Haier HRF-521DS6 Service Manual
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Haier HRF-521DS6 Service Manual

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SERVICE MANUAL
1609S025V0
Order No.Ref
Refrigerator
MODEL:
HRF-521DS6
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
dose not contain warnings and cautions to advice non-technical individuals of potential dangers in attempting to service a product.
Product powered by electricity should by 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.
©2013(HAIER ELECTRICAL APPLIANCES COR. LTD)
All right reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
Version: V1 Date: 20160907

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Summary of Contents for Haier HRF-521DS6

  • Page 1 Product powered by electricity should by 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. ©2013(HAIER ELECTRICAL APPLIANCES COR. LTD) All right reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2 SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Contents Chapter 1 General Information ..........................3  1-1. General Guidelines ............................3  1-2. Insurance test ..............................3  1-3. How to read this Service Manual ........................4  Chapter 2 Product Feature ............................5 ...

  • Page 3: General Guidelines

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 1 General Information 1-1. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: How To Read This Service Manual

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Photo used in this manual The illustration and photos used in this Manual may not base on the final design of products, which may differ from your products in some way.

  • Page 5: Chapter 2 Product Feature

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 2 Product Feature 2-1. Specifications Model HRF-521DS6 Product identification Description of appliance Side By Side Type of appliance(FS = free standing, BI = built-in) Supplier own brand Haier Basic features Climate class SN.N.ST.T...

  • Page 6: External Views

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 2. Super bright LED& energy-saving, brighter& better reliability. 3. Fault code automatically hiding function. 2-3. External views...

  • Page 7: Issue 2016

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter3 Disassembly and Installation Note: Unplug the power cord from the outlet when demount the refrigerator. 3-1. Display panel Disassembly You can aspirate the display panel by using vacuum suction nozzle.

  • Page 8: Removing Shelf To Clean

    Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 5 cover the main control box, then fixed well with screw. (Note: when you pull off the cable plug on the main control panel, you should press on the plug buckle) 3-3 .Removing Shelf to Clean Lift the front of shelf according to the direction of ①, then pull out the shelf according to the direction of ②，...

  • Page 9: Issue 2016

    Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 2. Seize the freezer air duct cover plate with your hands (in the red zone), then take out the top air duct cover. 3. Take out the freezer bottom air duct cover on the interface of top and bottom air duct cover (in the red zone).

  • Page 10: Chapter 4 Control And Display System

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 4 Control and display system 4-1.Control panel Refrigerating temperature display area Freezing temperature display area Holiday icon Intelligent icon Quick-cooling icon Quick-freezing icon Lock icon Refrigerating temperature adjustment button Freezing temperature adjustment button...

  • Page 11: Quick-Cooling Function Setting

    Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 In Holiday state, the freezing chamber works normally and the temperature in the refrigerating chamber is set as 17℃ automatically. Such function helps avoid possible odors in the refrigerating chamber and save energy.

  • Page 12: Door Alarm

    Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 In quick-freezing, intelligent or locked state, it’s not allowed to adjust the setting temperature in the refrigerating chamber. If you make the said adjustment in such state, the quick-cooling function, intelligent or lock icon will blink, and a warning tone will be given to indicate that the Caution setting temperature in the refrigerating chamber cannot be adjusted.

  • Page 13: Chapter 5 Control Principal And Related Test Functions

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 5 Control principal and related test functions 5-1.Refrigerator`s temperature control introduction Switch point of fridge setting temperature is based on fridge sensor SNR temperature; When the fridge SNR temperature is greater than the starting point, fridge`s large wind door will open;...

  • Page 14: Sensor`s Position And Control Principle

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 5-3. Sensor`s position and control principle Name Mark Position Freezer sensor F SNR Center of freezer air duct assembly Refrigerator sensor R SNR Center of refrigerator air duct assembly Freezer defrosting sensor...

  • Page 15: Operating Description Of Combination Key

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 are the same and general. 5-4. Operating description of combination key No. function state Enter operation Exit operation Time Remarks Press “Refrigerator” For a Not memory Exhibition The same with within Lock long time &...
  • Page 16 Mechanical key SW2 is “shorten time” key. Click and buzzer ring once, shorten 1 minutes; Press once for 3s and buzzer ring once, shorten 30 minutes. HRF-521DS6 Demo function (not tested) In Lock Mode (padlock icon illuminated) To start Demo mode. Press and hold “Refrigerator” For a long time & continue to click “Smart” for five times with 3 seconds To exit.

  • Page 17: Chapter 6 System Flow Principle

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 6 System flow principle 6-1.System flow scenograph 6-2.System flow chart...

  • Page 18: Chapter 7 Circuit Diagram

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 7 Circuit diagram 7-1. Main control PCB diagram...

  • Page 19: Brief Principle Diagram

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 7-2. Brief principle diagram...

  • Page 20: Chapter 8 Trouble Shooting And Fault Detecting

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Chapter 8 Trouble shooting and fault detecting 8-1. Frequent problem fault Maintenance Detection method phenomenon measures Use tools 1、Detect whether main control panel, display panel and frequency conversion panel is matching ;...
  • Page 21 SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 abnormal 3、Detecting frozen sensor terminal of main control temperature panel contact well; 1 、 check and repair circuit； 1、Detecting top hinge of freezer door connecting 2、replace terminal, main control panel and display panel...

  • Page 22: Fault Diagnosis And Display Method

    SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 defrosting process, this is a normal phenomenon ensure each seat while defrosting. to stress for avoiding resonance. 8-2. Fault diagnosis and display method Under lock mode, please press “Refrigerator” for a long time and continue to click “Freezer” for five times at the same time, so that can enter/exit fault code display mode.

  • Page 23: Demo Mode

    Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Fault code is not displayed directly; after repair personnel operate the compound key, the fault code can display. Notes： in the eight section character display mode, A、 B、 C、 D、 E、 F、 R、 T、 H display respectively according to the following type: 8-3.Self-testing function...
  • Page 24 SERVICE MANUAL Issue 2016-09-07 Ref 1609S025V0 REF. Model: HRF-521DS6 Sincere forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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