Table of Contents

Advertisement

Quick Links

借(通)用件登记
旧底图总号
底图总号
A
版本
更改单编号
出图审查 设计
标准化
批准
产 品
名称: 冷藏冷冻箱
产 品
BCD-740WPCZR/HC1(H)
型号包括原手册中已有型号和维修手册整合计划中的型号
型号:
每次更改需要增加型号
文 件
名称:
文 件
编号:
编 制
日期:
日期
签字
审核
重 要 度
售后服务技术资料
BSSJ0000
2020 年 11 月 11 日
重 量
比例
共 张
第 张
冰箱开发
中心
售后服务
技术资料
BSSJ0000

Advertisement

Table of Contents
loading

Summary of Contents for Hisense BCD-740WPCZR/HC1(H)

  • Page 1 重 要 度 产 品 名称: 冷藏冷冻箱 产 品 BCD-740WPCZR/HC1(H) 型号包括原手册中已有型号和维修手册整合计划中的型号 型号: 每次更改需要增加型号 文 件 售后服务技术资料 名称: 文 件 BSSJ0000 编号: 编 制 2020 年 11 月 11 日 日期: 借(通)用件登记 冰箱开发 旧底图总号 中心 底图总号 售后服务 版本 更改单编号 日期 重 量 比例...
  • Page 2 Refrigerator Service Manual Model:BCD-740WPCZR/HC1(H)
  • Page 3: Table Of Contents

    Contents 1. Warning and precautions for safety ................. 4 2. Appearance and structure ....................5 2.1 View of the appliance ..................... 5 2.2 Wind channel structure ................... 6 2.3 Evaporator structure ....................6 2.4 Compressor room structure..................7 3. Basic parameters ......................8 4.
  • Page 4 6.5.1 Basic parameters ..................42 6.5.2 Checking method ..................42 6.5.3 Removing the fridge damper ..............42 6.6 Light ........................43 6.6.1 Basic parameters ..................43 6.6.2 Checking method ..................43 6.6.3 LED light removal ..................43 6.7 Door switch ......................44 6.7.1 Basic parameters ..................
  • Page 5: Warning And Precautions For Safety

    1. Warning and precautions for safety Please observe the following safety precautions in order to use safely and correctly the refrigerator and to prevent accident and danger during repair. 1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more than three minutes before replacing PCB parts.
  • Page 6: Appearance And Structure

    2. Appearance and structure 2.1 View of the appliance Note! Due to unceasing modification of our products, your refrigerator may be slightly different from this instruction manual, but its functions and using methods remain the same. To get the best energy efficiency of this product, please place all shelves, drawers and baskets on their original position as the illustration above.
  • Page 7: Wind Channel Structure

    2.2 Wind channel structure 2.3 Evaporator structure...
  • Page 8: Compressor Room Structure

    1-Fuse 2-Accumulator 3-Sensor 4-Heater 5-Evaporator 2.4 Compressor room structure 1-Dry filter 2-Motorized valve 3-Power cord 4-Compressor 5-Fan Motor 6-Bottom condenser 7-Evaporation dish 8-Motorized valve 9-Connector(180° ) 10-Connector(90° ) 11-Water tube (blue, flow to the icemaker in fridge room) 12-Water tube (white, flow to the dispenser on fridge door) 13-Water tube (grey, connect with the water filter)
  • Page 9: Basic Parameters

    3. Basic parameters SPECIFICATIONS DESIGN PRESSURE HIGH SIDE / LOW SIDE 250 psig / 88 psig REFRIGERANT / AMOUNT R600a (62g) VOLUME (Refrigerator / Freezer) 25.4 (17.6 / 7.8) cu.ft RATED VOLTAGE AC115V RATED FREQUENCY 60Hz RATED CURRENT 3.0A DEFROST POWER 220W FOAMING AGENT Cyclopentane...
  • Page 10: Operation And Functions

    4. Operation and functions 4.1 Display controls Your product has one control panel which is installed on the top cover, it may be different depending on the model. Use your appliance according to the following control guidelines. When the appliance is powered on for the dispenser function.
  • Page 11 temperature. When you press the button setting displays at 36° F. continuously, the temperature will be set Super cool automatically switches off after in the following sequence. 3 hours, and the refrigerator temperature setting will revert back to the previous setting.
  • Page 12: Using Your Appliance

