Haier HRF-628AF6 User manual

Order No.Ref1304S001V0
©2013(HAIER ELECTRICAL APPLIANCES COR. LTD)
Allrightreserved. Unauthorized copying and distribution is a violation of law.
Refrigerator
SERVICE MANUAL
MODEL:HRF-628AF6/IF6
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.
Haier Group
WARNING
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SERVICE MANUAL
Model: HRF-628AF6/IF6
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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
2-1. Specifications...........................................................................................................................................5
2-2. Main Functions ........................................................................................................................................6
2-3. External views..........................................................................................................................................6
Chapter3 Disassembly and Installation......................................................................................................8
3-1. Ice-crushed motor disassembly...............................................................................................................8
3-2 .Display Panel Disassembly .....................................................................................................................9
3-3.REF damper ...........................................................................................................................................10
3.6 Evaporator cover disassembly................................................................................................................ 11
Chapter 4 Control and display system.....................................................................................................13
Chapter 5 Control principal and related test functions...........................................................................18
5-1. Air damper .............................................................................................................................................18
5-2. Control principle of fan motor ................................................................................................................18
5-3. Defrost control .......................................................................................................................................18
5-4. Ice-making control .................................................................................................................................18
5-5. Self-testing function ...............................................................................................................................20
5-7. Water inlet quantity setting ....................................................................................................................21
Chapter 6 System flow principle ...............................................................................................................22
6-1.System flow scenograph.........................................................................................................................22
6-2.System flow chart ...................................................................................................................................23
Chapter 7 Circuit diagram..........................................................................................................................24
7-1. Main control PCB diagram.....................................................................................................................24
7-2. Brief principle diagram ...........................................................................................................................25
7-3. Sensors and error codes .......................................................................................................................26
Chapter 8 Water Line Principle..................................................................................................................28
Chapter 9 Trouble shooting.......................................................................................................................29
9.1. Frequently problem ................................................................................................................................29
9-2. Typical problem......................................................................................................................................31
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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 220V with a frequency of 50Hz.
10. A big fluctuation of voltage (exceed the range 187~242V) 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.
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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.
1-3. How to read this Service Manual
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.
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Chapter 2 Product Feature
2-1. Specifications
Model HRF-628AF6 HRF-628IF6
1. Product identification
Description of appliance Side By Side Side By Side
Type of appliance(FS = free standing, BI = built-in) FS FS
Supplier own brand Haier Haier
2. Basic features
Climate class
(SN=10~32°C, N=16~32°C, ST=18~38°C, T=18~43°C) SN.N.ST SN.N.ST
Gross capacity l 610 610
Total net capacity l 550 550
Net capacity refrigerator compartment l 375 375
Net capacity freezer compartment (total) l 175 175
Freezing capacity kg/24 h 10 10
Energy consumption kWh/year 420 420
Energy consumption (EN153) kWh/24 h 1.15 1.15
Max storage time by power failure(Freezer)h 5 5
Refrigerant R600a/80g R600a/80g
3. Control panel
External control display LED LED
Temperature range (from>to) °C (Fridge)9~1°C/
(freezer)-24~-14°C
(Fridge)9~1°C/(fre
ezer)-24~-14°C
Super Cooling (Fridge) YES YES
Super Freezing (Freezer) YES YES
Stand-by function (Holidays) YES YES
4. Basics datas
Voltage / frequency 220/50 220/50
Input power / mains fuse (intensity) W /A 180/1.8 180/1.8
Lenght of cable/incl. plug cm 349 349
5. Packing dimensions
Unit dimensions without handle ( H / W / D) mm 1790*908*690 1790*908*690
Net weight kg 120 120
Packing dimensions (H / W / D) mm 1902*980*760 1902*980*760
Gross weight kg 137 137
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2-2. Main Functions
1. Single cooling system with air-cooled computer control, there is a freezer evaporator in freezing room,
fridge room temperature is controlled by ON/OFF of electronic air damper.
2. Super bright LED& energy-saving, brighter& better reliability .
3. With automatically ice-making function: Can making ice automatically, and get ice, ice cubes or cold
water through dispenser selection operation.
4. Fault code automaticly hiding function.
2-3. External views
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、
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Chapter3 Disassembly and Installation
Note:Unplug the power cord from the outlet when demount the refrigerator;
3-1. Ice-crushed motor disassembly
1. Remove the ice store box like picture;
2. Loosen two screws from the ice maker supporter;
3.Disconnect the ice maker supporter cable and put it out;
4. Disconnect the ice-crushed motor box cable ;
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3-2 .Display Panel Disassembly
1. Loosening 2 screws fixed the bottom of control panel assembly;
2. Remove the diaplay panel with sucker,and disconnect the cable;
3. Loosening 2 screws fixed the display PCB.
5. Loosen four screws fixed the ice-crushed motor box and put it out;
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3-3.REF damper
1. Tear open the card claw, demount the cover plank
2. Remove screws and demount cover.
3. Disconnect the cable;
4. Demount the foam and disconnect the cable;
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5. Remove the foam and you could change the damper.
