Refrigerator service manual

Refrigerator service manual
Service manual
Refrigerator service manual
Single door serial
MODEL :RD-30WC4SFY(BD-230WYHCE)
Refrigerator (freezer)
1
Single door serial
Service manual
Content
1.Safety precautions ………………….………………………………………… 3~3
2.Specification…………………………………………………………………......4~4
3.Parts identification…………...………………………………………….………5~5
4.Refrigeration system diagram………….………………………….……….……6~6
5.Circuit diagram…………………………………………………………………6~6
6.Maintenance service and Troubleshooting …………..………………………. 7~10
7.Quality information report……………………………….………………...…11~11
8.Exploded view and part list………………………………………….…......…12~15
Refrigerator (freezer)
2
Single door serial
Service manual
1.Safety precautions
Please read the following instructions before servicing your refrigerator.
1)Check the refrigerator for current leakage.
2)To prevent electronic shock, unplug before servicing.
3)Always check line voltage and amperage.
4)If you use any kind of appliance, check regular current. voltage and capacity.
5)Don’t touch metal products in the freezer with wet hands, this may cause frostbite.
6)Prevent water from following onto electric elements in the mechanical parts.
7)When tilting the refrigerator, especially the thin plates(ex. Glass shelf or books).
8)When servicing the evaporator, wear cotton gloves. This is to prevent injuries from the sharp
evaporator fins.
9)Leave the disassembly of the refrigerating cycle to a specialized service center. The gas inside
the circuit may pollute the environment.
Refrigerator (freezer)
3
Single door serial
Service manual
2.Specification
RD-30WC4SFY(BD-230WYHCE)
Single door freezer (no-frost)
Model No.
Type
Capacity
Net
Performance
Climatic type
Power
Features
General Features
Refrigerator
Compartment
Freezer
Compartment
Dimensions
Net
Packing
Weight
Loading Capacity
End of Table.
Refrigerator (freezer)
Total/ (L/Cu.Ft.)
Freezer/ (L/Cu.Ft.)
Refrigerator/ (L/Cu.Ft.)
240(8.5)
240(8.5)
/
(SN N ST T)
V/Hz
N-ST T
220-240V/50Hz
Temp. Control(Electronic/Mechanical)
Defrosting(Automatic/Manual)
Reversible Door
Handle(Recessed/Grip)
Lock
Refrigerant
Foam Blowing Agent
Electronic
Automatic
Yes
Grip
No
R600a
R141b or Cyclopentane
Shelf (Material/No.)
Door Basket
Interior Lamp
Vegetable Crisper
Vegetable Crisper Cover
Egg Tray
Can storage Dispenser
Deodorizer
Star Rating
Ice Maker (Automatic/Twist/Normal)
Shelf (Material/No.)
Drawer
N.A
N.A
N.A
N.A
N.A
N.A
N.A
N.A
4
Normal
No
Drawer (plastic)
Door Basket
No
Width/mm
Depth /mm
Height/mm
Width/mm
Height/mm
Depth/mm
Net/Packing/Kg
20Ft/40Ft/40H.C.
594
634
1752.5
648
1831
713
59/69
27/54/73
4
Single door serial
Service manual
3.Parts identification
1.Control panel 2.Ice tray (inside) 3.Upper drawer 4.Lamp (inside) 5.Air outlet 6.Drawers 7.
Drawers 8. Drawers 9. Drawers 10. Castors 11. Door
Note: Due to the updated modifications of our products, your refrigerator may differ slightly from
this Instruction Manual, but the functions and using methods remain the same.
Refrigerator (freezer)
5
Single door serial
Service manual
4.Refrigeration system diagram
when the refrigerator is just powered on. The refrigerant flows in the sequence: Compressor
Condenser
Dry filter
Capillary tube
Evaporator .
5.Circuit diagram
The electronic-controller directly controls the start and stop of compressor and hence the
refrigerator temperature.
Refrigerator (freezer)
6
Single door serial
Service manual
6.Maintenance service and Troubleshooting.
DEFECT
EFFECT
CAUSE
REMEDY
Group
partially or
completely
out of
refrigerant
charge
Evaporator dose not frost even though
motor-compressor runs continually.
An empty refrigerant system indicates
a leakage of R600a.this loss is
generally to be looked for at the
soldering points connecting the
various components or in an eventual
hole in the evaporator made by the
user.
Leakage must be
eliminated by
re-soldering the
defective point or
substituting the
damaged
evaporator.
Excessively
full
This defect is indicated by the presence
of water outside refrigerator near the
motor caused by formations of ice on
the return tube.
If in the refrigerant system a quantity
of R600a is introduced which is
greater than that indicated, the excess
gas dose not terminate its expansion
in the evaporator but proceeds into
the return tube.
The system must be
emptied and
subsequently refilled
introducing the
correct quantity of
R-600a.
Humidity in
the system
This defect is indicated by the partial
frosting of the evaporator and by
continual defrosting cycles determined
by the interruption of the flow of gas on
the evaporator. the motor compressor
keeps running.
The refrigerant system is humid when
there is a small percentage of water
present which not completely retained
by the dehydrator filter, enters into
circulation with the Freon and freezes
at the capillary exit in the evaporator.
