Haier HRF520BW User manual

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.
Order No.Ref-520-20190410-SM1
Refrigerator
MODEL:
HRF520BW
HRF520BS
HRF520BHS/HRF520BHC
HRF520FS
HRF520FHS/HRF520FHC
©2019(HAIER ELECTRICALAPPLIANCES COR. LTD)
All right reserved. Unauthorized copying and distribution is a violation of law.
WARNING
Haier Group Version: V1 Date: 20190410

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SERVICE MANUAL
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. External views..........................................................................................................................................6
2-3. Major features..........................................................................................................................................7
2-4. Explanation of The Models......................................................................................................................7
Chapter 3 Disassembly and Installation.....................................................................................................8
3-1 Disassembly of relative components such as refrigerator/ freezer air duct, freezer fan and lamps.........8
3-2 Door Reversibility....................................................................................................................................14
Chapter 4 The Preparation Before Use ..................................................................................................19
4-1 Space requirement..................................................................................................................................19
4-2 Ventilation cross-section ......................................................................................................................19
Chapter 5 System flow principle ...............................................................................................................20
5-1 Refrigerating cycle plan..........................................................................................................................20
5-2 Sensor layout plan ...............................................................................................................................22
Chapter 6 Circuit diagram..........................................................................................................................23
6-1. Brief principle diagram...........................................................................................................................23
6-2. Main control Chart .................................................................................................................................24
6.3 Operating principle, parameters and testing method of sensors (forced start, forced defrosting, ice
maker testing) ...............................................................................................................................................24
Chapter 7 Control and display system .....................................................................................................28
7-1 Control and display panel.......................................................................................................................29
7-2 Function adjustment ...............................................................................................................................30
Chapter 8 Quick check and Self-test model.............................................................................................33
Chapter 9 Trouble shooting.......................................................................................................................38
9-1. Symptom: No freezing...........................................................................................................................38
9-2. Symptom: no shutdown.........................................................................................................................39
9-3. Symptom: Poor freezing........................................................................................................................40
9-4. Symptom: No starting when powering on..............................................................................................41
9-5. Symptom: no defrosting.........................................................................................................................42

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SERVICE MANUAL
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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SERVICE MANUAL
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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SERVICE MANUAL
Chapter 2 Product Feature
2-1. Specifications
Picture
Model
HRF520BW
HRF520BS
HRF520BHS
HRF520BHC
HRF520FS
HRF520FHS
HRF520FHC
Basic features
Energy efficiency class
****
****
Climate class
SN/N/ST/T
SN/N/ST/T
Freezer compartment star rating
*/***
*/***
Gross capacity
l
517L
514L
Total net capacity
l
433L
430L
Net capacity refrigerator compartment
l
320L
317L
Net capacity freezer compartment (total)
l
89L
89L
Chill compartment
l
24L
24L
Energy consumption / year
kWh/
year
358
358
Energy consumption (EN153) per 24 h
kWh/
24 h
0.98
0.98
Max noise level
dB(A
)
39
39
Max storage time by power failure Freezer
h
/
/
Kind of coolant and weight (R134a/R600a)
R600a（68g）
R600a（68g）
Approvals (VDE / TÜV / IMQ / NF / ÖVE / DEMKO
etc.)
GS
GS
Key features
Key features
Cooling system: (K = Compressor / A =
Absorbtion)
K
K
Number of compressor(s)
n°
1
1
Defrosting Fridge / Freezer (M=manual
A=automatic)
A/A
A/A
Control system (E = Electronic / M =
Mechanical)
E
E
NO FROST (Fridge/Freezer)
Y
Y
Ventilated (Fridge only)
Y
Y
Antibacteria system
Y
Y

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SERVICE MANUAL
Basics datas
Basics datas
Unit dimensions with-out handle ( H / W / D)
mm
1725/790/686
1725/790/686
Depth with open door
mm
1432
1432
Net weight
kg
95
95
Voltage / frequency
220-240 V~/ 50Hz
220-240 V~/ 50Hz
Input power / mains fuse (intensity)
W /A
220/1.5
220/1.5
2-2. External views

