Haier AS25S2SF1FA-S Service Manual Download | Manualshive

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Removal Procedure

1

Domestic Air Conditioner

Removal of front panel

front panel

Loosen the screw

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Summary of Contents for AS25S2SF1FA-S

Page 1: ...al 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 All rights reserved Unauthorized copying and distribution is a...

Page 2: ...ntroduction 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 Wiring diagrams 14 40 26 25 25 ...

Page 3: ...ion 1 R32 refrigerant 220 240V50HZ 1ph A S 2 5 S 2 S F 1 F Indoor unit Type of indoor unit S wall mounted Nominal cooling capacity 9000BTU h A S silver Supermatch second generation normal efficiency Platform of indoor units F F Plstform version 1 R32 refrigerant 220 240V50HZ 1ph A S 3 5 S 2 S F 1 F Indoor unit Type of indoor unit S wall mounted Nominal cooling capacity 12000BTU h ...

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Page 9: ...setting temperature and the indoor noise can be adjusted to a more 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 time...

Page 10: ...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 5 9 2 5 9 1 5 5 8 m m D W H s n o i s n e m i D Packaged Dimensions 9 8 3 3 8 2 2 5 9 m m D W H 5 9 G K t h g i e W 0 2 1 G K t h g i e w s s o r G r o l o C Sound level Sound peessure Hi Mid Lo Sound power high 39 33 26 55 38 32 25 dB A White dB A 1 2 10 1 6 10 2 6 0 8 3 2 8870 2730 10920 0 65 8 5 20 25 35 144 3 5 1 0 ...

Page 11: ...Removable Washable Mildew Proof Temperature control Microcomputer Control 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 r o f d e s u s t I r o s n e s m o o R e r u t a r e p m e t m o o r g n i t c e t e d Pipe senso...

Page 12: ... Piping diagrams Domestic air conditioner 5ˊPiping diagrams 10 ...

Page 13: ...ite line CN52 black line Connector for indoor terminal N and L 6 CN8 Connector for display board 7 CN23 red line Connector for communicate between the indoor board and the outdoor board 8 CN36 Connector for long range control 9 CN34 Connector for wifi Module 10 CN2 Connector for wired controller 11 CN51 Connector for room card Note Other designations PCB 1 Indoor Control PCB 1 CN14 Connector for F...

Page 14: ...Domestic air conditioner 12 CN8 CN9 CN21 CN36 CN23 CN6 CN52 CN5 CN14 CN2 CN34 CN15 CN11 CN51 CN5 CN11 PCB ...

Page 15: ...ate 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 speed should be delayed for 3 minut...

Page 16: ...d mode When the airflow speed has no delay from the high to low switching the speed should be delayed for 3 minutes remain at high speed for 3 minutes 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 preventi...

Page 17: ...roof operation 1 The fan control functions as below Residue heat sending The indoor fan will send the residue heat at a low speed for 20 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 THHOT0 Defrosting When the system receives the defrosting signal from outdoors the ...

Page 18: ...no Aqua will be turned on when 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 turne...

Page 19: ...er 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 press the on off key The system will enter the urgency ope...

Page 20: ...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 confirmed If the temperature goes back i...

Page 21: ...e 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 system to the power circuit The test program will operate as follows HV series display The buzzer rings for one time the signal will be sent to outdoor system for 0 5 second the violet is sent...

Page 22: ... 63 4 68 12 164 399 26 21 94 64 4 51 11 154 983 27 20 94 65 4 35 10 146 153 28 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 7...

Page 23: ...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 37 4 39 3792 36 7676 34 2983...

Page 24: ... 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 1 14 38 6 2437 5 9687 5 7007 1 21 1 18 39 6 0170 5 7454 5 4812 1 25 1 22 40 5 7997 5 5316 ...

Page 25: ...614 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 2540 3 12 2 88 82 1 4562 1 3308 1 2151 3 17 2 93 83 1 4139 1 2910 1 1776 3 22 2 97 84 1 3730 1 2525 1 1415 3 27 3 01 85 1 ...

Page 26: ...61 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 45 116 0 5743 0 5100 0 4524 5 04 4 50 117 0 5600 0 4968 0 4404 5 10 ...

