Haier AS35RHBHRA Service Manual
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Haier AS35RHBHRA Service Manual

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SERVICE MANAUL
Wall Mounted Type
DC Inverter
Model No.AS35RHBHRA
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not 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
2022 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Version V1
Date 2022-09-28

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Summary of Contents for Haier AS35RHBHRA

  • Page 1 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2022 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...

  • Page 2: Table Of Contents

    Table of contents Contents 1. Introduction .................... 1 2. Features ....................6 3. Specifications ..................7 4. Sensors list.................... 8 5. Piping diagrams ..................9 6. Printed circuit board connector wiring diagram........10 7. Functions and control ................8. Dimensional drawings ................9.

  • Page 3: Introduction

    Intuoduction 1 Introduction 1.1 Model name explanation Apply toT1; 220~240V50HZ/1ph DC inverter Indoor units Version number 20 capicity Platform of indoor units: R(R platform) Nominal cooling capacity (12000BTU/h) Type of indoor unit: S (wall-mounted) Indoor unit Domestic air conditioner...
  • Page 4 Intuoduction 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 ●...
  • Page 5 Intuoduction When disconnecting the suction or discharge pipe of the compressor 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.
  • Page 6 Intuoduction itself is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters, stoves and ranges. When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent children from swallowing it.
  • Page 7 Intuoduction 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. ●...

  • Page 8: Features

    Self-Clean Freezes the evaporator with moisture in the air, and then removes away dirt in melting, ensuring clean air out of the air conditioner. Wi-Fi Control Download the Haier hOn App to an Apple or Android smart device, and link the equipment to the smart device for system control from whenever and wherever you want.

  • Page 9: Specifications

    Specifications 3.Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE Phase Frequency Voltage 220~240V NOMINAL CAPACITY and NOMINAL INPUT cooling heating 3.2(0.8-3.5) 3.4(0.8-3.6) Capacity rated Btu/h 10920(2730-11940) 11600(2730-12280) Power Consumption(Rated) 1.14 1.21 EER/ COP 2.81 3.21 Annual energy consumption Moisture Removal m³/h 1.4*10 ³ TECHNICAL SPECIFICATIONS 705/193/265 Dimensions...

  • Page 10: Sensors List

    Sensors list TECHNICAL SPECIFICATIONS-PARTS cooling heating Type Cross flow fan Motor output Air flow rate(high) m³/h Speed(super/high/low) 1200/1180/950 Type ML fin-φ7HI-HX tube Heat exchanger Segment *stage*fitch 3*12*1.4 Air direction control Right,Left,Horizontal,Downward Removable/Washable/Mildew Proof Air filter Note: the data are based on the conditions shown in the table below Conversation formulae cooling heating...

  • Page 11: Piping Diagrams

    Piping diagrams 5 Piping diagrams 9.52CuT 6.35CuT 9.52CuT 6.35CuT Domestic air conditioner...

  • Page 12: Printed Circuit Board Connector Wiring Diagram

    4) Jumper J1 and J2 combined control, corresponding to different series of display boards; ON means keep; OFF means cut DISPLAY SERIES 387/1045/989 325/498 UNIT MOUDLE PCB MOUDLE J40 J41 J42 DISPLAY MOUDLE J1 AS35RHBHRA 0011800977K(B) OFF OFF OFF 0011800989 ON ON Domestic air conditioner...
  • Page 13 Printed circuit board connector wiring diagram Domestic air conditioner...
  • Page 14 Printed circuit board connector wiring diagram Wiring diagrams Domestic air conditioner...