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SERVICE MANUAL
2-3. Major features
1、Fully closed freezing system and drawer storage can avoid food tainting, keep cold and are
energy-saving. As warm air can't easily enter into the storage area when opening the door.
2、Cool wind but no frost: adopting fully air cooled refrigeration system, deep cooling and
quick freezing.
3、Holiday function: when you are out for holiday, refrigerator will run at the low energy
consumption to make sure there's no odor in the refrigerating chamber and guarantee soft
freezing and the normal storage of frozen food.
4、LED display: adopting dynamic LED to display the operational situation of refrigerator.
5、LED light guide plate illumination: adopting the technique of light guide plate illumination,
the light is soft, even, bright and no illumination dead angle.
6、Adjusting shelf height：The shelf can be relocated to accommodate food size or height.
2-4. Explanation of The Models

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SERVICE MANUAL
HRF 520 B/F W/HS/HC
Chapter 3 Disassembly and Installation
3-1 Disassembly of refrigerator/freezer air duct, freezer fan, lamps and
other relative components
3-1-1 Disassembly of refrigerator air duct
Refrigerating and freezing volume of
the refrigerator
Refrigerator type
Haier
W: White
H: Non-plumbed Water Dispenser
S: Stainless Steel
C: Black Stainless Steel
B: BM F: French

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SERVICE MANUAL
①
②
①As shown in the figure, unscrew
three bolts from the refrigerator air duct
with a cross screwdriver;
②Follow the arrow direction in the
figure and remove the refrigerator air
duct from top to bottom;
③Pull out the terminal that is
connected to variable temperature
sensor from the right side of
refrigerator air duct. Then, the
refrigerator air ducts in the left and
right can be removed.
The small terminal is a cold storage
sensor, and the big terminal is a
variable temperature sensor.

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SERVICE MANUAL
③
3-1-2 Disassembly of top lamp
①
②
①Follow the arrow direction in the
figure and gently unscrew the
lampshade of the top lamp with a
screwdriver;
②The whole lamp is fixed by snap
joint, and its location is shown in the
figure. Pull out the terminal of the left
lamp and remove the lamp.

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SERVICE MANUAL
3-1-4 Disassembly of freezer air duct
①
②
①Unscrew five bolts from the freezer air duct
with a cross screwdriver;
②As shown in the figure, pull out the two
terminals those are connected to the freezer air
duct; roll out the freezer air duct from below.
The small terminal is a freezing sensor, and the
big terminal is a fan control cable.
3-1-5 Disassembly of freezer fan
①Unscrew the bolts with a cross
screwdriver. Gently unclench the upper
and lower cover plates of the freezer
air duct;

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SERVICE MANUAL
①
②
②Take the fan cable out. Unscrew
three bolts with a cross screwdriver.
Disassemble the freezer fan.
3-1-6 Disassembly of refrigerator air door
①
②
①Follow the methods in Figure 3-1-1
to disassemble the refrigerator air
duct. And pull out the terminal of
refrigerator air door as shown in the
figure;
②Follow the arrow direction in the
figure and slightly pull out the
refrigerator air door from top to bottom.

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SERVICE MANUAL
3-1-7 Disassembly of compartment components
Diagram of components in compressor compartment
Parts list:
No.
Parts designation
Qty.
No.
Parts designation
Qty
1
Assembly of
compressor
support plate
1
4
Compressor
1
2
Evaporating pan
1
5
Cushion
4
3
Heating tube of
evaporating pan
1
6
Compressor clip
4
3-1-8 Disassembly methods of defrosting heater strip
①
①Take out the two connector terminals
in the red circle connected to the
defrosting cable;

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SERVICE MANUAL
②
③
Gently spread two cards fixing the
defrosting heater strip, as shown in the
red circle in Fig. ②. Pull the defrosting
heater strip through the right fixing
card;
②Pull out the defrosting heater strip
through the left fixing card.
③The left terminal is defrosting,
heating wire and fuse wire, and the
right terminal is defrosting sensor.
3-2 Door Reversibility
Before connecting the appliance to the power supply you should check, whether the door swing must
change from right (as delivered) to left, if this is required by the installation location and the usability.
Before connecting the appliance to the power supply you should check, whether the door swing must
change from right (as delivered) to left, if this is required by the installation location and the usability.

