Haier T Series Service Manual
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Haier T Series Service Manual

Wall mounted type dc inverter
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SE RVICE MANUAL
Wall Mounted Type
DC Inverter
Model No.
AS68TEDHRA-CL
WARNING
This servic e informatio n is designed for experience d repai r technician s only and is not designe d for use by the genera l public.
It doe s not contai n warning s or caution s to advise non-technic al individu als of potentia l dangers in attemptin g to servic e a product.
Product s powered by electricit y shoul d 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 deal t with in this servic e infor mation by anyone else could result in seriou s injury or death
201 8 (Qing dao Haie r Air Condi tione r Genera l corp . , Ltd)
All right s reser ved. Unauthoriz ed copying and distributio n is a violati on of law
Haier Group
Version V1
Date 2018-11-26

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  • Page 1 Repai r the produc t or product s deal t with in this servic e infor mation by anyone else could result in seriou s injury or death 201 8 (Qing dao Haie r Air Condi tione r Genera l corp . , Ltd) All right s reser ved. Unauthoriz ed copying and distributio n is a violati on of law Haier Group Version V1 Date 2018-11-26...

  • Page 2: Table Of Contents

    Table of contents Contents 1. Introduction .................... 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.

  • Page 3: Introduction

    Introduction 1. Introduction 1.1 Model name explanation Self-Cleaning Apply toT1; 220~240V50HZ/1ph DC inverter Indoor units Version number 60T Platform Platform of indoor units: T (T platform) Nominal cooling capacity (24000BTU/h) Type of indoor unit: S (wall-mounted) Indoor unit Domestic air conditioner...
  • Page 4 Introduction 1.2 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.
  • Page 5 Introduction Warning Do not repair the electrical components with wet hands . Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
  • Page 6 Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.
  • Page 7 Introduction Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site, to prevent electrical shocks. Do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire.
  • Page 8 Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.

  • Page 9: Features

    Features 2.Features Super quiet: Lower noise operation condition A-PAM DC inverter:With adoption of S-TYPE,S-PAM and PHASE control technology to works more stably at low-frequency,and is more energy-saving,mor powerful at high frequency. Long distance air supplying:The indoor unit is improved by optimized motor,fan and air duct so as to provide long distance airflow with 12m + maximum.

  • Page 10: Specifications

    Specifications 3.Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l 7.0（2.2-8.5） 8.1(2.4-10.0) Capacity rated Btu/h 27640(8190-34120) 23880(7500-29000) 2.16 2.18 . 7.1 1963 ³ 2.8*10 ³ TECHNICAL SPECIFICATIONS 1125*240*335 1206*342*418 17.5 White Sound dB(A) 47/43/37 47/43/37 pressure(Hi/Mid/Lo) Sound level dB(A) Sound power(high)

  • Page 11: Sensors List

    Specifications TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 1200 1000/850/700 Speed(Hi/Mid/Lo) 1100/950/800 Type ML fin- 7HI-HX tube Heat exchanger c t i Removable/Washable/Mildew Proof Air filter Microcomputer Control Temperature control l l o 0010401715DG Note: the data are based on the conditions shown in the table below Conversation formulae n i l Kcal/h= KW×860...

  • Page 12: Piping Diagrams

    Piping diagrams 5 Piping diagrams Domestic air conditioner...

  • Page 13: Printed Circuit Board Connector Wiring Diagram

    Printed circuit board connector wiring diagram 6. Printed circuit board connector wiring diagram Connectors PCB(1) (Control PCB) For 18k / 24K 1) CN9 Connector for fan motor 2) CN6 Connector for heat exchanger thermistor and Room temperature thermistor 3) CN5’ Connector for UP&DOWN STEP motor 4) CN11 CN11’...
  • Page 14 Printed circuit board connector wiring diagram PCB(1) CN51 CN34 CN5’ CN11’ CN11 CN14 CN23 CN21 CON1 CON3 CON2 CN17 Domestic air conditioner...

