Haier HB21FNN User manual

SERVICE MANUAL
Refrigerator
CAUTION
READ THIS MANUAL CAREFULLY TO
DIAGNOSE TROUBLE CORRECTLY
BEFORE OFFERING SERVICE .
MODEL: HB21FN N
Features:
1. Ice making
2.Slide-out shelf for easy food access
3.Pre-cooling for defrosting for freshness storage.
4.Intelligent operation for automatic operation.
5.Automatic problem detecting and warning system, door cooling warning system.
6. Vitamin C technology for fresh food storage

CONTENTS
CONTENTS…………………………………………………………………………………PAGE
SAFETY PRECAUTIONS……………………………………………………………………3-5
SPECIFICATIONS…………………………………………………………………………….6-7
PARTS IDENTIFICATIONS…………………………………………………………………….8
DISASSEMBLY AND INSTALLION………………………………………………………....9-14
CONTROL AND DISPLAY SYSTEM……………………………………………………..15-20
Control and display panel …………………………………………………………………15
Function adjustment and control principle……………………………………………16-20
Error code display…………………………………………………………………………….21
REFRIGERATION PRINCIPLE………………………………………………………….......22
CIRCUIT DIAGRAM………………………………………………………………………..23-24
Brief principle diagram……………………………………………………………………..23
Connect diagram …………………………………………………………………………..24
TROUBLE SHOOTING…………………………………………………………………….25-39
- 2 -

SAFETY RECAUTIONS
˽ǃ
Power supply: AC 220V/50HZ
If the voltage fluctuates violently (beyond 187~242V), it is necessary to use a voltage
stabilizer of 750W or above to prevent startup failure, damaged control board or
compressor, or unusual noise.
˾ ǃ
The appliance must be plugged into a dedicated outlet that is securely
grounded.
The power cord of this appliance is fitted with the three-prong plug (grounded) that
complies with the standard three-prong outlet (grounded). Never cut off or remove
the third prong. The refrigerator should be located so that the plug is accessible.
WARNING! The plug should be securely connected to the socket or otherwise fire
hazard may arise.
˿ǃ
Be careful not to damage the power cord.
1. Always pull at the plug other than the cord itself to disconnect the appliance from
the outlet.
Route the power cord in a way to eliminate the risk of damage caused by the
weight of refrigerator or treading.
2. Be careful not to damage the power cord when moving the appliance away from
the wall.
ǃ
When the power cord is damaged
The use of cracked cord or worn plug is strictly prohibited. If the power cord is
damaged, it should be replaced in an authorized service center.
ǃ
When there is a gas leakage
1. Shut off the gas valve.
2. Open the doors and windows for ventilation.
3. Do not plug or unplug the refrigerator or other electric appliances.
ǃ
Always remember to unplug the appliance in the following cases:
1. Unplug the appliance before cleaning and reparation.
- 3 -

2. Unplug the appliance before replacing the old light bulb to prevent electric shock.
ǃ
Never store inflammable or explosive items and strong corrosive acids or
alkalis in the appliance.
ǃ
This appliance is a household refrigerator, which is produced in accordance
with the specification of national standard. It is intended for food storage only
not for storage of blood, medicine and biological products.
ǃ
To prevent risk of fire, keep the appliance away from gasoline or any other
inflammables.
j
ǃ
To prevent risk of electromagnetic interference or other accidents, do not
place any patch panel, voltage stabilizer and microwave oven on top of the
refrigerator or use any electric appliance (unless recommended by the
manufacturer) inside the refrigerator.
k
ǃ
Children are not allowed to play with the door or the bottle racks. Serious
injury may occur.
l
ǃ
The internal surface of freezer compartment is very cold when the
appliance is running. Do not touch the surface especially when hands are wet.
m
ǃ
The gap between the doors and the gap between the doors and the
cabinet are very small. Make sure figures do not get stuck. Always keep
children away when a door is opened or closed.
n
ǃ
Do not splash water onto the refrigerator. Keep off places of high humidity
that may have adverse effect on the electric insulation performance.
o
ǃ
No dismantlement or modification can be made without authorization.
Damage to refrigeration system is strictly prohibited. Reparation must be
carried out by authorized personnel.
p
ǃ
Bottled beer or beverage should not be stored in the freezer
- 4 -

compartment - risk of explosion.
q
ǃ
Unplug the appliance in the event of power interruption or cleaning.
The appliance can be plugged again only after an interval of at least 5 minutes
to prevent damage to the compressor caused by frequent startups.
r
ǃ
Please remove the door, door seal and shelves before disposal of the
old appliance and put them away in a safe place to prevent children from
being entrapped.

