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Haier BD-429GAA Service Manual

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SERVICE MANUAL
Order No. Ref0903S021V0

Chest Freezer

MODEL:BD-429GAA
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.
◎
200
9(HAIER ELECTRICAL APPLIANCES COR. LTD)
All right reserved. Unauthorized copying and distribution is a violation of law。
Haier Group

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Summary of Contents for Haier BD-429GAA

  • Page 1: Chest Freezer

    ◎ 9(HAIER ELECTRICAL APPLIANCES COR. LTD) All right reserved. Unauthorized copying and distribution is a violation of law。...

  • Page 2: Table Of Contents

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Contents Table of Contents ·········································································································· 2 1. General Information ································································································ 3 1-1. General guideline ······························································································ 3 1-2. Insurance Test ··································································································· 3 1-3. How to read this Service Manual ······································································· 4 2. Product Feature ······································································································ 5 2-1.

  • Page 3: General Information

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 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 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 12. In the case of leakage of inflammable gases like carbon monoxide, open the door and windows. Don’t pull out or insert the plugs of the appliance. 13. Don’t touch the refrigeration surface of the freezing compartment when the refrigerator is in operation, especially when your hand is wet, else you may be glued to the surface.

  • Page 5: Product Feature

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 2-1. SPECIFICATIONS Superfast freeze function. Adjustable temperature control with power indicator. High pressure and microbiological foam filled door for energy conservation. Convenient water drain. Hi-temp indicator. External controls. Type Model BD-429GAA Commercial brand...

  • Page 6: External Views

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Fascia panel / Handle (w/b/g/s) white/white Equipment & accessories Product classification (Super eco/Eco/Standard) Standard (Number/Handle/Lock) 1/●/● Type of lid (Hinge/Counter balanced/Sliding) Hinge Inside walls (Stainless steel/Aluminum/Synthetic mat.) Anodized Aluminum Insulation Lid thickness...

  • Page 7: Installation, Adjustments And Maintenance

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Chapter 3 Installation, adjustments and maintenance 3-1. Installation The freezer should be conveniently located for day-to-day use in a dry well-ventilated room. Do not install the freezer where the temperature will go below 0°F or above 110°F, because it will not maintain proper temperatures.

  • Page 8: Cleaning Your Freezer

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 freezer. Water may drip from the back flange of the lid cover during defrosting. This is normal. Ice builds up in the lid insulation when the lid is open for adding or removing food, and melts during the defrosting operation.

  • Page 9: Disassembly

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Chapter 4 Disassembly 4-1. Door assembly (Door, hinge, hinge cover) Disassemble the hinge assembly and the hinge cover: the hinge cover, take away the cover, then screw off the eight screws on the bottom hinge, so the whole hinge could be moved.

  • Page 10: Control Panel Assembly (Panel, Cover Board, Knob, Indicator Light)

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 4-3. Control panel assembly (Panel, cover board, knob, indicator light) Unscrew the compartment grill (refer 4-2), push the panel claw gently you're your finger or tools, at the same time pull panel outside then take away it.

  • Page 11: Control And Display System

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Chapter 5 Control and display system 5-1. Control panel Freezing temperature selection is made by setting the control from min to max (coldest). If you want colder or warmer temperatures, adjust the control one step at a time.

  • Page 12: System Flow Principle

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Chapter 6 System flow principle 6-1. Refrigeration flow chart The refrigeration system of direct cooling single-system cooler belongs to the category of a single-temperature and single-control refrigerating system with one evaporators and is...

  • Page 13: Refrigeration Flow Scenograph

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 6-2. Refrigeration flow scenograph Chapter 7 Circuit diagram 7-1. Brief principle diagram...

  • Page 14: Trouble Shooting

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Chapter 8 Trouble shooting 8-1. Normal phenomena Problem Possible Causes What To Do Freezer does not Temperature control in OFF or Move the control to a temperature setting. operate or Min or 0 position.
  • Page 15 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Door/lid left open. Check to see if package is holding door/lid open. Too frequent or too long door/lid openings. Freezer Temperature control set too See About the operation of your freezer temperature too cold.

  • Page 16: Abnormal Phenomena

    SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 8-2. Abnormal phenomena 8-2-1 Reasons of electricity leakage of cabinet Leakage of compressor: mainly because of serious vibration, the motor coil of compressor contacts with the shell, the coat of enameled wire will come off somewhere and connect with shell.
  • Page 17 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 8-2-3 Troubleshooting by sounds When the cabinet is working normally, high-pressure liquid refrigerant flowing into the low-pressure evaporator via capillary tube, gas flowing sound and water flowing sound can be heard. Open the cabinet door and access to the evaporator, you can hear the sound. If there is no sound or there is sound a little now and then, there must be leakage of system refrigerant or insufficient charge.
  • Page 18 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 If the cabinet is not level, or if the floor is loose, please adjust the base support or fasten the cabinet to the floor. If noise is caused by loose of screw between the base cover and cabinet body, please make it tight.
  • Page 19 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 circuit problem inside the motor or the windings are burned. 8-2-9 Problem analysis and service Problems Reasons Removing methods Check if there is short circuit Fuse is broken. and solve it, if not, change The contact of plug, socket, and cable is capable fuse.
  • Page 20 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 The knob of temperature controller has Change the position to Compressor been set to “over cooling” position. moderate. runs without The contacting point of temperature Repair or change. stop, controller is adhered.
  • Page 21 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Compressor inside noise is too big or vibration absorption suspending spring is broken. Make the ground connection Electricity Cabinet body has not been connected to as stipulated. leakage the ground. Change compressor.
  • Page 22 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 8-2-10 Cabinet cannot be started When switching on power, the cabinet cannot be started. Determine first that the failure is caused by inside or outside factors. The factors may be: Outside factors ) The fuse is burned, or the contact of plug and socket is not well, or the voltage is too low.
  • Page 23 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 compressor tremble; thermal protection unit will open after a short time. Operating amperage too high Cabinet operation current is too big and will not operate normally. There are two reasons way: First, the cabinet stops automatically after a few seconds after starting, several minutes later it starts again and stops automatically again.
  • Page 24 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 8-2-12 Poor cooling...
  • Page 25 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 8-2-13. Compressor doesn’t start Com pressor doesn’ t start W hether lighting and display system is Trouble of lighting and display system normal W hether the grade of therm ostat is Adjust the grade according to fact...
  • Page 26 SERVICE MANUAL Issue 2009-03-09 Rev. Model: BD-429GAA Ref0903S021V0 Sincere forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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