The system must be
emptied and then
refilled after
eliminating the
humidity.
Presence of
air in the
system
Poor performance of the refrigerant
system which is indicated: on the
evaporator with a slight frost which
dose not freeze and an excessive
overheating of the condenser and
motor-compressor.
There is air in a refrigerating system
when during the filling phase vacuum
is not effected or it is not adequately
done.
Group must be
drained and
subsequently refilled
after carefully
creating vacuum.
Blocked
capillary
Because of the lack of circulation Freon
in the system, there is no frosting of the
evaporator, while a slight overheating
of the first spiral of the condenser is
noted.
Eventual impurities contained in the
Freon or in the components of the
refrigeration system before assembly
and not retained by the filter can
obstruct the capillary.
To restore the system
it must be emptied,
substitute the
capillary or the
evaporator entirely
in case the capillary
is coaxial with
respect to the return
tube, then refill it.
Motor
compressor
short-circuit
ed or
blocked
The system dose not work and the
“clixson” intervenes interrupting
delivery to the motor- compressor.
In case of short circuit the breakdown
is due to the electric winding if
blocked, there is a mechanical failure
in the motor-compressor.
The
motor-compressor
must be replaced
and then proceed
with refilling.
Motor-com
pressor
dose not
No frost forms on the evaporator even if
the motor-compressor is apparently
running regulary
In this case there is a mechanical
failure in the diaphram valves which
remaining continually open, do not
The
motor-compressor
must be replaced
Refrigerator (freezer)
7
Single door serial
Service manual
compress
Noisy
motor-comp
ressor
In case of mechanical failure in the
motor-compressor there in an excessive
noise when the system is functioning in
case a suspension spring is unhooked
banging will be heard and there will be
especially strong vibrations when the
system starts up and stops.
permit the piston to suck and
compressor the which consequentely
dose not circulate in the system.
and then proceed
with refilling.
The cause of the excessive noise is
normally to be sought for in a
mechanical break down and only
rarely in the unhooking of one of the
suspension springs.
The
motor-compressor
must be substituted
and then proceed
NO COOLING
The compressor
doesn’t run
Check if the current flows at the
contacting point of the thermostat
Poor contacting point
Replace the thermostat
Check the current flowing of
starting system
Shorted broken
Replace the device
Check if the current flows at the main
Coil shorted
Replace the compressor
coil of the compressor
Replace
components
Check the components on the main
circuit
Poor running of
the compressor
the
Measure the starting voltage
Low voltage
Increase the voltage
Check if the current flows at the
contacting point of the starting
system
Poor
contacting
point and broken
Replace the device
Check if the current flowing of
the sub coil of the compressor
Shorted
Replace the compressor
The coil of the compressor
Is the current amount of the
electric components normal
Refrigerator (freezer)
Replace the compressor
motor is worn out
8
Single door serial
Service manual
1
2
compressor runs
Frost doesn’t form at the evaporator
when operating set for more than
30min
Refrigerant leaks poor
compressing
Power source
separate the PTC-starter from the
compressor and measure the voltage
between M and C of the compressor
Equal
to
the
applied
voltage(rating voltage ±10%)
The applied voltage is not in the
range of rating voltage±10%
Advice the customer to use in
the fixed
Check
the
resistance of the
compressor
Test the resistance among M-C, S-C,
and M-S.
Repair
compressor
YES
2
4
YES
3
NO
3
Replace the compressor
3
Check
the
resistance of the
PTC
Test the resistance of the both
terminals in the PTC-STARTER
YES
4
NO
Replace the PTC-STARTER
4
the
Check OLP
Check if applying a
regular OLP
4
OLP works within 30sec, in forcible
OLP operation by turning instant
power on and off
YES
5
NO
Replace OLP
NO
5
Check
the
starting state
Measure minimum starting voltage after
checking steps1~3 above. And measure
the pressure balance of the PTC with the
interval of more than 5 min
Starts at the voltage of more than 90%
Starts at the voltage
of 85% below
Normal
Check the starting YES Normal.
state at the regular
NO
Replace the PTC
Refrigerator (freezer)
9
5
Single door serial
Service manual
PTC
Poor starting or
no operating of
the compressor
First, separate the PTC from the compressor and
check the voltage between NO 5 and 6 in the
PTC with a multitester or Wheatstone bridge
The value is in the range of
14-28 for the 22 Ω PTC
Normal.
Check
another
electric component
The value is 0
Abnormal
Replace the PTC
The value is
Abnormal
Replace the PTC
Separate the OLP from the compressor
and check resistance value between
two terminals of OLP with tester
YES
Check
another
components
electric
NO
Replace OLP
Refrigerator (freezer)
10
Single door serial
Service manual
7. Quality information report
Quality information
Thank you very much for purchasing Kelon products. In order to provide you with more satisfied products,
please kindly fill in the questionnaire as the items indicated below. We shall strive for best to optimize our
products based on your suggestion
Client name
Sale area
Date
No.
Product
model
Quality
describe
problem
Service result
Quantity
/rate
Factory serial No.
1
2
3
4
5
6
Quality problem of whole sale product: detail descriptions
client suggest
Factory activity
Refrigerator (freezer)
11
Single door serial
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement