Haier N Series Service Manual
Haier N Series Service Manual

Haier N Series Service Manual

Wall mounted type
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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
All manuals and user guides at all-guides.com
SERVICE MANUAL
Model No.
HSU-18HNM03/R2(UKR)
WARNING
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group
Wall Mounted Type
ON/OFF N-Series
AS18ND3HAA
2017 (Qingdao Haier Air Conditioner General corp. , Ltd)
Version V1
Date 2017-04-24

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Summary of Contents for Haier N Series

  • Page 1 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2017 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Table for 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.
  • Page 3: Introduction

    All manuals and user guides at all-guides.com                                     ...
  • Page 4 All manuals and user guides at all-guides.com                                                     ...
  • Page 5 All manuals and user guides at all-guides.com                                           ...
  • Page 6 All manuals and user guides at all-guides.com                                              ...
  • Page 7 All manuals and user guides at all-guides.com                                          ...
  • Page 8 All manuals and user guides at all-guides.com                                   ...
  • Page 9: Features

    All manuals and user guides at all-guides.com                                       ...
  • Page 10: Specifications

    All manuals and user guides at all-guides.com                                  ...
  • Page 11: Sensors List

    All manuals and user guides at all-guides.com Sensors list TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 900 0 Speed(super/high/low) 1180/1000/800 1100/ 950/ 750 Type ML fin- 7HI-HX tube Heat exchanger t i f t,Left,Horizontal,Downward Air filter Removable/Washable/Mildew Proof Microcomputer Control Temperature control l l o Note: the data are based on the conditions shown in the table below...
  • Page 12: Piping Diagrams

    All manuals and user guides at all-guides.com        ...
  • Page 13: Printed Circuit Board Connector Wiring Diagram

    All manuals and user guides at all-guides.com                                        ...
  • Page 14 All manuals and user guides at all-guides.com Connector Wiring diagrams Wiring Diagrams Indoor DC FAN MOTOR C0N3 ION GENERATIOR C0N1 FUSE1 T3.15A/250VAC CN17 CN31 left stepmoter CN23 up-down stepmoter CN501 EMERGENCY SWITCH PIPING TEMP SENSOR AMBIENT TEMP SENSOR RECEIVER DISPLAY 1(L) 2(N) Domestic air conditioner...
  • Page 15: Functions And Control

    All manuals and user guides at all-guides.com                                                ...
  • Page 16 All manuals and user guides at all-guides.com                                       ...
  • Page 17 All manuals and user guides at all-guides.com                                  ...
  • Page 18 All manuals and user guides at all-guides.com                                      ...
  • Page 19 All manuals and user guides at all-guides.com                                               ...
  • Page 20 All manuals and user guides at all-guides.com                                      ...
  • Page 21 All manuals and user guides at all-guides.com                                  ...
  • Page 22 All manuals and user guides at all-guides.com                                  ...
  • Page 23 All manuals and user guides at all-guides.com                                  ...
  • Page 24 All manuals and user guides at all-guides.com                                    ...
  • Page 25 All manuals and user guides at all-guides.com                                  ...
  • Page 26 All manuals and user guides at all-guides.com                                  ...
  • Page 27 All manuals and user guides at all-guides.com                                  ...
  • Page 28: Dimensional Drawings

    All manuals and user guides at all-guides.com Dimensional drawings 8.Dimensional drawings unit:mm 9.Center of gravity unit:mm Domestic air conditioner...
  • Page 29: Service Diagnosis

    All manuals and user guides at all-guides.com 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.
  • Page 30 All manuals and user guides at all-guides.com Service diagnosis 10.4Codes and Description 10.4.1.Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated voltage is None of the units Check the power supply. supplied. operates Check the indoor PCB Check to make sure that the indoor PCB is broken...
  • Page 31 All manuals and user guides at all-guides.com Service diagnosis Check the connector connection. Correct the connection Is it normal? Thermistor resistance check Replace the thermistor Is it normal? Replace the indoor unit PCB Thermistor resistance check method: Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester. The relationship between normal temperature and resistance is shown in the value of indoor thermistor.
  • Page 32 All manuals and user guides at all-guides.com Service diagnosis 10.4.2.3 Indoor DC fan motor malfunction Indoor Display Method of Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Method of Malfunction Malfunction abnormal fan motor operation Malfunction...
  • Page 33: Circuit Diagrams

    All manuals and user guides at all-guides.com Circuit Diagram 11.Circuit Diagram Domestic air conditioner...
  • Page 34 All manuals and user guides at all-guides.com Circuit Diagram Domestic air conditioner...
  • Page 35 All manuals and user guides at all-guides.com                                                                                            ...
  • Page 36 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2017 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
  • Page 37 All manuals and user guides at all-guides.com                                   ...
  • Page 38 All manuals and user guides at all-guides.com                                      ...
  • Page 39 All manuals and user guides at all-guides.com                                  ...
  • Page 40 All manuals and user guides at all-guides.com                                  ...
  • Page 41 All manuals and user guides at all-guides.com                                     ...
  • Page 42 All manuals and user guides at all-guides.com                                  ...
  • Page 43 All manuals and user guides at all-guides.com                                  ...
  • Page 44 All manuals and user guides at all-guides.com                                   ...
  • Page 45 All manuals and user guides at all-guides.com                                      ...
  • Page 46 All manuals and user guides at all-guides.com                                     ...
  • Page 47 All manuals and user guides at all-guides.com                                 ...

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