Page 27: ...Service diagnosis Domestic air conditioner 8 Dimensional drawings 9 Center of gravity unit mm 25 ...

Page 28: ...pplied Check the indoor PCB Check to make sure that the indoor 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 ...

Page 29: ...mpressor discarging temperature protection Page 35 F8 Trouble record 9 Abnormal of DC motor Page 30 F21 Directly display 10 Abnormal of piping sensor Page 28 F7 Directly display 11 Suction temperature sensor failure Page 28 F6 Directly display 12 Abnormal of outdoor ambient sensor Page 28 F25 Directly display 13 Abnormal of compressor discharge sensor Page 28 F13 Trouble record 16 Lack of refriger...

Page 30: ...nput 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 Thermistor resistance check method Remove the connector of...

Page 31: ... 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 Replace the indoor or outdoor mainboard ...

Page 32: ...ol voltage pins 4 5 4 Check rotation command voltage output pins 4 6 5 Check rotation pulse input pins 4 7 Notes the a c is electrifying don t pull out or insert the terminals of the motor else the motor would be damaged Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 10 3 4 Outdoor DC fan motor fault Outdoor disp...

Page 33: ... motor of the outdoor unit is damaged and needs replacing NO the resistances between 0V and 310V between 0V and 15V of the fan terminal of outdoor pcb are greater than 10MΩ The module pcb is damaged replace it with a new one The outdoor pcb is damaged replace it with a new one YES The motor and outdoor pcb are well YES NO 10 3 5 IPM protection Outdoor display LED1 flash 2 times Method of IPM prote...

Page 34: ...r electronic expansion valve faulty or under charged with gas which can be judged through the pressure of the measuring system 2 The shaft of compressor is seized and the compressor needs replacing Test IPM module resistance between P and U V W Then test IPM module resistance between N and U V W The resistances range are between 1MΩ with 10MΩ and they are similar NO YES 10 3 6 Over current of the ...

Page 35: ...ted after it has run for some time Check the power supply is too low or too high NO 10 3 7 The communication fault between IPM and outdoor PCB Outdoor display LED1 flash 4 times Method of Communication is detected by checking the IPM module and the outdoor PCB Malfunction Detection Malfunction The outdoor PCB broken leads to communication fault Decision The IPM module broken leads to communication...

Page 36: ...ly 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 Y...

Page 37: ...d 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 too...

Page 38: ... 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 wi...

Page 39: ...tdoor 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 and N w...

Page 40: ...lty 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 start...

Page 41: ...irty 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 temp...

Page 42: ...Table of Contents Domestic air conditioner 40 11 Wiring diagrams 11 1 INDOOR UNIT SWITCH UP DOWN STEPMOTOR LEFT RIGHT STEPMOTOR WIFI WIRED CONTROLLER R W BL CONDENSER MAG SWITCH SW1 CN14 ...

Page 43: ...Circuit diagrams Domestic air conditioner 41 11 2 Circuit Diagrams ...

Page 44: ... 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 2017 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying and ...

Page 45: ...Removal Procedure 1 Domestic Air Conditioner Removal of front panel front panel Loosen the screw ...

Page 46: ...Removal Procedure 2 Domestic Air Conditioner Lift up the control box cover 3 Remove the control box cover 2 ...

Page 47: ...he pivots on both sides of the unit to remove the front panel Remocal of front panel Removal Procedure 3 Domestic Air Conditioner Pull the wires off the panel and then release Remove the air filters 1 4 ...

Page 48: ...four 5 Removal Procedure 4 Domestic Air Conditioner 1 2 3 four Remove the casing ...

Page 49: ...horizontal flap flap Removal Procedure 5 Domestic Air Conditioner and the stepper motor Loosen the screws and remove the stepper motor ...

Page 50: ...2 Every blade go round and round then move it Removal Procedure 6 Domestic Air Conditioner horizontal louver and control box Loosen the screw ...

Page 51: ...3 7 Domestic Air Conditioner Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it s ...

Page 52: ...Removal Procedure 8 Domestic Air Conditioner motor cover ...

Page 53: ...Removal Procedure 9 Domestic Air Conditioner ...

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