  • Page 15: Functions And Control

    Functions and control Wiring diagrams INDOOR UNIT 0010561514 INDOOR UNIT DIAGRAM DC FAN MOTOR GENERATOR C0N3 C0N2 C0N1 FRESH AIR IRED CONTROLLER CN21 CN5' UP-DOWN STEPMOTOR CN11 CN11' CN52 LEFT STEPMOTOR CN23 CN51 ROOM CARD CN34 WIFI 1 2 3 4 SWITCH EMERGENCY CN14...
  • Page 16 Functions and control 7.Funcitions and control 7.1 Main functions and control specification 7.1.1 Automatic operation When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode.
  • Page 17 Functions and control 7.1.3 Dehumidifying mode. * temperature control range: 16---30 * temperature difference: Control feature: send the dehumidifying signal to the outdoor system. When Tr>Ts+2 , the compressor will be turned on, the indoor fan will operate at the set speed. When Tr is between the Ts and Ts+2 , the outdoor system will operate at the high dehumidifying frequency for 10 minutes and then at the low dehumidifying mode for six minutes.
  • Page 18 Functions and control malfunctions when dehumidifying. * Timing system on/off function. * Dormant control functio n. 7.1.4 Heating operation mode. * temperature control range: 16---30 * temperature difference: * control feature: the temperature compensation is automatically added and the system will send the heating signals to the outdoor system.
  • Page 19 Functions and control temperature compensation (4 ) will be added. When the status is switched off, the compensation will be erased. 7.1.5 Strength operation The system enters the mode after receiving the ‘strength signal’. Send strength operation signal to the outdoor system. The mode change finishes the strength operation.
  • Page 20 Functions and control 7.1.9 Dormant operation The dormant timing is an eight hours unadaptable one. The timing signs are shown on the V series board. (RC series show the dormant signal, the timing light is lighted on the 6 lights board). 2.1 Under the cooling/ dehumidifying operation, after the setting of the dormant operation, the set temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade 1 hour later.
  • Page 21 Functions and control 7.1.11 Low load protection control In order to prevent the frosting of the indoor heat interaction device, the outdoor system will be stopped if the indoor heat interaction temperature is below 1 centigrade for 5 minutes, but the fan will continue to operate.
  • Page 22 Functions and control 3 .indoor malfunction: Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store the code into E2 for the malfunction list resume. The indoor system will continue to operate according to the original status, the malfunction code will not be revealed or processed. 4.
  • Page 23 Functions and control R25 =10K B25 /50 =3700K 2% Temp.(( )) Max.(K ) Normal(K ) Min.(K ) Tolerance( ) 165.2170 147.9497 132.3678 -1.94 1.75 155.5754 139.5600 125.0806 -1.93 1.74 146.5609 131.7022 118.2434 -1.91 1.73 138.1285 124.3392 111.8256 -1.89 1.71 130.2371 117.4366 105.7989 -1.87...
  • Page 24 Functions and control 20.0176 19.0621 18.1358 -1.11 1.07 19.1149 18.2270 17.3646 -1.08 1.05 18.2580 17.4331 16.6305 -1.06 1.03 17.4442 16.6782 15.9315 -1.03 1.01 16.6711 15.9601 15.2657 -1.01 0.99 15.9366 15.2770 14.6315 -0.98 0.96 15.2385 14.6268 14.0271 -0.96 0.94 14.5748 14.0079 13.4510 -0.93 0.92...
  • Page 25 Functions and control 3.6601 3.4416 3.2332 -1.82 1.74 3.5374 3.3227 3.1183 -1.87 1.78 3.4195 3.2085 3.0079 -1.91 1.82 3.3060 3.0989 2.9021 -1.95 1.85 3.1969 2.9935 2.8005 -2.00 1.89 3.0919 2.8922 2.7029 -2.04 1.93 2.9909 2.7948 2.6092 -2.08 1.97 2.8936 2.7012 2.5193 -2.13 2.01...
  • Page 26 Functions and control 0.9756 0.8806 0.7941 -3.90 3.55 0.9490 0.8558 0.7711 -3.96 3.60 0.9232 0.8319 0.7489 -4.01 3.64 0.8983 0.8088 0.7275 -4.07 3.69 0.8741 0.7863 0.7067 -4.12 3.74 0.8507 0.7646 0.6867 -4.18 3.78 0.8281 0.7436 0.6672 -4.23 3.83 0.8061 0.7233 0.6484 -4.29 3.88...