    Ice to be from the retailer where you purchased dispensed. You can touch the " Water" your refrigerator or the Hisense after-sales button to activate the water mode. service system. When you touch the Ice Type button, the...
  • Page 13 Tools you will need (Not provided): You can adjust them manually by hand or by using a suitable tool.  To allow the doors to self-close, tilt the top backwards by 10~15mm. Allen Wrench (4mm) Wrench (8mm) Caution! Let your refrigerator stand upright for Philips Screwdriver approximately 4 hours before connecting it 2.1 Disassembling the fridge door...
  • Page 14 2. Take out the upper freezer drawer (A) by lifting it up from the rail system. 4. Remove the 4 hex head bolts hinges (E) 3. Remove the lower freezer drawer (C) by with an Allen wrench (4 mm).Remove the lifting it up.
  • Page 15 compensate for the low pressure. 3.1 Connecting the water supply You will need the following tools and parts (not included): You need to purchase several items to complete this connection. You may find these items sold as a kit at your local Re-assembling the freezer door hardware store.
  • Page 16 4.Turn the main water supply back on, then turn on the shutoff valve and flush out the tubing until the water runs clear. Note: The initial dark discoloration of water is normal. 5. Turn off the shutoff valve. 3.2 Connecting the water supply line to 3.
  • Page 17 water supply, the water pressure to the slip the compression nut on the copper reverse osmosis system needs to be a tubing (not supplied). minimum of 40 to 60 psi (276 to 414 kPa). 2. Tighten the compression nut onto the If the water pressure to the reverse compression fitting.
  • Page 18 then push it slightly in the direction of the arrow. To unfold the shelf, hold the removable glass(I) and pull it out slightly in the direction of the arrow until it can’t move. Warning! Do not place too many heavy things in the Door shelf.
  • Page 19 4.3 Using the dispenser to get cold Water clouding phenomenon water and Ice All water provided to the refrigerator flows through the filter which is an alkaline water filter. In the filtering process, the pressure of the water that has flowed out of the filter is increased, and the water becomes saturated with oxygen and nitrogen.
  • Page 20 pull it out. the water supply line after installing the When you pull the water filter, a little water filter water can leak from the opening. This is 1.After the water filter is replaced, normal. To minimize the water leaks, keep dispense 2.5 gallons of water (flush for the filter cartridge horizontal when pulling approximately 5minutes)to remove...
  • Page 21 If you are going on a long vacation or 2. Dispense 4 to 6 ice cubes into the glass. business trip and won’t be using the water 3. After 8, and then 16 hours, dispense a dispenser or ice maker part for period of full glass of ice.
  • Page 22 pressure plummets and the oxygen and nitrogen get supersaturated, which results in gas bubbles. The water may temporarily look misty or cloudy due to these oxygen bubbles. After a few seconds, the water will look clear. Cleaning After using for a period, water accumulated in receiving tank might overflow, thus you should clean it with dry towel regularly to avoid water spilling out...
  • Page 23: Defrost Mode

    4.3 Defrost mode 4.3.1 Start condition When compressor accumulated running time reach the setting point (depends on the environment temperature), it will enter defrost mode automatically. 4.3.2 Defrost flow Start Compressor stops Defrost heaters work Evaporator temprature reach the setting point,exit defrost mode Defrost heaters stop Compressor starts several minutes delay...
  • Page 24: Error Display

    Freezer sensor malfunctions Freezer defrost sensor malfunctions Humidity sensor malfunctions Ice maker sensor malfunctions Ice room sensor malfunctions Communication sending malfunctions Communication receiving malfunctions Freezer fan malfunctions The door alarm 4.4.2 Checking method 4.4.2.1 Environment sensor or Humidity sensor error Hisense Refrigerator...
  • Page 25 4.4.2.2 Ice maker sensor error Hisense Refrigerator...
  • Page 26 7. Environment sensor corresponding pin No. 1 and No. 7 on CN8 connector of main-board. 8. Humidity sensor corresponding pin No. 3 and No. 7 on CN8 connector of main-board. 9. Ice maker sensor corresponding pin No. 2 and No. 7 on CN7 connector of main-board. Hisense Refrigerator...
  • Page 27 2~10 on CN7 & CN5 connector of main-board, as the drawing below) and repair if it is broken. 4.4.2.5. Communication error Ec or Er error: Note: The display panel corresponding pin No.14、 No.16、 No.17and No.19 on CN8 connector of the main-board as the drawing below. Hisense Refrigerator...
  • Page 28: Troubleshooting

