Hisense RS-09DC4S Series Bedienungsanleitung

REFRIGERATOR

Service manual

MODEL:

RS-09DC4S*（BD-65）

NOTE:

This is a basic model.the shape and specification of refrigerator is subject to change.

PARTS INENTIFICATION

NOTE: This figure is only a sketch Of the Refrigerator, and the actual Products may differ from it.

CIRCUIT DIAGRAM

COOLING DIAGRAM

The guide for Disassembly Common parts of Refrigerator

◆

The instruction of replacing thermostat.

The location of the

thermostat

remove screws of

top cover

Capillary

Compressor

Dry filter

Condenser

Evaporator

Unplug the

connecting wire

Take out the

thermostat

◆

The instruction of replacing PTC Starting relay and Overload protector.

Take down Spring tap

and Cover.

Unplug the

connecting wire

Take out the PTC

Starting relay and

Overload protector

Door Reversal

TROUBLESHOOTING

◆

The common problem judging method

Problem Cause

Refrigerator can’t

start

1.1 Is the power cord connecting well？

1.2 Is the power voltage too low？

1.3 Is the ambient temperature too low?

1.4 Is the circuit on power?

1.5 Is there some default in compressor

1.6 Is the refrigeration system blocked by ice or dirty, please stop the unit and

restart after 10 minutes to see if the compressor can start.

Weak cooling effects

2.1 Is there any heat source around the refrigerator?

2.2 Is there enough space around the refrigerator for rejection of heat?

2.3 Is the setting of the temperature appropriate?

2.4 Is there too much food or overheating food in it?

2.5 Does the door open frequently?

2.6 Is the door completely closed?

2.7 Does the gasket destroyed or distort?

2.8 Does the gas leak?

The unit can not stop

running

3.1 Is there any heat source around the refrigerator?

3.2 Is there enough space around the refrigerator for rejection of heat?

3.3 Is the setting of the temperature appropriate?

3.4 Is there too much food or overheating food in it?

3.5 Does the door open frequently?

3.6 Is the door completely closed?

3.7 Does the gasket destroyed or distort?

3.8 Is the thermostat good operation?

3.9 Does the gas leak?

Ice up in the freezing

chamber

4.1 Is the setting of the temperature appropriate?

4.2 Is there multi-moisture food and too close to the back wall of the refrigerator?

4.3 Is the ambient temperature too low?

4.4 Is the electric parts on good condition, specially the thermostat wich will

cause the unit non-stopping

Abnormal noise

5.1 Is the refrigerator stably placed?

5.2 Does the refrigerator bump other objects?

5.3 Whether the internal accessory of the refrigerator is in the right place.

5.4 Whether the water plate of compressor is fall from the unit.

5.5 Does the tube of the refrigeration system bump each other?

5.6 The noise sound likes Water flow inside the refrigerator, in fact,it is normal,

which is caused both when refrigerator start and shut-

down; in addition,

frost-dissolving causes this sound, too, which is a normal phenomenon.

5.7 There will be a cracking sound in the cabinet ,when the cabinet or cabinet

accessory contracting or expanding, this sound will be made, which is normal.

5.8 The motor operation sound in the compressor is appears to be louder at night

or begin starting. which is a normal phenomenon; also the uneven placing would

lead to too much running noise.

There is a peculiar

smell in the units

6.1 Is the food with special smell sealed tight?

6.2 Does it have long time storing food or degenerated food?

6.3 Whether the internal cabinet needs cleaning.

the forefront or the

middle cabinet heats 7.1 As fridge Anti-

condensation tube is placed here and caused the above

phenomenon, which is normal.

Refrigerator’s two

sides or the back

heat

8.1 As condensation tube is placed here and caused the above phenomenon,

which is normal.

the cabinet surface

condensation 9.1 Air humidity is too large.

◆

The solution for the common problem.

1.Cooling is not enough good

(Many reasons might cause that cooling not enough good, as blow :)

Reason analysis Solutions

1) Leakage of Gas

If some gas leaked unit will work not well.

Phenomenon of failure:

a. lower pressure of liquid cycle system

b. high temperature of copper tube of

discharging gas, hand feels very hot.

C. much noise, sounds like “ZZZZZ”, comes

from outlet of capillary.

d. the temperature fell down very slowly.

First find out the point of leaking

on tube, and then sealed it,

vacuuming it, finally recharge with

Gas.

Note:

If you find oil on somewhere, it is

possible that leakage point is

there.

2) The quantity of

Gas is too much

If too much Gas was charged into the cycle

system, the extra gas will occupy some

space of evaporator, so that the area of heat

exchange becomes less, unit will work not

well.

Phenomenon of failure:

a, higher pressure of liquid cycle system

than norm.

b, higher temperature of condenser.

c, larger electric current of compressor

d, there maybe ice on the suction tube.

e, when gas is too much, some gas liquid

might goes back into compressor,

compressor will be damaged by liquid.

First stop unit for several minutes,

and then open charging tube,

discharge all of g

as. Change a

new filter, and then recharge gas,

finally sealed the system.

3) There is air in the

liquid cycle system

The air in system will cause lower efficiency

of cooling.

Phenomenon of failure:

a, higher pressure of liquid cycle system

than norm, but the pressure is not over the

limit.

b, higher temperature of discharging tube.

