Hisense RS-36DR series Bedienungsanleitung

Refrigerator

Service manual

MODEL: RS-36DR*(BCD-275Q)

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

Contents

Parts Description.......................................................................................................................................................... 3

Circuit diagram............................................................................................................................................................ 3

Cooling diagram.......................................................................................................................................................... 4

The guide for Disassembly Common parts of Refrigerator......................................................................................... 5

◆The instruction of replacing thermostat................................................................................................................. 5

◆The instruction of replacing lamp.......................................................................................................................... 5

◆The instruction of replacing Door switch.............................................................................................................. 6

◆The instruction of replacing PTC Starting relay and Overload protector.................................................... 6

Troubleshooting........................................................................................................................................................... 7

◆The common problem judging method.................................................................................................................. 7

◆The solution for the common problem................................................................................................................... 8

Note: ...........................................................................................................................................................................11

Parts Description

1.Temperature regulator 2.Storage shelf. 3.Crisper Cover 4.Crisper 5.Upper Drawer in freezer

6.Middle Drawer in freezer 7.Lower Drawer in freezer 8.Upper Door shelf 9.Lower Door shelf

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

thermostat box

Unplug the

connecting wire

Take out the

thermostat

◆The instruction of replacing lamp.

The location of the

LED lamp

The operation of

replacing LED lamp is

same to remove

thermostat

1、Remove the LED

lamp cover

2、Take out the lamp

◆The instruction of replacing Door switch.

The location of door

switch

Take out the door

switch with a

screwdriver

◆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

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

First stop unit for several minutes,

and then open charging tube,

discharge all of g

as. Change a

new filter, and then recharge gas,

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.

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

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.

Change a new compressor.

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 A, Ice blocking First stop unit for several minutes, and then

that blocked the liquid

cycle system 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.

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.

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