3.6 Evaporator cover disassembly
1. Remove the screw cover;
.
2. Remove one screw, remove the cover with the sucker;
3. Disconnect the cable and remove the support;
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4. Dismantle the below cover.
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Chapter 4 Control and display system
A – Dispenser selector button B – Ice maker on/off button
C – Freezer temperature button D – Fridge temperature button
E – Function selector button F – Function confirm button
G – dispenser status icon H – Filter change status icon
I – Ice maker onstatus icon J – Quick chill icon
K–Quickfreezingicon L–Holidaymodeicon
M – Lock icon
Lock Mode
This feature will lock the temperature and function settings. When locked, the lock icon will blink and a beep
will sound.
To lock
Press and hold the ‘OK’ button for 3 seconds (Fig.2-15). The LOCK icon will switch on and the refrigerator
will lock.
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To unlock
Press and hold the ‘OK’ button for 3 seconds. The LOCK icon will switch off and the refrigerator will
unlock.
Holiday Mode
WARNING !
Before selecting Holiday Mode remove all food and drink from the fridge compartment as is maybe unsafe
to eat or drink after a short period of time.
This feature allows you to leave the fridge section unused while the freezer section operate as normal.
When in this mode, the fridge will be automatically set to 17 °C.
To turn on
1. Press the ‘FUNC.SET’ button until Holiday mode is selected (Fig.2-16).
2. Now press the ‘OK’ button: the HOLIDAY mode icon will turn on.
To turn off
1. Press the ‘FUNC.SET’ button until Holiday mode is selected.
2. Now press the ‘OK’ button: the HOLIDAY mode icon will turn off.
Quick Cool Mode
This function is to chill food quickly so that the food remains fresh for as long as possible. Use this feature
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before putting large quantities of food in to the fridge chamber at any one time.
The Quick Cool mode will turn off once it has reached the set temperature.
To turn on
1. Press the ‘FUNC.SET’ button until Quick Cool mode is selected (Fig.2-17).
2. Now press the ‘OK’ button: the S-COOL icon will turn on.
To turn off
1. Press the ‘FUNC.SET’ button until Quick Cool mode is selected.
2. Now press the ‘OK’ button: the S-COOL icon will turn off. Quick Cool mode is now turned off.
Quick Freeze Mode
This function is designed to freeze food completely in the shortest possible time to maintain the nutrients
within the food. The Quick Freeze mode will turn off once it has reached the set temperature.
Use this feature before putting large quantities of food in to the freezer chamber at any one time. We
recommend that you turn on the Quick Freeze mode 12 hours in advance, as this will lower the temperature
in the freezer compartment before you place any food in it.
To turn on
1. Press the ‘FUNC.SET’ button until Quick Freeze mode is selected (Fig.2-18).
2. Now press the ‘OK’ button: the S-Frz. icon will turn on.
To turn off
1. Press the ‘FUNC.SET’ button until Quick Freeze mode is selected.
2. Now press the ‘OK’ button: the S-Frz. icon will turn off. Quick Freeze mode is now turned off.
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Adjusting the Fresh Food Temperature
Press the ‘Ref. Temp’ button (Fig.2-19). The fridge temperature display will start blinking, which means the
fridge is in the temperature setting mode.
Press the ‘Ref. Temp’ button to scroll, in turn, through the fridge temperature range from 09 °C through to
01 °C.
Without any further operation in 5 seconds, the blinking will stop and the temperature will be set. The
temperature will also stay still at the time you press any other button during the blinking.
Adjusting the Freezer Temperature
Press the ‘Frz. Temp’ button (Fig.2-20). The freezer temperature display will start blinking, which means the
freezer section is in the temperature setting mode.
Press the ‘Frz. Temp’ button to scroll, in turn, through the freezer temperature range from –14 °C through to
–24 °C.
Without any further operation in 5 seconds, the blinking will stop and the temperature will be set. The
temperature will also stay still at the time you press any other button during the blinking.
Ice Maker On/Off Setting
When the fridge-freezer is first powered on, the ice maker defaults to off.
To turn on
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• Press the ‘ICE MAKER ON/OFF’ button for 3 seconds. The Ice Maker On icon will turn on and the ice
maker will start working.
To turn off
• Press the ‘ICE MAKER ON/OFF’ button for 3 seconds. The Ice Maker On icon will turn off and the ice
maker will stop working.