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SERVICE MANUAL
1. Provide necessary tool.
2. Unplug the appliance.
3. Remove the fixation of the cover
4. Remove the faceplate of the body
5. Remove the top plate of the upper door
6. Remove the hinge cover.
7. Unplug the connection cable.
8. Unscrew the upper hinge.
9. Lift the loose upper door carefully off the lower
hinge.
10. Turn the upper door upside down and change the
position of the hinge barrel on the lower side of the
door.
11. Change the door stop from the current position
to opposite side.
12. Unscrew the lower hinge of the upper door.

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SERVICE MANUAL
13. Change the positions of the blanking plugs and the
screw on the side.
a.Remove lower door.
b. Change the positions of the blanking plug at the top of
the lower door.
c.Change the door stop at the bottom of the lower door
from the current position to opposite side.
d.Unscrew the lower hinge.
e.Take out the new lower hinges from the accessory bag
and screw the new lower hinge to the other side of the
door opening.
f.Lift the lower door carefully on to the lower hinge so
that the pivot fits into the hinge barrel.
14.Take out the new hinges from the accessory bag and
screw the new lower hinge of upper door to the other
side of the door opening.
15.Lift the door carefully on to the lower hinge so that
the pivot fits into the hinge barrel.
16.Fix the upper hinge with the screws.
17.Put the connection cable through the hinge
cover(delivered in the accessory bag)and put it over the
hinge.
18.Plug in the connection cable and fit it into the
opening.
19. Replace faceplate and cover, fix it with the screws and
reinsert the fixation (see fig .3).
After the change of the door check that the door seals are
located properly on the housing and all screws are
tightened well.

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SERVICE MANUAL
3-3 Water dispenser （Only models with water dispenser）
3-3-1 How to use Water dispenser
Water dispenser
(Only models with water dispenser)
With the water dispenser cool drinking water can be tapped.
The water think should be cleaned before first use (see CARE ANDCLEANING).
Filling the water tank
1.Ensure that the water tank is properly inserted (see EQUIPMENT)
2. Rotate and lift the round lid (A) and fill the water tank
up with fresh drinking water.
3.Fill water only up to the mark (1.8L): as it could overflow
When the door opens and closes.
4.Close the round lid until it clicks into place.
Before refilling dispose residual water and clean the water tank.
When you don’t need water for a long time, please empty the water tank and insert the
cleaned tank.
The cover(C) on the water tank is additionally used to save energy. If you do not want to get
water from the water dispenser for a long period, please still install the cover because of
better insulating and saving energy.
Getting water from the dispenser
1. Place a glass underneath the water outlet.
2. Push it gently against the water dispenser lever with
your glass,
Make sure the glass is in line with dispenser to prevent the
water from splashing out.
Removable water tank
(Only models with water dispenser)
The water tank can be removed and reinstalled for cleaning
in the same way as the door racks.
Insert water tank
(Only models with water dispenser)
Place the water tank in the position that water out-let (B)
fits into the opening of the door. Make sure that the water
tank is locked.

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SERVICE MANUAL
3-3-2 How to clean the Water dispenser
Cleaning the water tank
(Only models with water dispenser)
1. Take off the water tank out of the appliance.
2. Remove the cover(A).
3. Unscrew the dispenser cock(B).
4. Clean the tank and dispenser cock with warm water and
liquid dishwashing detergent, Make sure all soap is rinsed
off.
5. Mount the dispenser cock, close the cover and replace
the tank inside the appliance.

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SERVICE MANUAL
Chapter 4 The Preparation Before Use
4-1 Space requirement
Required space when door is opened:
Appliance width:1185cm;
Appliance depth:1423cm.
4-2 Ventilation cross-section

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SERVICE MANUAL
Chapter 5 System flow principle
5-1 Refrigerating cycle plan