  • Page 27: Center Of Gravity

    Seivice diagnosis 8.Dimensional unit:mm 9.Center of gravity unit:mm Domestic air conditioner...

  • Page 28: Service Diagnosis

    Service diagnosis 10. Service Diagnosis 10.1 Caution for Diagnosis The operation lamp flashes when any of the following errors is detected. 1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation. 2.
  • Page 29 Service diagnosis 10.3 Error Codes and Description indoor display Code indication Indoor displaying panel code indication Outdoor Reference fault description (LED1 Page Only For 498 and flash 498A display Other times) (Red/Green Time Run display Indoor and Communication fault Outdoor between indoor Page .39...
  • Page 30 Service diagnosis 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...
  • Page 31 Service diagnosis 10.3.2 EEPROM abnormal Indoor Display E4: Indoor EEPROM error Indoor display F12: Outdoor EEPROM error; Outdoor LED1 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...
  • Page 32 Service diagnosis 10.3.3 Indoor AC fan motor malfunction Indoor Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation Detection Malfunction when the detected rotation feedback signal don’t received in 2 minutes Decision Conditions Supposed...
  • Page 33 Service diagnosis 10.3.4 Outdoor DC fan motor fault Outdoor display LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
  • Page 34 Service diagnosis Check whether Terminal on the outdoor mainboard is well inserted. it is normal Reinsert the terminals Electrify the machine again and turn it on in The motor and the Cool state with the remote controller. outdoor pcb are check whether the motor could run.
  • Page 35 Service diagnosis 10.3.5 IPM protection Outdoor display: / F1 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...
  • Page 36 Service diagnosis 10.3.6 Over-current of the compressor Outdoor Display: F2 LED1 flash 3 or 24 or 25 times Method of The current of the compressor 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...
  • Page 37 Service diagnosis 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 fault Conditions...
  • Page 38 Service diagnosis 10.3.8 Power Supply Over or under voltage fault Outdoor display: LED1 flash 6 times The power supply is over voltage Method of An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit. Malfunction Detection Malfunction An voltage signal is fed from the voltage detection circuit to the microcomputer...
  • Page 39 Service diagnosis 10.3.9 Overheat Protection For Discharge Temperature Outdoor display: F4 LED1 flash 8 times Method of The Discharge temperature control is checked with the temperature being detected Malfunction by the Discharge pipe thermistor Detection Malfunction when the compressor discharge temperature is above 110 Decision Conditions Supposed...
  • Page 40 Service diagnosis 10.3.10 The communication fault between indoor and outdoor Indoor display outdoor display LED1 flash 15 times Method of Communication is detected by checking the indoor PCB and the outdoor PCB. Malfunction Detection Malfunction The outdoor PCB broken leads to communication fault. Decision The indoor PCB broken leads to communication fault.
  • Page 41 Service diagnosis Domestic air conditioner...
  • Page 42 Service diagnosis 10.3.11 Loss of synchronism detection Inverter side current detection is abnormal Outdoor Display LED1 flash 18 times LED1 flash 19 times Method of The position of the compressor rotor can not detected normally Malfunction Detection Malfunction when the wiring of compressor is wrong or the connection is poor; Decision or the compressor is damaged Conditions...
  • Page 43 Service diagnosis 10.3.12 High work-intense protection Outdoor display LED1 flash 21 times Method of High work-intense control is activated in the heating mode if the temperature Malfunction being sensed by the heat exchanger thermistor exceeds the limit. Detection Malfunction Activated when the temperature being sensed by the heat exchanger Decision rises above 65 twices in 30 minutes.

