Haier HB21FC45N Service Manual

SER VICE MANUAL

Refrigerator

Order No.Ref1007S019V0

MODEL:

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.

◎2010 (HAIER ELECTRICAL APPLIANCES COR. LTD)

WARNING

HB21FC45N*

Haier Group

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

Contents

Table of Contents ·········································································································· 1

1. General Information ·································································································· 4

1-1. General guideline ······························································································· 4

1-2. Insurance test ····································································································· 4

1-3. How to read this Service Manual ········································································ 5

2. Product Feature ········································································································ 6

2-1. Specifications ····································································································· 6

2-2. Main Functions and Features ············································································· 7

2-3. External views ···································································································· 8

2-4.How to use the crisper ························································································ 9

2-5.How to use the Delicatessen drawer ··································································· 9

Disassembly

3-1. Installing the Door Handle ················································································ 10

3-2. Installing and Removing Door ·········································································· 12

Removing and installing Lower Freezer Drawer (If required) ··························· 13

3-3.

3-4. Water line installation ······················································································· 14

3-5. Kick plate installation ························································································ 15

3-6. Height-adjustable shelf ····················································································· 15

3-7.

Removing Crisper Cover ·················································································· 16

3-8.Removal of ice-maker and evaporator cover ····················································· 17

4. Control and display system ···············································································

4-1. The top refrigerator control center ···································································· 19

4-2. Fresh food temperature adjustment ································································· 19

············································································································ 10

4-3. Freezer temperature adjustment ······································································ 19

4-4.Freezer express-freeze setting ·········································································· 20

4-5.Fresh food express-chill setting ·········································································· 20

4-6.Quick-ice function ······························································································· 20

4-7.Stopping icemaker function ················································································ 21

4-8.Sabbath function ································································································ 22

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

4-9.Celsius/Fahrenheit conversion function ······························································· 21

4-10.The water filter indicator setting ········································································· 22

4-11.Energy saver ····································································································· 22

4-12.Demo mode ······································································································· 22

Control principle ······································································································ 23

5-1. Air Damper ········································································································ 23

5-2. Control principle of fan motor ············································································ 23

5-3. Defrost control ·································································································· 23

5-4. Control principle of Ice-maker ··········································································· 24

5-5.Ice- making process ··························································································· 25

5-6.TEST mode functions ························································································· 26

6. System flow principle ······························································································· 27

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6-1. System flow scenograph ··················································································· 27

7. Circuit diagram·········································································································· 28

7-1. Main control PCB diagram ················································································ 28

7-2. Brief principle diagram ······················································································ 31

7-3.Sensor and error code ······················································································· 32

8. Water line map ··········································································································· 34

8-1.The water line sketch map ················································································· 34

8-2.Water line scenograph ······················································································· 35

9. Trouble shooting ······································································································· 36

9-1.Trouble shooting and repair ··············································································· 36

9-2.No making ice ···································································································· 38

9-3.Ice glomeration ··································································································· 38

9-4.The error code ···································································································· 39

9-5.Instruction of check variable speed compressor ················································ 43

9-6.Poor cooling, big noise ······················································································· 44

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

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. After servicing, make the

following leakage current checks to prevent the customer from being exposed to shock hazards.

1) Leakage Current Cold Check

2) Leakage Current Hot Check

3) Prevention of Electro Static Discharge (ESD) to Electrostatic Sensitive

1-2. Insurance test

1. Check if there is any leak of current.

2. Cut out the power supply before the repair to avoid an electrical shock hazard.

3. In the case of a live-line test, insulating gloves should be worn to avoid potential electrical shock.

4. Confirm the rated current, voltage and capacity before testing with any kinds of instruments.

5. Watch if the upper door is open when you check something at a lower position.

6. Take out every part in the cabinet before moving the machine, especially things like panels (e.g. glass

shelf).

7. Please wear intact cotton gloves when repair any parts of the evaporator, so that scratches by the

sharp fins can be avoided.

8. If there is a breakdown with the refrigeration system, please surrender the machine to the service

center, else the leaked refrigerant may pollute the atmosphere.

9. The refrigerator use AC of 115V with a frequency of 60Hz.

10. A big fluctuation of voltage (exceed the range 115～127V) may cause a start failure of the refrigerator,

a burn-out of the control panel and compressor, or an abnormal sound from the compressor in

operation. In this condition an automatic voltage regulator over 60W should be added.

11. Take care not to damage the supply line. Don’t yank at the line; pull the plug out gently from the

receptacle. Don’t press the line under the cabinet or step on it. Take care not to roll on or damage the

supply line when moves the machine from the wall.

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.

14. Pull out the plug of power supply during clearance or power outage. Wait at least five minutes to

resume the power supply in order to prevent damage to the compressor caused by continuous restart.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

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.

Rev. Ref1007S019V0

1-3. How to read this Service Manual

1-3-1. Using Icons

The meaning of each icon is described in the table below:

Note:

A “note” provides information that is not indispensable.

