Hisense RS-36DR series Manual de usuario
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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