Haier HRB-271 User manual

CAUTION
READ THIS MANUAL CAREFULLY TO
DIAGNOSE TROUBLE CORRECTLY
BEFORE OFFERING SERVICE
SERVICE MANUAL
Refrigerator
Features :
1. Optimized condensing system.
2. Pre-cooling for defrosting for freshness storage.
3. Intelligent operation for automatic operation.
4. Automatic problem detecting and warning system,
door cooling warning system.
MODELS :
HRB - 306
HRB - 331
HRB - 271
HRB - 331MPE

CONTENTS
CONTENTS
SAFETY PRECAUTIONS.
SPECIFICATIONS.
PARTS IDENTIFICATIONS
DISASSEMBLY.
Refrigerator door ( Gasket ).
Freezer door.
Lock Supporter.
M / F duct.
Louver freezer.
CONTROL AND DISPLAY SYSTEM.
The function of key.
The control of key.
REFRIGERATION PRINCIPLE
System flow chart.
System flow serograph.
CIRCUIT DIAGRAM
Brief principle diagram.
PCB diagram.
TROUBLE SHOOTING.
No cooling.
The compressor doesn’t stop
Cooling capacity is insufficient
The compressor doesn’t stop.
Normal phenomena-Not trouble for refrigerators.
Three essentials for checkup.
Analysis of troubles and troubleshooting.
EXPLODED VIEW
SPARE PARTS LIST.
7
6
5
2
1
11
12
14
16
42
44

SAFETY PRECAUTIONS
This appliance uses 220-240V / 50Hz Ac for power Supply
failure in operation and damage to the control panel.
the moisture of the compressor will occur if voltage is
outside the range 187-242V unless a regulator
with a capacity 750W or higher is installed
It is required to use separate dedicated outlet with
securely grounding
The power cable of this appliance is fixed with three-core
(grounding) plug complying with three-core (grounding)
outet. In no case should the third plug pin ( grounding )
of the power cable be cut or removed
In case of damaged power cable
when the power cable or plug has been warned is
profiled to continue to use il in this case. It is required
t re la e t y cor athiz d e ie h po pc i b fa t y u or e srv c so.
When there is leakage of inflammable gas
Close the valve of leaking gas
Open doors and windows
Neither try to drag nor insert any power plug for
any electrical unit such as refrigerators.
Do not damage power cable
Be sure not to pull out the plug on the appliance
By drawing the power cable. Be sure to directly pull
Out it on the outlet by rigidly grasping the plug.
Do not cause the appliance body press the power
Cable, nor should any people lead on it.
When moving the appliance from wall, be careful
Not to roll or damage power cable.
Please pull out power plug under the following
situations:
Pull out power plug prior to cleaning or repairing
When replacing damaged lamp.it is required to pull
out power plug to prevent electrical shock
2

3
It is absolutely prohibited to put inside
the appliance hazardous inflammable
or explosive articles,strong corrosive
acid,alkali,etc.
Do not keep medicine,vaccine,or
chemical reagent in the appliance.This
refrigerator is for household use,which
cannot store item with strict requirement
for temperature.
Do not store or use gasoline or other
flammable article in the vicinity of the
refrigerator to avoid fire.
Do not place any electrical plugs,
Regulators or microwaves on top of the
Refrigerator. Do not use electric
appliances (Expect those allowed by
manufacturer) inside the refrigerator.
Do not place heavy or unstable articles
or water containers on top of the
Refrigerator.
Do not play by hanging on its door, to
prevent tilting the door or toppling the
refrigerator to hurt person.
SAFETY PRECAUTIONS

4
When the refrigerator has started
Running ,take care not to touch the cold
surface of the freezer compartment with
hand,especially with wet hand.
Otherwise, your skin is liable to be stuck
on the cold surface.
It is strictly prohibited to privately
dismantle or change the appliance.
For the repair of refrigerator, it can be
carried out by professional only.
At no power supply or when carrying
out cleaning, it is required to pull out the
power plug, and to wait atleast 5
minutes for switching ON it again to
prevent damaging its compressor by
continuous starting.
Do not spray water onto the refrigerator,
or place it in wet area susceptible to be
splashed with water, so as to avoid
influencing the electric insulation
performance of the appliance.
Do not put the bottled beer or beverage
in the freeze compartment to prevent
frost crack.
When the appliance is to be discarded,
dismantle its door, as well as its door
gasket to avoid accident occurred when
a child goes inside for playing.
SAFETY PRECAUTIONS