IMPORTANT: Make sure that you empty the ice maker container before you turn off the ice maker, as the
ice will melt into water.
Changing The Water Filter:When the Filter Change Status Icon turn on,it is indicating that the water filter
requires changing(approximately every 6 months).After finishing the change,press FunctionSelector button
for 3 seconds,Filter Change Status Icon will disappear.
Demo mode:Under lock mode,press “function” and “FRZ set” buttons at the same time for 3 sec.The
alarming beep will aloud,then enter “demo mode”.the display board will display -18 04.
Under demo mode ,compressor ,motor fan and all the heater will not work except the lamp.
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Chapter 5 Control principal and related test functions
5-1. Air damper
1) Refrigerator sensor R1 controls the startup and shutdown of air damper in refrigerator compartment.
2)The air damper is closed (in order to prevent the compartment from freezing) within 15 minutes from the
beginning to the finishing of defrosting.
3) Force the air damper to be opened and closed once if it can not be opened within 1 hour. After that, decide
whether open or close it according to R1 sensor.
4) The air damper heater work in-phase with damper open.
5-2. Control principle of fan motor
Control of F-fan:
When open any door, the F-fan will be off, after 10 minutes the F-fan will rework if any door still open;and if all
door is close,the F-fan will work in normal mode;
If setting the s.FRZ or s.cooling mode, F-fan speed is 1500RPM,In other mode, the speed from 1300 to
1500rpm for different condition like environment temp, setting temp and so on.
Control of C-fan:
C-fan is working in-phase with the compressor and at a mutative speed from 1100 to1400RPM for different
environment temp.
5-3. Defrost control
First power on and defrost error mode, the defrost circle is comp working time reach to 4 hours,
At the normal mode: The defrost circle time is alterable; it decided by open door, close door, open door
times, temperatures.
When open the door more times, the defrost circle is 7-12 hours;
When open the door less times, the defrost circle is 12-20 hours;
The longest cycle is 73 hours.
5-4. Ice-making control
1.Control principle:When the water enter into the ice box, machine test the ice-maker sensor after
100 minutes. If the temperature of ice-maker sensor is below -14 , ice℃-maker starts rotate, and the
ice-measure staff starts work to test if the ice in ice-store box is full. If the ice-store box is no full of ice, ice
box turn over continually to release ice, then come back to original horizontal position. The water valve
open again let water enter into ice-maker, and then continue a new ice-making process.
1)Water in: The machine let water into ice-maker after ice releasing action, the water inlet time is set through
control panel.
2)Ice-making delay time: Include two conditions; one condition is that the ice-making time reach to 100
minutes, another condition is that the ice-maker senor temperature is lower than-14 .℃
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3)Ice-detection: When ice-maker is under working status, ice-measure staff move downward firstly to detect
if the ice is full. If the measure-staff can move to the lowest position, it means that the ice in ice-box is not full,
and it can continue next ice-releasing action. If the measure-staff can not move to the lowest position, machine
will take for the ice in ice-box id full, and return to ice-making delay time to wait another ice-detection action,
and then come into being cycle.
4)Ice-releasing: If the result of ice-detection is not full, ice-box will rotate to release ice. After ice-releasing,
machine going on another water in action, and then come into being cycle.
2.Ice maker testing:Under locked state,press “Dispenser”+“Ice on/off” for 3 sec.,when the beep
sound,open FRZ door,within 20 sec.ice maker turns out automatically
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5-5. Self-testing function
1.Force start:Under locked mode, press Set-->Ref.Temp-->OK-->Frz.Temp”(A→D→B→C→A) one by
one within 5 sec. then press “Set”,and the REF and RFZ display icon will display T1,T1)
2.Forced defrost :
Keep the current state ,and press “Set” ,T2 will be present, then enter forced
defrost mode.
3.Quit:Keep the current state, press “Set” ,then will be present T3→T4→back to normal display
control,and escape from test mode.
MODE WORKING CONDITION
Force start
1)R and F display areas:T1、T1;
2)Compressor start work;
3)Freezer FAN work with high votage;
Cooling FAN work with high votage;
4)defrost heater off;
5)REF air damper open;
Forced
defrost
1)R and F display areas:T2、T2;
2)Enter defrost mode:
compressor OFF
Freezer /Cooloing FAN OFF
Defrost heater work,
if the D-SNR ≥7℃,D HTR work 10 sec and then quit test 2 mode;
if the D-SNR<7℃,D HTR will keep working until the D-SNR ≥7℃, and then quit test 2 mode;
3)REF air damper keep close
Quit Keep the current state, press “Set” ,then will be present T3→T4→back
to normal display control,and escape from test mode.
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