  • Page 15: Functions And Control

    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 16 Functions and control 7.1.3 Dehumidifying mode. * temperature control range: 16---30℃ * temperature difference: ±1℃ 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 17 Functions and control If Tr<Ts-1℃, the outdoor system will be turned on again, the indoor fan will be at the cold air proof mode. *Indoor fan control manual control: You can choose high, medium, low and automatic speed control. Automatic: When Tr<Ts, high speed. When Ts≤Tr≤Ts+2℃, medium speed.
  • Page 18 Functions and control Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strength operation. When the system is at the automatic option with the strength/ mute function, if the system enters the cooling mode, the cooling strength/ mute function will be offered; if the system enters the heating mode, then the heating strength/ mute function will be offered;...
  • Page 19 Functions and control 2 centigrade after 1 hour’s operation and will fall 2 centigrade 1 hour later. 3 hours after the preceding operations, the set temperature will be raised for 1 centigrade and the system will keep this status for 3 hours and then close down.
  • Page 20 Functions and control 7.1.12 High load protection control The outdoor system will be stopped if the coil temperature is above 65℃ for 2 minutes. The indoor fan will be controlled by the thermostat. The outdoor system can be restarted when the coil temperature is below 42℃...
  • Page 21 Functions and control can be confirmed and reported and the outdoor system will be stopped. 7.1.16 Single indoor system operation * Enter condition: First, set the high speed airflow and 30 centigrade set temperature, then press the dormant keys for 6 times within 7 seconds, the system will feedback with 6 rings. * After the system enters the separate indoor system operation mode, the indoor system will operate according to the set mode and neglect the communication signals of the outdoor system.
  • Page 22 Functions and control R25℃=23KΩ+2% Temp.(℃) Resistor（KΩ） Temp.（℃） Resistor（KΩ） Temp.（℃） Resistor（KΩ） 266.905 32.215 250.866 30.671 5.87 235.895 29.21 5.65 221.911 27.828 5.44 208.838 26.521 5.24 196.609 25.283 5.04 185.163 24.111 4.86 174.443 4.68 164.399 21.94 4.51 154.983 20.94 4.35 146.153 19.99 4.19 137.87 19.09...
  • Page 23 Functions and control R25℃=10KΩ B25℃/50℃=3700KΩ Temp.((℃)) Max.(KΩ) Normal(KΩ) Min.(KΩ) 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 1.70 122.8484 110.9627 100.1367 -1.85 1.69 115.9272 104.8882 94.8149...
  • Page 24 Functions and control 20.9688 19.9409 18.9463 -1.13 1.09 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...
  • Page 25 Functions and control 3.7878 3.5654 3.3531 -1.78 1.70 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...
  • Page 26 Functions and control 1.0030 0.9061 0.8179 -3.85 3.51 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...

  • Page 27: Dimensional Drawings

    Service diagnosis 8. 8.Dimension 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.When a signal transmission error occurs between the indoor and outdoor units.In either case, conduct the diagnostic procedure described in the following pages.
  • Page 29 Service Diagnosis Error Codes and Description indoor display 10.4 Split board: LED1 light of outdoor PCB flash; All-in-one board: LED2 light of outdoor PCB flash OUTDOOR ERROR CODE FAULT DESCRIPTION SPARE PART (LED FLASH TIMES) Indoor PCB Indoor and Communication fault between indoor Outdoor PCB Outdoor and outdoor units...
  • Page 30 Service Diagnosis OUTDOOR ERROR CODE FAULT DESCRIPTION SPARE PART (LED FLASH TIMES) Lack of refrigerant Refrigerant 4-way valve reverse failure 4-way valve Power over/under voltage protection Power module Outdoor pipe temperature sensor High pressure protection Outdoor PCB Outdoor coil temperature sensor Defrost temperature sensor Power module Outdoor Alternating current over...
  • Page 31 Service Diagnosis 10.4.1 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 Malfunction...
  • Page 32 Service Diagnosis 10.4.2 EEPROM abnormal E4: Indoor EEPROM error Indoor Display Indoor display F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times Method of Malfunction The Data detected by the EEPROM are used to determine MCU Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
  • Page 33 Service Diagnosis Indoor DC fan motor malfunction 10.4.3 Indoor Display E14 Indoor DC fan motor malfunction Method of When the fan motor is running, the speed detected by the Hall IC is used to judge the Malfunction abnormal operation of the fan motor Detection Malfunction When the detected rotation feedback signal don’t received in 2 minutes...
  • Page 34 Service Diagnosis Turn on the unit and check if Measure whether there is a voltage the motor can run pulse (0-15VDC) between 4 and 5 of the CN9 terminal on the indoor PCB The indoor motor is damaged Is it ok? and need replace The indoor PCB is damaged and need replace...
  • Page 35 Service Diagnosis 10.4.4 Outdoor DC fan motor fault Outdoor display F8 LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on Detection Malfunction When the detected rotation feedback signal don’t received i n2 minutes Decision Conditions ■...
  • Page 36 Service Diagnosis The resistances The module PCB is between black line and The resistances are damaged, replace it red line, between black more than 40kΩ with a new one. line and white line of the fan terminal of outdoor PCB are greater than 10MΩ...
  • Page 37 Service Diagnosis 10.4.5 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 The system leads to IPM protection due to over current Malfunction Decision The compressor faulty leads to IPM protection Circuit component of IPM is broken and led to IPM protection...
  • Page 38 Service Diagnosis 10.4.6 Over-current of the compressor Outdoor Display F22, F2, F23 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 or the compressor is damaged. Decision Conditions Power supply voltage is too low or too high...
  • Page 39 Service Diagnosis 10.4.7 The communication fault between IPM and outdoor PCB Outdoor display: F3 LED1 flash 4 times Method of Malfunction Communication is detected by checking the IPM module and the outdoor PCB Detection Malfunction ■ The outdoor PCB broken leads to communication fault Decision ■...
  • Page 40 Service Diagnosis 10.4.8 Power Supply Over or under voltage fault Outdoor display: F19 LED1 flash 6 times An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit. Method of The power supply is over voltage Malfunction Detection Malfunction...
  • Page 41 Service Diagnosis 10.4.9 Overheat Protection for Discharge Temperature Outdoor display: F4 LED1 flash 8 times Method of Check the control of the discharge temperature by the temperature detected by the Malfunction discharge pipe thermistor Detection Malfunction When the compressor discharge temperature is above 110℃ Decision Conditions ■...
  • Page 42 Service Diagnosis 10.4.10 The communication fault between indoor and outdoor Split board Indoor display E7 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 43 Service Diagnosis Check the indoor PCB: only indoor charged measure the voltage between 3 and 4 of IC6 on the indoor PCB with a universal meter. And measure the voltage between CN23(S) and CN17 (L) with a universal meter. If the voltage is a constant value from DC 0V to DC 5V.Or The indoor PCB is the voltage between...
  • Page 44 Service Diagnosis Remove fan motor after Fan motor is switch off the power and damaged. And restart the unit, the LED replace it with a new 1 becomes light or flash. one. Test the fan motor terminal resistance between pin 1(310V) and pin 4(0V), or pin 5(15V) and pin 4(0V) of CN21 are close to 0mΩ...
  • Page 45 Service Diagnosis All-in-one board Indoor display E7 outdoor display LED2 flash 15 times Method of Communication is detected by checking the indoor PCB and the outdoor PCB. Malfunction Detection The outdoor PCB broken leads to communication fault. Malfunction  The indoor PCB broken leads to communication fault. Decision ...
  • Page 46 Service Diagnosis Check the indoor PCB: Only indoor charged measure the voltage between 3 and 4 of IC6 on the indoor mainboard with a universal meter. And measure the voltage between CN23(S) and CN52 (L) with a universal meter. If the voltage is a constant value of 0V DC to 5V DC .Or the voltage between communication line (red) The indoor PCB is damaged;...
  • Page 47 Service Diagnosis Remove fan motor after switch off the power and Fan motor is damaged. Replace restart the unit, the LED 2 it with a new one. becomes light or flash. Test the fan motor terminal resistance between pin 1 (310V) and pin 4 (0V), or pin5 (15V) and pin4 (0V) of CN21 are close to 0mΩ...
  • Page 48 Service Diagnosis 10.4.11 Loss of synchronism detection (Compressor position detection circuit fault) Outdoor Display F11 LED1 flash 18 times F28 LED1 flash 19 times Method of The position of the compressor rotor can’t 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 49 Service Diagnosis 10.4.12 High work-intense protection Outdoor display E 9 LED1 flash 21 times High work-intense control is activated in the heating mode if the temperature Method of being sensed by the heat exchanger thermistor exceeds the limit. Malfunction Detection Malfunction Activated when the temperature being sensed by the heat exchanger rises above 65℃...

