Haier AS25S2SF1FA-CW Service Manual Download

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Int

oduction

Domestic air conditioner

1 Introduction

1.1 Model name explanation

Indoor unit

Type of indoor unit:S (wall-mounted)

Nominal cooling capacity (9000BTU/h)

Self-Cleaning

Supermatch second generation normal efficiency

Platform of indoor units:F(F Plstform)

version 1

R32 refrigerant

220~240V50HZ/1ph

White

Summary of Contents for AS25S2SF1FA-CW

Page 1: ...se 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 All rights reserved Unauthorized copying and dis...

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: ... explanation 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 C W Self Cleaning Supermatch second generation normal efficiency Platform of indoor units F F Plstform version 1 R32 refrigerant 220 240V50HZ 1ph White ...

Page 4: ...t before 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 refriger...

Page 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...

Page 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 ...

Page 7: ...roperly 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 Damage...

Page 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...

Page 9: ...e 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 from off to on...

Page 10: ...W W P O C S R E E S 107 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 1 0 3 6 9 1 6 6 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 pressure Hi Mid Lo Sound power high 38 32 25 dB A White dB A 1 2 10 2 6 0 8 3 2 8870 2730...

Page 11: ...ble Mildew Proof Temperature control Microcomputer Control 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 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...

Page 12: ...Piping diagrams Domestic air conditioner 5 Piping diagrams 10 Electronic Expansion Valve Electronic Expansion Valve ...

Page 13: ...GHT LEFT STEP motor 5 CN21 white 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 Contr...

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

Page 15: ...Wiring Diagrams 13 Domestic air conditioner SWITCH UP DOWN STEPMOTOR CN14 LEFT RIGHT STEPMOTOR WIFI WIRED CONTROLLER Wiring Diagrams ...

Page 16: ...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 17: ...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 preventing...

Page 18: ...n 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 indoor fan wi...

Page 19: ...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 20: ...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 21: ...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 22: ...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 23: ... 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 24: ...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 25: ... 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 26: ...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 27: ...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 28: ...Seivice diagnosis Domestic air conditioner 8 Dimensional drawings 9 Center of gravity unit mm 26 ...

Page 29: ...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 30: ... Page 32 E14 Indoor fan motor malfunction Page 33 Outdoor Malfunction F12 1 Outdoor EEPROM error Page 32 F1 2 The protection of IPM Page 36 F22 3 Overcurrent protection of AC electricity for the outdoor model Page 37 F3 4 Communication fault between the IPM and outdoor PCB Page 39 F19 6 Power voltage is too high or low Page 40 F4 8 Overheat protection for Discharge temperature Page 41 F21 10 Defro...

Page 31: ...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 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 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 33: ...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 34: ... 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 35: ...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 36: ...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 37: ...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 38: ...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 39: ... 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 40: ...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 41: ...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 42: ...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 43: ...Table of Contents Domestic air conditioner 40 11 Wiring diagrams 11 1 INDOOR UNIT ...

Page 44: ...Circuit diagrams Domestic air conditioner 41 11 2 Circuit Diagrams ...

Page 45: ...tential 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 2018 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthoriz...

Page 46: ...Removal Procedure 1 Domestic Air Conditioner Removal of front panel front panel Loosen the screw ...

Page 47: ...Removal Procedure 2 Domestic Air Conditioner Lift up the control box cover 3 Remove the control box cover 2 ...

Page 48: ...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 49: ...four 5 Removal Procedure 4 Domestic Air Conditioner 1 2 3 four Remove the casing ...

Page 50: ...horizontal flap flap Removal Procedure 5 Domestic Air Conditioner and the stepper motor Loosen the screws and remove the stepper motor ...

Page 51: ...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 52: ...3 7 Domestic Air Conditioner Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it s ...

Page 53: ...Removal Procedure 8 Domestic Air Conditioner motor cover ...

Page 54: ...Removal Procedure 9 Domestic Air Conditioner ...

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