  • Page 44: Circuit Diagrams

    ircuit Diagra 11 Circ c uit Diag g rams omestic air conditioner...
  • Page 45 ircuit Diagra omestic air conditioner...
  • Page 46 Sincere Forever Haier Group Edited by : Shi Haiyan Haier Industrial Park, No.1, Haier Road Yang Xiaodong 266101, Qingdao, China_ Signed by : He shiquan //www.haier.com Http Approved by: Wu Hongjin Domestic air conditioner...
  • Page 47 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2018 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
  • Page 48 Removal Procedure Removal of front panel Indoor unit Step Procedure Points 1.Features 2.Remove the front panel Hold the front panel by the tabs on the both sides and lift it Domestic air conditioner...
  • Page 49 Removal Procedure Step Procedure Points Loosen the screw and lift Loosen the screw up the casing cover Loosen the screw and lift up the control box cover Loosen the screw Domestic air conditioner...
  • Page 50 Removal Procedure Remove the air filters and horizontal flap Step Procedure Points Pull the Harness out of the control box and then release the pivots on both sides of the unit to remove the front panel Remove the air filters Lift an air filter upwards slightly and then pull it out downwards...
  • Page 51 Removal Procedure Remove the casing Step Procedure Points Release the screw covers(3EA) Loosen the marked Screw (7EA) Domestic air conditioner...
  • Page 52 Removal Procedure Step Procedure Points Holes （4EA） ■When assembling, install the front Release the marked grille horizontally hooks (4EA) and then so as not to stuff Pull the front grille out the flap inside. ■When assembling, Horizontally and remove it make sure the four hooks are caught properly.
  • Page 53 Removal Procedure Release stepping motor and control box Step Procedure Points Hooks (3EA) Release the top cover of the control box hooks then remove it. Loosen screws (2EA) Pull the Harness out of the PCB unit and then Loosen control Harness: Box screws (2EA) .
  • Page 54 Removal Procedure Release stepping motor and control box Step Procedure Points Loosen the stepping motor screws (2EA), and then Release the stepping motor Domestic air conditioner...
  • Page 55 Removal Procedure Removal of Heat Exchanger Step Procedure Points Loosen the marked screws(2EA) Loosen the Screws (2EA) Pull mounting plate and heat exchanger bracket from Hook of the base frame then release them. Domestic air conditioner...
  • Page 56 Removal Procedure Step Procedure Points Release the fixture plate from the base frame hook and remove it. Domestic air conditioner...
  • Page 57 Removal Procedure Step Procedure Points Loosen the marked screws (7EA). And then Remove the heat exchanger Remove Fan Motor Loosen the marked screws(4EA) and release the cover of fan motor Domestic air conditioner...
  • Page 58 Removal Procedure Step Procedure Points Loosen the marked screw (2EA) of fan motor up bracket and remove it Screw of fan rotor Screw of Fan Motor up bracket Loosen the marked screw (1EA) of fan motor and remove fan motor ove it Fan motor bracket(UP) Fan motor assy...
  • Page 59 Removal Procedure Step Procedure Points Lift up the right part of the fan and remove it Remove horizontal louver and fan motor bracket Every blade go round and round, then move Domestic air conditioner...
  • Page 60 Removal Procedure Remove fan motor bracket and fan bearing Step Procedure Points Pull the hook of fan motor bracket and upward remove it Pull the hook of bearing bracket and upward remove it Domestic air conditioner...
  • Page 61 Removal Procedure Remove frame work board Step Procedure Points Loosen the marked screw of frame work board Screw of frame work board Pull the hook of frame work board, remove it Domestic air conditioner...
  • Page 62 Removal Procedure Remove drain pipe and drain pipe stem Step Procedure Points Loosen the marked screw of drain pipe and then remove it Pull the drain pipe stem from base frame and the remove it Domestic air conditioner...

This manual is also suitable for:

70t seriesAs68tedhra-cl

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