Caution:

A “caution” is used when there is danger, through incorrect manipulation, may damage equipment, loose

data, get an unexpected result or has to restart (part of) a procedure.

Warning:

A “warning” is used when there is danger of personal injury.

Reference:

A “reference” guides to find additional information on a specific topic.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

Chapter 2 Product Feature

2-1. SPECIFICATIONS

1 Model

Product description (Refrigerator/Freezer) Refrigerator Refrigerator Refrigerator

Colour Grey smooth

Type of cooling system(NF=no frost/ S=static) NF NF NF

Climate class* T & ST T & ST T & ST

2. Key features

Total net capacity Cu.ft 20.6 20.6 20.6

Net capacity refrigerator compartment Cu.ft 14 14 14

Net capacity freezer compartment Cu.ft 6.6 6.6 6.6

Defrosting (M=manual A=automatic) A A A

Frost free system yes yes yes

Defrost water outlet yes yes yes

Air circulating ventilator yes yes yes

Kind of coolant R134a R134a R134a

3. Technical data

Voltage / frequency V/Hz 115V/ 60 115V/ 60 115V/ 60

Temperature range (from>to) °F -6>4 -6>4 -6>4

Refrigerator °F 36-42 36-42 36-42

Chiller / Meat Crisper °F ~>32F / - ~>32F / - ~>32F / -

Vegetable Crisper °F 34-40 34-40 34-40

Freezer °F -6-4 -6-4 -6-4

Cooling system: K=Compressor / A=Absorption K K

4. Equipment & accessories Control panel:

Interior / exterior Interior Interior Interior

Display type LED** LED** LED**

Control lamps green / yellow /white / / /

Over temperature alarm LED / acoustic Yes Yes Ye s

Ice maker Manual/ Automatic A A A

Adjustable feet front / rear n° 2 /FRONT 2 /FRONT 2 /FRONT

Castors front / rear -/yes -/yes -/yes

Length of cable/incl. plug cm 352 352 352

5. Product dimensions

Unit dimensions ( H / W / D) mm 1772/908/700 1772/908/700 1772/908/700

Net weight kg 141 141 141

6. Packing dimensions & load ability

Packing dimensions (H / W / D) mm 1872/760/968 1872/760/968 1872/760/968

HB21FC45NS HB21FC45NP HB21FC45NE

cabinet/Stainless

steel door

White Smooth Black Smooth

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Gross weight kg 148.5 148.5 148.5

7 Service

User manual English/F/S English/F/S English/F/S

Rev. Ref1007S019V0

2-2 Main Functions and Features、

◆ Removable automatic icemaker

◆ Foldaway wine holder.

◆ Large crisper with humidity adjustment.

◆ Holiday function.

◆ Fridge storage compartment can be set on/off separately.

◆ Intelligent alarm function: automatic alarm at over temperature, malfunction, door open.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

2-3. External views

Fridge storage compartment

Rev. Ref1007S019V0

Freezer Drawer Structure

Ice cream drawer

Ice maker box

Drawer divider

Bottom drawer

Bottom door drawer

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

2-4. How to User the Crisper

The appliance is equipped with a crisper for vegetable and fruit storage. You can set the humidity to

meet your storage needs.

Turn the humidity regulator (located at the upper right Humidity regulator corner of the crisper) up

to get a higher humidity suitable for storage of cucumber, grape, kiwifruit and persimmon etc.

2. Turn the humidity regulator (located at the upper right corner of the crisper) down to get a lower

humidity suitable for storage of strawberry, orange, bean, garlic, watermelon, plum and tomato etc.

2-5. How to Use the Delicatessen Drawer

The appliance is equipped with a delicatessen drawer with a temperature range

from-2°C~+3°C.The temperature can be adjusted by the air control knob to meet your storage needs.

1. Turn the air control knob left (weak) to reduce the cooled air moving in the delicatessen drawer

and maintain a higher temperature;

2. Turn the air control knob right (strong) to increase the cooled air moving in the delicatessen

drawer and maintain a lower temperature.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

Chapter3 Disassembly

3-1. Door handle installation

3-1-1.Refrigeration door handle

1. Retrieve the handle clearly marked for the Refrigerator Door that needs attachment.

2. Insert the Handle Connecting Screws into the holes provided on the Refrigeration Door. Using a hand

held screwdriver tighten the Handle Connecting Screw until the screw threads disappear and the first

flat surface of the Handle Connecting Screw touches the Refrigerator Door surface (as shown in

illustration1- step2). Do not over tighten-damage to the door can occur.

3. Place the Refrigeration Door Handle onto the Handle Connecting Screws using the upper hole of the

“Top” Refrigeration Door Handle (as shown in illustration 1-step3); The Refrigeration Door Handle

should rest comfortably to the door on these Connecting Screws.