  • Page 50: Circuit Diagrams

    Circuit diagrams 11. Circuit Diagrams 2_14_FG_ON 2_15_FLZ P11/PPG11 1_16_DBG P12/DBG 2_17_BUZZ P13/PPG00 2_18_LSTEP_A P14/PPG01 2_19_LSTEP_B P15/PPG20 X0/PF0 IC2-20 1_49_RST RST/PF2 2_21_LSTEP_C 3_48_ZERO P16/PPG21 INT7/AN7/P07 2_22_LSTEP_D 22 2_47_FG_FB INT6/AN6/P06 1_23_SWITCH IC2-46 1_24_RG2 2_45_IR P71/TO01 INT5/AN5/P05 1_25_SCL 1_44_ROOM P72/SCL INT4/AN4/P04 1_26_SDA 1_43_PIPE P73/SDA INT3/AN3/P03 2_42_SRCK...

  • Page 51: Removal Procedure

    Removal Procedure 12.Removal of front panel front panel Remove the foam cushion Loosen the screw Domestic Air Conditioner...
  • Page 52 Removal Procedure Lift up the control box cover Loosen the screw Lift up the control box cover Domestic Air Conditioner...
  • Page 53 Removal Procedure Removal of front panel Pull the wires 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 Domestic Air Conditioner...
  • Page 54 Removal Procedure Remove the casing three Domestic Air Conditioner...
  • Page 55 Removal Procedure horizontal flap and the stepper motor flap Loosen the screws and remove the stepper motor Domestic Air Conditioner...
  • Page 56 Removal Procedure horizontal louver and control box Every blade go round and round,then move Loosen the screws Domestic Air Conditioner...
  • Page 57 Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it Domestic Air Conditioner...
  • Page 58 Removal Procedure motor cover motor cover Domestic Air Conditioner...
  • Page 59 Removal Procedure Domestic Air Conditioner...
  • Page 60 Sincere Forever Domestic air conditioner...

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