Refrigerator service manual

Refrigerator service manual

Service manual

Refrigerator service manual

Double door serial

MODEL :RD-42WC4SFY(BCD-325WYHCE)

Refrigerator (freezer) Double 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) Double 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.

10)Close the top door before opening the bottom door, Otherwise, you might hit your might hit your head when you stand up.

Refrigerator (freezer) Double door serial

Service manual

2.Specification

Model No.

Type

Capacity

Net

RD-42WC4SFY(BCD-325WYHCE)

Bottom-mounted no-frost refrigerator/freezer

Total/ (L/Cu.Ft.)

Freezer/ (L/Cu.Ft.)

Refrigerator/ (L/Cu.Ft.)

325(11.5)

93(3.3)

232(8.2)

Performance

Climatic type (SN

N

ST

T) N, ST, T

Power V/Hz

Features

General

Features

Refrigerator

Compartment

Temp. Control(Electronic/Mechanical)

220~240/50 electronic

Defrosting(Automatic/Manual) automatic

Reversible Door yes

Handle(Recessed/Grip) grip

Lock no

Refrigerant R600a

Foam Blowing Agent cyclopentane

Shelf (Material/No.) tempered glass / 4

Door Basket

Interior Lamp

PS/6 (3big+3 small) yes

Vegetable Crisper

Vegetable Crisper Cover

Egg Tray yes yes /2 small yes

Freezer

Compartment

Can storage Dispenser no

Deodorizer optional

Star Rating

Ice Maker (Automatic/Twist/Normal)

4-star normal

Shelf (Material/No.) no

Door Basket no

Dimensions

Net Width/mm 595

Depth /mm 664

Height/mm 1960

Width/mm 648 Packing

Depth /mm 713

Height/mm 2025

Weight Net/Packing/Kg 86/94

Loading Capacity 20Ft/40Ft/40H.C.

End of Table.

27/54/71

Refrigerator (freezer) Double door serial

Service manual

3.Parts identification

[Refrigerator]

[Refrigerator]

Contr ol panel

Lam p p ort ( Inside)

Air o utlet glass shelf

Door rac k co ver

Door rac k

Egg rack (inside)

Door swit ch

Door rac k

Veget able dr awer

Crisper cover

Crisper

[Freezer]

Ic e tray (I nside)

Drawer in freez er

Door rac k

[Freezer]

Drawer in freez er

Caste r

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) Double 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. The door switch directly controls the start and stop of the lamp.

Refrigerator (freezer) Double door serial

Service manual

6.Maintenance service and Troubleshooting.

DEFECT EFFECT

Group Evaporator dose not frost even though motor-compressor runs continually. partially or completely out of refrigerant charge

Excessively full

Humidity in the system

Presence of air in the system

This defect is indicated by the presence of water outside refrigerator near the motor caused by formations of ice on the return tube.

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.

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.

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.

CAUSE

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.

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

REMEDY

Leakage must be eliminated by re-soldering the defective point or substituting the damaged evaporator.

The system must be emptied and subsequently refilled introducing the correct quantity of the return tube.

The refrigerant system is humid when there is a small percentage of water

R-600a.

The system must be emptied and then present which not completely retained by the dehydrator filter, enters into refilled after eliminating the circulation with the Freon and freezes at the capillary exit in the evaporator. humidity.

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

Motor compressor short-circuit ed or blocked

Motor-com pressor dose not

The system dose not work and the

“clixson” intervenes interrupting delivery to the motor- compressor.

No frost forms on the evaporator even if the motor-compressor is apparently running regulary

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.

In case of short circuit the breakdown is due to the electric winding if blocked, there is a mechanical failure in the motor-compressor.

In this case there is a mechanical failure in the diaphram valves which remaining continually open, do not

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.

The motor-compressor must be replaced and then proceed with refilling.

The motor-compressor must be replaced

Refrigerator (freezer) Double door serial

Service manual

compress permit the piston to suck and and then proceed with refilling.

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.

NO COOLING

compressor the which consequentely dose not circulate in the system.

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

The compressor doesn’t run

Check if the current flows at the contacting point of the thermostat

Check the current flowing of starting system

Check if the current flows at the main coil of the compressor

Check the components on the main circuit

Poor contacting point

Shorted broken

Coil shorted

Replace the thermostat

Replace the device

Replace the compressor

Replace the components

Poor running of the compressor

Measure the starting voltage

Check if the current flows at the contacting point of the starting system

Check if the current flowing of the sub coil of the compressor

Is the current amount of the electric components normal

Low voltage

Poor contacting point and broken

Shorted

The coil of the compressor motor is worn out

Increase the voltage

Replace the device

Replace the compressor

Replace the compressor

Refrigerator (freezer) Double door serial

Service manual

compressor runs

Refrigerant leaks poor Repair the

Frost doesn’t form at the evaporator when operating set for more than

30min

compressing compressor

1

2

3

4

5

Power source separate the PTC-starter from the compressor and measure the voltage between M and C of the compressor

The applied voltage is not in the range of rating voltage±10%

Check the Test the resistance among M-C, S-C, resistance of the compressor and M-S.

NO

Replace the compressor

Equal to the applied voltage(rating voltage ±10%)

Advice the customer to use in the fixed

YES

YES

2

4

3

3

Check the resistance of the

PTC

Test the resistance of the both terminals in the PTC-STARTER

NO

Replace the PTC-STARTER

YES

4

4

Check OLP Check if applying a regular OLP

NO

OLP works within 30sec, in forcible

OLP operation by turning instant power on and off

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

Check the starting state at the regular

NO

Replace the PTC

YES

NO

YES

Normal

Normal.

5

5

Replace OLP

Refrigerator (freezer) Double 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

The value is 0

Normal.

Abnormal

Check another electric component

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

NO

Check another electric components

Replace OLP

Refrigerator (freezer) Double 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

1

2

3

4

Quality problem Quantity describe /rate

5

6

Quality problem of whole sale product: detail descriptions client suggest

Factory activity

Factory serial No.

Refrigerator (freezer) Double door serial

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