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SAFETY PRECAUTIONS Please read the following before servicing your refrigerator . 1 . Check if electric leakage occurs in the set . 6 . Prevent water flowing to electric elements in mechanical parts . 2 . When servicing current applying parts , unplug prior to servicing . 7 . When tilting the set , remove any materials on the set , especially thin plate type ( ex , : glass plates or books . ) 3 . If testing with power on , wear rubber gloves to prevent electric shock , 8 . When servicing evaporator part , wear cotton gloves to prevent injury by sharp fins of the evaporator . 4 . Be sure to check regular current , voltage , and capacity . 9 . Do not open the sealed refrigeration system . It could 5 . Don't touch metal products in a cold freezer cause injury or pollute the air . Leave this job to an compartment with wet hands . It may cause frostbite or autherized servicer with the appropriate refrigerant other injury . recovery equipment . SERVICING PRECAUTIONS AIR RECHARGING IN COMPRESSOR Test the refrigeration system by connecting it electrically It is necessary to execute the soldering operation with before beginning the refilling operation . This is necessary valve open so that the fumes caused by oil residue can to ascertain the function of the motor - compressor and come out freely without blowholes between two tubes identify defects immediately . If defects have been found , during heating the point to be soldered . empty the old system of R134a residue by breaking off the The extension fitted with the male Hansen is connected to end of the extension piece at its narrow point . ( Figure 1 ) the female fitting of the vacuum pump tube . ( Figure 3 ) Use the appropriate refrigerant recovery equipment . Air evacuating from the system begins as soon as the Replace the filter and any damaged components . Unsolder pump starts . The refrigeration system must be kept under and pull off the piece remaining inside the service tube and vacuum until the reading on the low - pressure gauge then attach an extension with male Hansen , and last , indicates vacuum ( 0 absolute , - 1 atm . , - 760 mm hg . ) In any solder it to the same tube again . ( Figure 2 ) case , it is advisable to keep the pump running for about 60 minutes . ( Figure 4 ) POINT TO BE CHARGE TUBE FEMALE BROKEN EXTENSION HANSEN MALE HANSEN PRES ; GAUGE SERVICE TUBE SOLDERING EXTENSION POINT Figure 1 Figure 2 Figure 3 Figure 4 - 3 -
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If case that a considerable leakage occurs , it will be Before performing this operation ( if the vacuum pump and necessary to stop the vacuum pump and add a small refilling cylinder are connected ) , make sure that the valve quantity of Freon to the system , if vacuum should not be placed between the vacuum pump and refilling tube are obtained ( pressure gauge doesn't fall to 1 atmosphere , ) closed to keep the Freon from adding to the system . Start the refrigeration unit and find the leakage with a ( Figure 6 ) special leak4inder . When the defective soldering point is visible , repair it after opening the extension tube valve and reestablishing the normal outside pressure inside the system . FILLING OR VALVE TO BE Because the melted solder is sucked into the tubes and blocks them , the pressure must be rebalanced when REFILLING vacuum is in the system for soldering . As soon as the _ CHARGE TUBE OPENED WHEN vacuum operation is over , add the quantity ( in grams ) of R134a to the refrigeration system . Remember that every TO THE TO THE system has an exact quantity of R134a with a tolerance of REFRIGERATION CHARGE + 5 grams than can be added . ( Figure 5 ) SYSTEM CYLINDER TO THE VALVE TO BE VACUUM CLOSED PUMP AFTER VACUUM In addition , check the graduated scale on the cylinder for the quantity of R134a to be added ; for example , if we have 