    Large quantity of warm food has recently been stored within motor runs continuously the appliance. The temperature outside the appliance is too high. Doors are kept open too long or too often. After your installing the appliance or it has been switched off Hisense Refrigerator...
  • Page 29 Check if the filter is properly installed. If it is not properly installed, the water dispenser may not work. Is the Child Lock on? Hear water bubbling in This is normal. The bubbling comes from the refrigerant the refrigerator coolant liquid circulating through the refrigerator. Hisense Refrigerator...
  • Page 30: Faulty Start

    5.2 Faulty start Hisense Refrigerator...
  • Page 31: Refrigeration Failure

    5.3 Refrigeration failure 5.3.1 Freezer compartment Hisense Refrigerator...
  • Page 32: Refrigerator Compartment

    5.3.2 Refrigerator compartment Hisense Refrigerator...
  • Page 33: Thick Frost In Freezer Compartment

    Is the appliance too close to heat sources? Make enough distance between heat sources and appliance Is watery or hot food stored in the cabinet? Wipe out dew on the louver surface and run the refrigerator again Hisense Refrigerator...
  • Page 34: Dew In Refrigerator Compartment

    Is the appliance too close to heat sources? Make enough distance between heat sources and appliance Is watery or hot food stored in the cabinet? Advise to cool down hot food and seal watery food well before storing Hisense Refrigerator...
  • Page 35: Breaking Of Light

    5.6 Breaking of light Hisense Refrigerator...
  • Page 36: Pipe Noise

    5.7 Pipe noise 5.8 PANEL PBA operates abnormally 1) When PANEL PBA does not light up or partially does Hisense Refrigerator...
  • Page 37 Hisense Refrigerator...
  • Page 38: Circuit And Checking

    If the problem is probably caused by the mainboard, change it directly to confirm. 6.2.2 Removing the mainboard 1. Unplug the appliance 2. Remove the screws by screwdriver and remove the electric box cover, as picture 1. 3. Remove the screw, then remove the mainboard, as picture 2. Hisense Refrigerator...
  • Page 39: Compressor

    No.18 and No.20 on CN5 connector of mainboard. If the voltage equal to electric supply power and there is stabilized frequency, it means the compressor or drive board is broken, change the drive board or compressor; If not, change the mainboard. Hisense Refrigerator...
  • Page 40: Removing The Drive Board

    No. 8 connect 12V power and pin No. 9 connect GND, as the drawing below.  The condenser fan motor corresponding pin No. 10~ No.12 on CN9 connector of main-board, pin No.11 connect 12V power and pin No.12 connect GND, as the drawing below. Hisense Refrigerator...
  • Page 41: Removing The Freezer Fan Motor

    Step 3:Remove the clasp(4) of the cover(3) with your both hands. Step 4:Remove the fan motors after removed the three screws (5) holding the fan motors with a Philips screwdriver. Hisense Refrigerator...
  • Page 42: Removing The Condenser Fan Motor

    Step 3. Remove the 1 screws by screwdriver as picture 2. Step 4. Unplug the terminal as picture 3. Step 5. Pull out the fan motor as the picture 4, then remove the fan motor as picture 5. Picture1 Picture2 Picture3 Picture4 Picture5 Hisense Refrigerator...
  • Page 43: Damper (Electric Wind Gate)

    Step 4:Remove the two wire connectors(5). Step 5: Remove the fridge air duct(6) with your both hands. Step 6: Rive off the foam strip (7) ,and then remove the wind gate foam(8). Step 7: Remove the fridge electric wind gate. Hisense Refrigerator...
  • Page 44: Light

    OK, change the light; If not, it means the mainboard is not OK, change it. 6.6.3 LED light removal 6.6.3.1 Removing the refrigerator top light 1. Unplug the appliance. 2. Remove the light cover, as picture 1. 3. Remove the light, as picture 2. Hisense Refrigerator...
  • Page 45: Door Switch

    Refrigerator freezer door switch corresponding pins as the drawing below. 2.The fridge doors switch is corresponding pin No.11 and No.20 on CN8 connector of mainboard, as the drawing below. 3.Check the magnet on the fridge doors is dropped out or not. Hisense Refrigerator...
  • Page 46: Defrost Heater