C, much noise

First stop unit for several minutes,

and then open charging tube,

discharge all of g

as. Change a

new filter, and then recharge gas,

finally sealed the system.

4)Low working

efficiency of

compressor

General when a compressor works for many

years, some parts of compressor were wear,

so that compressor discharge less gas out,

unit does not work strongly.

Phenomenon of failure:

a, lower pressure of discharging, check the

pressure of system with pressure meter to

Change a new compressor.

see if it is normal.

b, higher temperature of compressor

surface.

C, cut off the discharging tube, to see if you

can block the gas coming out of the tube

when compressor is working.

5) There is something

that blocked the liquid

cycle system

Some time there is something blocked the

filter of liquid cycle system, so that unit is not

cold.

Phenomenon of failure:

a, lower pressure of discharging

b, lower temperature of discharging.

Change a new filter

2.NO COOL

(Popular failure reasons are below):

Reason analysis Solutions:

1) Leakage of gas

Phenomenon of failure:

a, leaking fast

b, leaking slowly

c, no voice of liquid flowing

d, cut off charging tube, no gas

goes out.

First find out the point of leaking on tube,

and then sealed it, vacuuming it, finally

recharge with gas.

Note：

If you find oil on somewhere, it is possible

that leakage point is there.

2)There is some thing

that blocked the liquid

cycle system

A, Ice blocking

Sometime because unknown

reason water comes into liquid

cycle system, the capillary will be

blocked by water after unit runs for

period of time.

Phenomenon of failure:

The unit works well in the

inception, after period of time the

ice appears in the capillary and

becomes more and more, till

blocks the hole of capillary

completely. In the moment you

can find the ice on the evaporator

defrosts. The noise of liquid flow

disappears. The pressure of

absorbing becomes negative.

The phenomenon above will

appear again and again.

The way to check ice blocking:

Warm the capillary with a hot

towel, after a while the ice in the

capillary melt, you can hear a

sound of gas flow comes from the

capillary abruptly. The pressure of

absorbing becomes higher. It is

Ice blocking.

First stop unit for several minutes, and then

open charging tube, discharge all of gas.

Blow the cycle system with gas of nitrogen,

and then recharge Gas, finally sealed the

system.

B, there is offal block the capillary

Phenomenon of failure:

If the capillary is blocked by

something such as offal etc., the

sound of liquid flow disappears.

The ice on the evaporator defrosts

The pressure of absorbing

becomes negative.

Higher temperature of discharging

tube

The way to check offal blocking:

If you warm capillary with the way

of checking ice blocking, there is

no change. It must be offal

blocking.

First stop unit for several minutes, and then

open charging tube, discharge all of gas.

Blow the cycle system with gas of nitrogen.

Change a new capillary and filter, and then

recharge Gas, finally sealed the system.

COMPRESSOR NEVER STOPS：

Reason Solutions

1)The setting temperature is not reasonable. Readjust the temperature setting.

2) the sensor is bad. Replace the sensor.

3)Seal of door is damaged. Replace the gasket

4)Too much food in the refrigerator Please put the food properly.

5)Wind door is broken. Replace wind door.

6)Fan motor is broken. Replace fan motor

Note:

● Before doing these operations above, disconnect the main power supply. Failure to do so could result

in electrical shock or personal injury.

● In case of any detailed technical information please check with the technical specifications.

◆announcements of Maintenance operation safety

In order to you can safely overhaul the operation must comply with the following, the matters needing

attention:

1、Notes:

The refrigerator maintenance should pay attention to the nearby fireworks, especially in the use of

gas tools for after welding, must first will gas flame, can other repair, refrigerant because of flame, the

spark and capacitor later produce poisonous gas；

Never in the poor ventilation and airtight room within the welding；

Emission refrigerant, be sure to make the room is well ventilated；

Cut off the compressor muffler and exhaust pipe, attention shall be paid to the surplus within the

cold media and internal pressure

2、Unplugged the attaching plug:

Will the refrigerator for repair, must first pull out the power plug, assure maintenance safety。

3、Prevent to electric shock:

Usually for repair shall first will cut off power supply. If must be energized check circuit, should be

careful to get an electric shock, do not touch charged area. Maintenance if discover the wire aging,

should change in time。

4、The correct use of spare parts:

Maintenance of the need to replace parts of the same model, must be the parts (repairing parts

listed in the table), do not get optional change other models or other brand of spare parts, the more

don't maintain spare parts, avoid p other accidents。

5．The correct use of maintenance tools:

Maintenance must use the proper maintenance tools. Improper use tools may cause bad contact

or fastening rickety and accidents。

6．Wire connection:

Reconnecting first must weld, or use connected terminals, and insulation tape sealing, ensure

good contacts。

7．Insulation testing:

after the maintenance assembly, the insulation resistance testing must use a multimeter to

confirm insulation resistance, up to 1 M Ω above, can electrify operation。

8．Grounding check:

After repair must use a multimeter fortesting grounding resistance , confirm for the grounding

resistance is less than 0.15 Ω,namely,grounding is good.if grounding bad or incomplete, should be

handled in time, ensure complete, good, reliable grounding。

9．Pay attention to the child:

The refrigerator for repair, attention shall be paid to prevent children from near, lest produce risk。

10．Clean:

After the maintenance the refrigerator is necessary to clean, and inform the users

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