4. Insert the Connecting Bolt into the hole at the top of the Refrigerator Door Handle. Using the provided

Hex Driver and tighten until the handle is fixed firmly to the door. Repeat this process for the “Bottom”

of the Refrigeration Door Handle (as shown in illustration 2-step4).Be careful when tightening not to

scratch the door surface.

5. Place Bolt Covers into the holes on the handle at the top and bottom and push into place (as shown in

illustration2- step5).

6. To disassemble the Refrigeration Door Handle, follow these directions in reverse.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

3-1-2.Freezer door handle

1. Retrieve the handle clearly marked for the Freezer Door that needs attachment.

2. Insert the Handle Connecting Screws into the holes provided on the Freezer Door. Using a hand

held screwdriver tighten the Handle Connecting Screw until the screw threads disappear and the

first flat surface of the Handle Connecting Screw touches the Freezer Drawer surface (as shown in

illustration1- step2). Do not over tighten-damage to the door can occur.

3. Place the Freezer Drawer Handle onto the Handle Connecting Screws (as shown in illustration1

–step3).The Freezer Drawer Handle should rest comfortably on these Connecting Screws.

4. Insert the Connecting Bolt into the holes on the bottom of the Freezer Drawer Handle marked

“Left”. Using the provided Hex Driver and tighten until the handle is fixed firmly to the door. Repeat

this process for the “Right” side of the Freezer Drawer Handle (as shown in illustration 2-step4).Be

careful when tightening not to scratch the door surface.

5. To disassemble the Refrigeration Door Handle, follow these directions in reverse.

Rev. Ref1007S019V0

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

Rev. Ref1007S019V0

3-2 Installing and Removing Door

Precautions During Dismantling and Installation of The Door

You may not need to remove the doors! But if you have trouble getting the unit into its final

lacation,please follow the below door removal and installation instructions. It is suggected, for your

safety, to have two or more people to assist you in completing the below task to avoid bodily injury,

product damage,or properly loss.

3-2-1. Right French Door Removal and Installation

1. Remove the screws on the top hinge cover

2. Using a screwdriver,remove the top hinge screws.Remove the hinge, then take the refrigerator

door off and place it aside for the time being.

3. Remove the middle hinge,if needed.

4. Install the refrigerant door in reverse sequence,

When lifting up the refrigerator hinge and separating it from the door body,please be careful not to

drop the door slanted forward.

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

3-2-2. Left French door removal and installation

1. First remove the top hinge cover as above.

2. Disconnect the water line from back of unit

3. Remove the hinge screws using a screwdriver, and take off the hinge, then remove the door body

and place it in a safe position. Disconnect the wire cable connector, ground wire and pull water

line out from cabinet.

4. Please remove the middle hinge, if needed.

5. Install the door in the reverse order.

When lifting the hinge as it separates from the door, be careful it does not lean forward and fall,

causing you bodily harm or damaging the door.

Rev. Ref1007S019V0

3-3.Removing and installing Lower Freezer Drawer (If required)

1. First open the drawer as far as possible, and then remove the screw on each side of the drawer.

2. Then pull the drawer body up and towards you, and put it aside in a safe place.

3. Install the drawer in the reverse order.

Keep children and pets from playing inside the lower drawer as a hiding place. Use caution after

drawers and removed, due to the possibility of the plastic track protruding from unit

SERVICE MANUAL

Issue 2010-07-05

Model: HB21FC45N*

3-4 Water line installation

Installation of connecting valves and plumbing must follow all local

plumbing guidelines, laws and restrictions.

Install the shutoff valve on a cold water supply line that is frequently

used

1. Turn off the main water supplying pipe routine

Turn on the nearest tap till the water pipe is cleaned completely

2. Choose the position of the valve

Choose a position for the valve that is easy to be approached.

It is recommended that the valve is connected to the side of

a vertical water pipe, and if it is really needed to connect the

valve to a level water pipe .Connect it to the upside of the

water pipe not the downside, in case the sediment may flow

out from the water pipe.

Rev. Ref1007S019V0

3. The hole of the drill valve

Drill a hole of 1/4inches on the water pipe using a sharp

drill (even using an automatic valve). Clean the burr left on the

water pipe by the drill.

Use care not to allow water to flow into the drill

4. Tighten the shutoff valve

5. Tighten the pipe tip

Tighten the bolts of the pipe tip till the closing begins to expand.

Don’t let the bolts lf the pipe tip be too tight, otherwise the water

pipe is pressed flat.

6. The deposing line of the pipe

The deposing line between the cold water pipe and the refrigerator

Drill a hole on the wall or on the floor that is near the wall to a great

degree, and let the pipe line go through the hole

Assure the pipe has an enough margin area (about 8 inches [2.4 meters]

and make it be three circles with the diameter of each circle about

10 inches [25centimeters].and after this installment is done, the

refrigerator can be moved away from the wall.

7. Connect the pipe to the valve

Put the Tightened nuts and the copper shaft on the end side of

the pipe and connect the pipe to the stopping valve. Make

sure that the pipe is cut into valve completely. Tighten and press

the nut.

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