    After the display illumine all the leds for 1 second and occur a long sound, it means have entered compulsory defrost mode. During compulsory defrost mode, the display board will display “dF”, use a multimeter to measure the voltage between pin No.2 and No.7 on CN3 connectors of the mainboard, if Hisense Refrigerator...
  • Page 47: Removing The Display Component

    3. Check output voltage corresponding display between No.17 and No.19 on CN8 connector of mainboard. if the voltage equal to DC 5V, it means the mainboard is OK, change display component; If not, it means the main control board is broken, change it. Hisense Refrigerator...
  • Page 48: Removing The Display Component

    Step 1: Remove the function part(1) by pulling down with your hands as the picture below. Step 2: Remove the wire connector (2) by pressing the top of them.(After you have removed the function part, you can change the led light of the function part) Hisense Refrigerator...
  • Page 49: Lever Switch

    No.17 and No.25 on CN8 connector of the main-board as the drawing below. 2. Under normal condition, the two pins of switch is open circuit; Under press condition, the two pins of switch is short circuit. If the result is abnormal, change the switch. Hisense Refrigerator...
  • Page 50: Removing The Lever Switch

    6.11.3 Removing the lever switch Step 1: Remove the lever by pulling the upper part of the lever with your hand as the picture below. Step 2: Remove the dispenser switch and pull out wire terminal. Hisense Refrigerator...
  • Page 51: Water System

    6.12 Water system 6.12.1 Schematic diagram of water system Waterway design scheme Hisense Refrigerator...
  • Page 52: Water System Out Of The Freezer Room

    8—Motorized valve 9—Water tube (white, flow into the water tank in fridge room) 10—Water pipe (blue, flow into the icemaker room) 11—Water tank inlet cover 12—Water pipe (white, flow into the water dispenser in fridge door) 13—Icemaker inlet cover Hisense Refrigerator...
  • Page 53: Water System In The Fridge Room

    3. Check output voltage corresponding Electrically operated valve of the mainboard, if it is 12V when working conditions are met, it means the mainboard is OK, change the water pump; If not, it means the mainboard is not OK, change it. Hisense Refrigerator...
  • Page 54: Water Valve

    6.12.5.3 Removing the water valve 1. Remove the screw (1) with a Philips screwdriver. 2. Remove the wire connector (2) by pressing the top of them. 3. Disconnect the water line at the check valves (3) and quick connector (4). Hisense Refrigerator...
  • Page 55: Ice Maker

    Step 13: Pry the evaporation tube (F) out the ice maker with a Philips screwdriver. Step 14: Remove the first wire connector by pressing the top of it as picture shown. Step 15: Remove the ice maker (G) by pressing the buckle as picture shown. Hisense Refrigerator...
  • Page 56: Remove The Ice Crusher Motor

    After you have removed the ice maker, you can remove the ice crusher motor in the following steps: Step 1: Remove the four screws holding the motor part (M) with a Philips screwdriver. Step 2: Remove the third wire connector by pressing the top of it. Hisense Refrigerator...
  • Page 57: Remove The Water Nozzle

    Fault phenomenon 2:Not reversing Detection method : With the hand to touch the electromagnetic valve, and power on it ,the voltage is 100-120V, then to fell if the electromagnetic valve has reversing action or hear Hisense Refrigerator...
  • Page 58 (when welding, winding some wet cloth on pipe and drench it at the same time). Hisense Refrigerator...
  • Page 59: Cooling System Repairing

    Refrigerant enters dry filter,water and imperity will be filtrated Refrigerant enters Electromagnetism valve, and Capillary, then pressure will be reduced Refrigearnt enters finned evaporator and become low temperature low pressure gas after absorbing heat from freezer and refrigerator compartment Hisense Refrigerator...
  • Page 60: Summary Of Repair

    7.2 Summary of repair Hisense Refrigerator...
  • Page 61: Regulation Of Repair

    7.3 Regulation of repair Hisense Refrigerator...
  • Page 62: Practical Work Of Repair

    7.4 Practical work of repair Hisense Refrigerator...
  • Page 63: Brazing Reference Drawing

    7.5 Brazing reference drawing making evaporator Refrigerant flowing direction Welding point Hisense Refrigerator...

Table of Contents