- 5 -

SPECIFICATIONS

REFRIGERATOR


 
1. Model

HB21FNN
Photo

Commercial brand

Haier
Product description REFRIGERATOR-FREEZER
Type of Appliance (FS= freestanding BI= built-in) FS
Energy efficiency class /
Climate class (N= + 18-32 °C T=+ 18-43 °C) SN/N
Freezer compartment / Star rating 

2. Key features
 
Gross capacity l 586
Total net capacity l 557
Defrosting (H=manual A=automatic) Fridge/Freez A
Defrost water outlet Yes
Air circulating ventilator Yes
Kind of coolant (R134a/R600a) R134a
Foaming components C-P
3. Technical data
 
Voltage / frequency V/Hz 220-240 V~/ 50
Input power / mains fuse minimum W /A 180
Length of cable / incl. plug cm 350
Temperature range (from>to) Fridge/Freez °C -22~7
4. Aesthetics
 
Colours (see L): 
Top cover 
Cabinet 
Door 
Door Frame 
Fascia panel / Handle 
Inside door/-drawers (w=white t=transpar.) - / -
Door:  
F= Flat / R= Rounded / S= Streamline S
Hinged (r =right l =left) / reversible) -/-
- 6 -
black
black
black
black
black

Lock -/-
Shelves:  
Number

4
Type (gr=grill/g=glass/p=plastic)

g
Colour of shelves

Adjustable

YES
Drawers:  
Number n°.
Crisper: 2
Salad crisper(s) transparent / white transparent
5. Equipment & Accessories
 
Control Panel:
 
Control panel interior / exterior Exterior
Thermometer interior / exterior Exterior
Control lamps green / yellow / red  
Over temperature ALARM LED / acoustic acoustic
Adjustable thermostat Yes
Fast freeze switch Yes
Interior light W 25
Adjustable feet front / rear n° front
Castors front / rear rear
6. Product dimensions
 
Unit dimensions H / W / D cm 77*91*177
Depth with open door cm
Net weight kg 135
7. Packing dimensions & loadability
 
Packing dimensions H / W / D cm 76*98*186
Gross weight kg 148
8. Recycling symbols
 
Carton weight in g kg 13
9. Service
 
Users instruction (languages) English
10. Others
 
- 7 -

PARTS IDENTIFICATIONS
- 8 -
Refrigerador light
Dairy bin
Vertical beam
Cover of crisper
Gallon bin
Refrigerator compartment
Vitamin C Drawer
Icemaker
Ice bin
Ice spoon
Freezer
Partition wall of
freezer drawer
Freezer drawer
Dairy bin
Shelf
Wine shelf
Movable board
Gallon bin
Crisper
Delicatessen drawer

DISASSEMBLY AND INSTALLION
- 9 -
Remove the door and place it in
a proper position.
Removing and replacing the right door of refrigerator compartment
Unscrew the upper right hinge cover
by means of screwdriver and then
remove the hinge cover.
Unscrew the upper right hinge by
means of hexagonal screwdriver and
then remove the hinge.
Remove the middle hinge if necessary.
Replace the door in a reverse sequence of removal.
Removing and replacing the left door of refrigerator compartment
Unscrew the upper left hinge cover
by means of screwdriver and then
remove the hinge cover.
Unscrew the upper left hinge by means
of hexagonal screwdriver and then
remove the hinge.

- 10 -
Remove the door and place it in a
proper position. Remove the middle hinge if necessary.
Replace the door in a reverse sequence of removal.
Removing & Replacing Ice Bin
Pull out the ice bin entirely and remove
it from the refrigerator.
Release the buckles on both sides
and pull out the bin in the direction
shown on the slideway and remove
it from the refrigerator.
Replace the ice bin in a reversal sequence to removal.
Removing & Replacing Freezer Drawer
Pull out the freezer drawer entirely
and remove it from the refrigerator.
Release the buckles on both sides and
pull out the drawer door in the direction
shown on the slideway and remove it
from the refrigerator.
Replace the freezer drawer in a reversal sequence to removal.