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5 Normal Phenomena—Not Troubles for Refrigerators 

In a domestic refrigerator, there is not only a complicated electric controlsystem, but 

also a refrigerating system that is difficult to discern whether it is in a good working 

condition. Both the systems are related and affect each other. If a certain part of a 

refrigerator  works  abnormally  .Its  refrigerating  efficiency  will  decrease  ,operation 

properties will become unstable ,or even it cannot be used normally for those serious 

cases.  Refrigerators  are  generally  of  larger  volume  ,once  troubles  appear  ,to  send 

them to a service department is really a tough thing ,if such is the case ,the user will 

always be in suspense ,sometimes ,normal phenomena will be erroneously regarded as 

troubles .Therefore ,before we deal with the topics of frequently occurring troubles of 

refrigerators and their remedies, we should firstly give a brief account of some normal 

phenomena which are not troubles .In case any one of such phenomena occurs ,there is 

no need to worry about it ,and the user can use it at total ease . 1).When the compressor 

of a refrigerator has just stopped running ,a rumbling sound can be heard from inside its 

evaporator .This is a sound caused by the flowing of refrigerant in the evaporator tubing 

.Because the pressure difference is still greater after the compressor has just stopped 

running ,the refrigerant will flow for a certain time , therefore ,this sound is a normal 

phenomenon.

2).A click sound can often be heard from the refrigerator .This is a

normal sound produced by the pull-in or release of the armature of a current deadweight 

start relay when starting the compressor .The compressor motor will produce a slight 

and uniform sound while it is running .This sound is not easy to be heard in the daytime 

,but of course it can be heard distinctly at night.

3).The compressor consists of an electric motor and a compressing apparatus .During 

its normal operatio ,the motor›s stator core and windings will rise to a temperature 

in the range of 100°C~110°C ,and the temperature of the piston and cylinder of the 

compressing mechanism can also reach as above 100°C due to the heat produced when 

compressing refrigerant .Most of the heat radiates to the air through the compressor 

casing ,therefore ,its casing is generally at a temperature between 85°C ~90°C ,it is very 

hot ,particularly in summer when the ambient temperature is higher .All these are 

normal phenomena .

4 The compressor doesn›t work

Содержание MCSF-5585BSS

Страница 1: ...Please read the following instructions completely before operating this appliance INSTRUCTION MANUAL REFRIGERATOR MCSR 6085W MCSR 6085B MCSR 6085BSS MCSR 5585W MCSR 5283W MCSF 5585BSS ...

Страница 2: ...ricefromsurfacesoftherefrigeratorand orfreezercompartment Doingsocouldpuncturethecoolingcoil causingtheunittoloseitsabilitytomaintaincoldtemperaturesandvoidingthewarranty SeetheCareandCleaningsectionforinstructionsondefrostingtherefrigeratorand or freezercompartment ...

Страница 3: ...ECTRICITY 4 operationinstruction 5 ControlSettings 5 Abouttherefrigeratorfeatures 6 Careandcleaningoftherefrigerator 6 Careandcleaningoftherefrigerator 6 Careandcleaningoftherefrigerator 7 Preparingtoinstalltherefrigerator 8 Troubleshootingtips 10 Safetyprecautions 12 ...

Страница 4: ...sibility andobligationtohaveitreplacedwithaproperlygrounded3 prongwalloutlet The refrigerator should always be plugged into its own individual electrical outlet whichhasavoltageratingthatmatchestheratingplate SafetyInstructions IMPORTANTSAFETYINFORMATION READALLINSTRUCTIONSBEFOREUSING UsethisapplianceonlyforitsintendedpurposeasdescribedinthisOwner sManual SAFETYPRECAUTIONS Whenusingelectricalappli...

Страница 5: ...hemilktest Placeacontainerofmilkonashelfandcheckitadaylater Ifthemilkis toowarmortoocold adjustthetemperaturecontrol Afterchangingthecontrol allow This provides the best performance and also prevents overloading house wiring circuitswhichcouldcauseafirehazardfromoverheatedwires Never unplug your refrigerator by pulling on the power cord Always grip plug firmlyandpullstraightoutfromtheoutlet Repair...

Страница 6: ...nside To help prevent odors leave an open box of baking soda in the refrigerator Unplug the refrigerator before cleaning If this is not practical wring excess moisture out of sponge or cloth when cleaning around the control Use warm water and baking soda solution aboutatablespoon 15ml ofbakingsodatoaquart 1liter ofwater Thisbothcleans andneutralizesodors Rinseandwipedry Otherpartsoftherefrigerator...

Страница 7: ...er unscrew the lens and pull horizontally until the lens is removed Gently unscrew the light bulb and replace with a bulb of 15 watts orless Careandcleaningoftherefrigerator Defrosting Defrost whenever frost on the wall of the Freezer compartment becomes 164 4 mm thick Never use a sharp or metallic instrument to remove frost as it may damage the cooling coils A punctured cooling coil will cause se...

Страница 8: ...lyandcarefully RefrigeratorLocation Do not install the refrigerator where the temperature will go below 50 F 10 C becauseitwillnotrunoftenenoughtomaintainpropertemperatures Installitonafloorstrongenoughtosupportitfullyloaded Donotinstallitcloserthan5 13cm nexttoarange Donotinstallitinarecessedarea Donotbuildintherefrigerator Clearances Allowthefollowingclearancesforeaseofinstallationandproper airc...

