84 81 1 5000 1 3721 1 ...

Страница 27: ...6 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667 0 5043 4 80 4 31 113 0 6200 0 5518 0 4907 4 86 4 36 114 0 6043 0 5374 0 4775 4 92 4 41 115 0 5891 0 5235 0 4648 4 98 4...

Страница 28: ...Seivice diagnosis Domestic air conditioner 8 Dimensional drawings unit mm 9 Center of gravity unit mm 26 865 290 200 865 200 0 290 330 95 0 128 ...

Страница 29: ...door PCB is broken Operation sometimes stops Check the power supply A power failure of 2 to 10 cycles can stop air conditioner operation Equipment operates but does not cool or does not heat 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 amo...

Страница 30: ... electricity for the outdoor model Page 35 4 Communication fault between the IPM and outdoor PCB Page 37 Power voltage is too high or low Page 38 8 Overheat protection for Discharge temperature Page 39 10 Defrost temperature sensor failure Page 29 1 1 Suction temperature sensor failure Page 29 12 Ambient temperature sensor failure Page 29 13 Discharge temperature sensor failure Page 29 18 deviate ...

Страница 31: ...92V or less than 0 08V during compressor n o i t a r e p o n o i s i c e D Conditions 1RWH The values vary slightly in some models Supposed Ŷ Faulty connector connection Causes Ŷ Faulty thermistor Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector o...

Страница 32: ...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 Ŷ Faulty EEPROM data Causes Ŷ Faulty EEPROM Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard Ŷ ...

Страница 33: ... to faulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Electrify the machine again and turn it on in the cooling operation Measure voltage between the positions 1and 3 of Terminal CN5 on the indoor PCB the voltage is about 90 220vac check whether mo...

Страница 34: ... condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Ƶ DC fan motor protection dues to the DC fan motor faulty Causes Ƶ DC fan motor protection dues to faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Страница 35: ...an run Yes Measure the voltage between 3 and 6 of the terminal about 0 5v Is it normal N0 the motor of the outdoor unit is damaged and needs replacing Measure the voltage between 1 and 3 of the terminal of fan motor on the mainboard about DC310V Measure the voltage between 3 and 4 of the terminal about DC15V Measure the voltage between 5 and 3 of the terminal about 1 6v NO Is it normal The mainboa...

Страница 36: ... faulty PCB of IPM module Compressor wiring disconnected 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 If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing 1 The system may have ...

Страница 37: ...r is too high Malfunction Detection Malfunction when the IPM Module is damaged Decision or the compressor is damaged Conditions power supply voltage is too low or too high Supposed Faulty IPM Module Causes Faulty compressor Faulty power supply Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Страница 38: ...ressor 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 can be judged through the pressure of the measuring system YES NO Yes NO The compressor is started normally but malfunctions are reported after it has run for some time Check the power supply is too low or too high NO ...

Страница 39: ...ted 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 C...

Страница 40: ...pply 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 ok...

Страница 41: ...red 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 t...

Страница 42: ...isconnected Causes Ŷ The indoor PCB is broken Ŷ The outdoor PCB is broken Ŷ The Module PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred NO A Yes NO Yes No YES Restart the a c and it becomes normally If starting up normally but malfunction occurs again after a while Check whether the linking cable betw...

Страница 43: ...outdoor unit with a multimeter If 230VAC is available but 310DC not the power module is damaged replace it with a new one Test the outdoor power supply 230VAC and 310VDC with a multimeter The outdoor mainboard is damaged replace it with a new one The indoor mainboard is damaged replace it with a new one If the value varies between 0 and 80 VAC the outdoor mainboard is damaged replace it with a new...

Страница 44: ...r 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 compressor ...

Страница 45: ...xchanger Ƶ Faulty heat exchange sensor Ƶ 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 65ć The malfunction is reported after the machine has run for some time 1 ǃ Check room temperat...

Страница 46: ...119 10K 1 42 COM1 1 43 DIG1 1 42 COM1 1 43 DIG1 XT1 CSTLS8M00G56 R508 10K R507 10K 1 23 LSTEP_D 1 22 LSTEP_C 1 21 LSTEP_B 1 13 BUZZ 1 15 RSTEP_A 12V 5V J9 J24 E ON OFF J9 J24 ON ON ON EK 387 317 OFF OFF OFF C4 0 1uF C28 0 01uF C11 0 1uF C12 0 1uF C30 0 1uF C19 0 001uF C39 0 1uF A0 1 A1 2 A2 3 GND 4 SDA 5 SCL 6 WP 7 VCC 8 IC4 CAT24C04 SOIC8 BUZZ1 PKM13EPY 4002 VREF 61 KI0 AN8 P10 49 AN7 P00 50 AN6 ...

Страница 47: ...IC7 R3BMF51 1A 600V C1 0 1uF C6 0 1uF 0805 C21 0 1uF C31 0 1uF 0805 C34 0 1uF C35 0 001uF E2 100uF 16V 105 E10 100uF 16V 105 C26 0 01uF C41 0 1uF C44 0 001uF C43 0 001uF 2 36 TX 2 35 RX LED1 220V N 5V 5V R4 330Ω 0805 IC2 TLP421 IC1 TLP371 R1 330K 0805 R12 2K R7 10K R17 2 2K 0805 D1 1N4007 D2 1N4007 R8 6 8K 2W 1 CN23 D250 室内外通讯 C20 0 001uF 0805 C3 0 001uF 0805 C2 0 01uF 0805 φ3 绿色散光低亮 1 CN18 D250...

Страница 48: ...tic air conditioner Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China_ Http www haier com Edited by Signed by Approved by Jing Yanqin Yang Xiaodong He shiquan Wu Hongjin ...

Страница 49: ...gers 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 2015 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying ...

Страница 50: ...Removal Procedure 1 Domestic Air Conditioner Removal of front panel front panel Remove the foam cushion 2 Loosen the screw ...

Страница 51: ...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 52: ...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 53: ...three 6 Removal Procedure 4 Domestic Air Conditioner Remove the casing 1 2 3 ...

Страница 54: ...horizontal flap flap Removal Procedure 5 Domestic Air Conditioner and the stepper motor Loosen the screws and remove the stepper motor ...

Страница 55: ...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 56: ...3 7 Domestic Air Conditioner Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it ...

Страница 57: ...Removal Procedure 8 Domestic Air Conditioner motor cover motor cover ...

Страница 58: ...Removal Procedure 9 Domestic Air Conditioner ...

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