750 grams of Freon in the cylinder and must add 165 TO THE grams to the group , this amount will be reached when R - 134a CYLINDER R134a has dropped to 585 grams , remembering that the indicator shows a lower limit of meniscus . Do this after choosing the scale corresponding to the gas pressure different scales reported as the same gas pressure indicated by the pressure gauge on the top of the column . To make R134a flow into the system , open the valve placed at the base of the cylinder and connected to the filling tube . The amount of Freon cannot be added to the system all at once because it may cause a blocking of TO THE motor - compressor . Therefore , proceed by adding original REFRIGERATION SYSTEM quantity of about 20 - 30 grams and close the valve immediately thereafter , The pressure rises and the motor - compressor must start , sucking the gas and making the pressure go down again . Regulate the valve again , maintaining the same manner until reaching the quantity of R134a established for the system being charged . When the system is running , the suction pressure must be stabilized from 0.10 to 0.4 atmosphere . Use ONLY R134a refrigerant . Do not substitute any other type refrigerant . Do not mix refrigerants . - 4 -
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1 . SPECIFICATIONS 1 - 1 GR - 151 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS EVAPORATOR ROLL BOND TYPE DOOR TYPE 1 DOOR 19 X 331 / 2X 215 / 8in NET CAPACITY 4.42ft 3 DIMENSION ( W X H X D ) NET WEIGHT 66.14 Ib CONDENSER TYPE WALL CONDENSER REFRIGERANT ( FLUSH BACK ) R - 134a ( 3.35 oz ) LUBRICANT NS Series DEFROSTING SYSTEM MANUAL HTS - 150 FREOL c _ 22G COMPRESSOR TEMPERATURE CONTROL KNOB DIAL ( 180 cc ) ( 180 cc ) INSULATION DOOR POLYURETHANE CABINET POLYURETHANE 2 . PARTS IDENTIFICATION EVAPORATOR ( Inside Door ) _ _ THERMOSTAT - The heart of the refrigerator . _ \ \ Regulates the operation of - It evaporates the refrigerant \ \ J the motor and controls the fluid and thereby absorbs \ \ temperature inside the heat from the interier . \ refrigerator . ICE CUBETRAY Ice cubes are easy to Keeps bottles , cans , or jars . remove from the tray = RTER Keeps any kinds of bottles . DRIP TRAY Catches the water that drips off the evaporator when defrosting . GASKET PLASTIC COATED Tight fitting door seal SHELVES keeps all the cooling Have full width and can power locked inside . slide out . No hooks or latches . GLASSLID & VEGETABLECONTAINER BAR Keeps cans . NOTE : This is a basic model . The shape of refrigerator is subject to change . - 5 -
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3 . DISASSEMBLY * Disconnect the power before working on the refrigerator . A . DOOR 3 . Pull off Knob Dial . ( Figure 8 ) 4 . Pull out thermostat in the thermostat cover , and 1 . Loosen 3 screws holding an upper hinge to separate the disconnect lead wires . ( Figure 10 ) door body . ( Figure 7 ) NOTE : Replace a proper specification new thermostat . Figure 10 Figure 7 C . COMPRESSOR AND PTC B . THERMOSTAT 1 . Remove Protector Cover , Power Cord , and Lead Wire 1 . Seperator feeler of thermostat from evaporator . first . ( Figure 11 ) 2 . Loosen I screw holding the case to remove the 2 . Remove OLR Thermostat cover . ( Figure 9 ) 3 . Remove PTC . 4 . Remove the Compressor Base by loosening 4 bolts fixed to base plate of the set . ( Figure 12 ) Figure 8 Figure 9 Figure 11 Figure 12 5 . Remove the Compressor by loosening 2 earth screws next to Compressor . NOTE : Replace the Compressor , after peeling off painted part of earth terminal . • Compressor inhales the gas evaporated from Evaporator , condenses this gas and then delivers to Condenser . • PTC is abbreviation of Positive Temperature Coefficient , is attatched to the Compressor and operates motor . • OLP prevents Motor coil from being started inside Compressor . • Do not turn the Adjust Screw of OLP in any way for normal operation of OLR - 6 -