Страница 9: ...gerator 12 Re install the adjustable legs Insure that the smaller leg is on the same side as the bottomhinge 13 Placethefreshfooddooronthebottomhinge 14 Place the bottom peg of the middle hinge in the fresh food door Re install middle hinge Make sure the fresh food door is aligned with the refrigerator cabinet before tighteningscrews 15 Place the freezer door on the top peg of the middle hinge Pla...

Страница 10: ...10 Troubleshootingtips Savetimeandmoney ...

Страница 11: ...Safety precautions ...

Страница 12: ...12 Safetyprecautions ...

Страница 13: ...n Thickinsulationforenergyefficiency SystemFlowChart 1 SchematicdiagramofSystemFlowChart 2BriefDescriptionofSystemFlowChart Allmodelsareadirectcoolingsingle systemrefrigeratororfreezer Whenthe refrigeratororfreezerisjustpoweredon therefrigerantflowsinthesequence 1 2 3 4 5 1 ...

Страница 14: ...ooting 1 Nocooling CircuitDiagram 1SchematicCircuitDiagram BriefDescriptionofControlPrinciple Amechanicaltypeofallthecontrolisgenerallyadopted Thethermostatdirectlycontrolsthestartandstopofcompressor and hencetherefrigeratortemperature ...

Страница 15: ...15 3Coolingcapacityisinsufficient 2Thecompressordoesn tstop ...

Страница 16: ...ststoppedrunning arumblingsoundcanbeheardfrominsideits evaporator Thisisasoundcausedbytheflowingofrefrigerantintheevaporatortubing Because the pressure difference is still greater after the compressor has just stopped running the refrigerant will flow for a certain time therefore this sound is a normal phenomenon 2 Aclicksoundcanoftenbeheardfromtherefrigerator Thisisa normalsoundproducedbythepull ...

Страница 17: ... inside the compressor this means that some moving parts have loosened note to differentiate this sound from thoseformedduringstartingorstoppingthecompressor 4 For the direct cooling refrigerator a kind of irregular crack sound can be often heard when the compressor is running for a certain period of time or has just stopped its running Thissoundiscausedbythestressreliefduetoexpansionandcontractio...

Страница 18: ...tothosepartsthatareliableto leak check main connection points for oil seepage and tubing for cracks If there is no b ListentothesoundcausedbytheflowingofgasintheevaporatorOpentherefrigerator doorwhilethecompressorisinoperation inclineyourearandlistenattentivelythegas flow sound inside the evaporator If it sounds like gentle whistling accompanied by a sound similar to water flowing this is the soun...

Страница 19: ...or the heat conduction effect will be severer leak point charge the system with nitrogen and detect leak points with the commonlyadoptedmethod repairthem evacuate chargethesystemwithrefrigerant andthenturnontherefrigeratortomakeatestrun 2 Toomuchrefrigerantchargedintothesystem AnalysisofTrouble a In case the amount of refrigerant charged into the system exceeds its nominal capacity the superfluous...

Страница 20: ...ently sometimes therefrigeratorworkswell andsometimesnotwell Inorder todeterminewhetheritiscloggedwithice heatthesuspiciouspointswithhotwaterto make ice melt and after a while if a gas flowing sound resulting from an abrupt gush is heard and the gas suction pressure rises as well itcan be confirmed that the trouble is severelyaffected thuscausingapoorrefrigeratingeffect RemedyItisquitedifficultto ...

Страница 21: ...he system with a properquantityofrefrigerant b Air left in the system Analysis of Trouble The residual air in the system will circulate togetherwiththerefrigerantinthesystem Themajorsymptomscausedbythisresidual causedbyiceclogging RemedyIfthereistoomuchmoistureintherefrigeratingsystem itisadvisabletoreleasetherefrigerant purgethetubingwithnitrogen andthencharge the system with the filtered refrige...

Страница 22: ...due to the leakage of temperature airishighergasdischargepressure higherdischargedgastemperature thegasdischarge tubing is considerably hot when you feel it with your hand and poorer refrigerating effect Furthermore the gas discharge pressure will exceed its normal value when the compressor has run for a period not too long thus making the protective relay actuate andbringtoastoppage RemedyCheckup...

Страница 23: ...rationtemperatureinthesystemistoo high thetemperaturesensingagentinthetemperaturesensorisalsohotter therefore sensing agent from the temperature sensor Remedy Remove the relay cover to check up its contacts if they are open this means that the original setting is not properly set ortemperaturesensingagenthasleakedoutofthetemperaturesensor Trytoturnthe adjusting stem of this value in the direction ...

Страница 24: ...ndthattherefrigerantinthesystemisinsufficientinquantity recharge it with refrigerant In case clogging occurs disassemble the part where it is blocked If the evaporation temperature is too high settle this problem with an appropriatequantityofrefrigerant 3 No stoppage of compressor due to damaged heat insulation layer inside case body and ordoorsealAnalysisofTroubleWhentheheat insulationlayerinside...

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