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4 . CIRCUIT DIAGRAM CIRCUIT DIAGRAM " _ ' IERMOSTAT BK YL : YELLOW BK : BLACKE BK BL : BLU GN ( GNHL ) c = m GN : GREEN IFJ PK : PINK BL F _ T . CSTARB _ R THE PLUG TYPE ON CIRCUIT DIAGRAM IS SUBJECT TO CHANGE IN DIFFERENT LOCAL'nES . B854JD1009E NOTE : This is a basic circuit diagram . The specifications vary in different localities . - 7 -
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TROUBLESHOOTING DEFECT EFFECT CAUSE REMEDY SYSTEM Evaporatordoesnot frost even An empty refrigerantsystem Leakagemust be eliminatedby PARTIALLY OR though motor - compressorruns indicatesa leakaged R134a . This resolderingthedefectivepointor COMPLETELY OUT continually . lossis generallyto belookedfor at substitutingthe damaged OF REFRIGERANT the soldering pointsconnectingthe evaporator . CHARGE various componentsor in an eventualhole in the evaporator madeby the user . EXCESSIVELY This defect is indicatedby the If in the refrigerantsystema quantity The system mustbe emptiedand of R134a is introducedwhich is FULL presenceof water outside the subsequentlyrefilled introducingthe refrigeratornearthe motor caused greaterthan that indicated , the correctquantityof R134a . by formationsof iceon the return excessgas does notterminateits tube . expansionin the evaporatorbut proceedsintothe returntube . HUMIDITY IN THE This defect is indicatedby the partial The refrigerantsystemis humid The system mustbe emptiedand SYSTEM frostingof the evaporatorand by when there is a small percentageof then refilled aftereliminatingthe continua { defrostingcycles water present , which , not completely humidity . determinedby the interruptionof the retainedby the dehydratorfilter , entersintocirculationwith the flow of gas onthe evaporator . The motor compressorkeepsrunning . Freon ® and freezesat the capillary exit inthe evaporator . PRESENCE OF AIR Poorperformanced the refrigerant There is air in the refrigerating Groupmust bedrained and IN THE SYSTEM systemwhich is indicatedonthe systemwhenduring thefilling phase subsequentlyrefilled aftercarefully vacuumis not effectedor it is not evaporatorwith a slightfrost which creatingvacuum . does notfreeze and an excessive adequatelydone . overheatingof the condenserand motor - compressor . Becaused the lackd circulation BLOCKED Impuritiescontainedin the Freon @ To restorethesystem it must be CAPILLARY Freon ® in thesystem , there is no or in thecomponentsof the emptied , substitutethe capillaryor frostingof the evaporator , whilea refrigerationsystem before the evaporatorentirely incase the slight overheatingof the first spiralof assemblyand not retainedby the capillaryis coaxialwith respectto the condenseris noted . the returntube , then refill it . filter can obstructthe capillary . MOTOR - The systemdoes notwork and the In caseof short circuit , the The motor , compressormust be COMPRESSOR breakdownis due to the electric " OLP " intervenesinterrupting replacedand then proceedwith SHORT - CIRCUITED deliveryto the motor - compressor . winding . If blocked , there is a refilling . mechanicalfailure in the motor - OR BLOCKED compressor . MOTOR - In this casethere is a mechanical Nofrost formson the evaporator , The motoFcomprossormust be COMPRESSOR even if themotor - compressoris failure in the diaphramvalveswhich replacedand then proceedwith DOSE NOT apparentlyrunning regulary , remainingcontinuallyopen , donot refilling . COMPRESS permitthe compressorto operate . Consequenteiy , Freon ® does not circulatein the system . In caseof mechanicalfailure inthe The causeof the excessivenoiseis NOISY MOTOR - The motor , compressormust be COMPRESSOR motor - compressorthere in an normallyto be soughtfor in a replacedand then proceedwith the excessivenoisewhenthe system is mechanicalbreakdown , and only refilling . functioning . In casea suspension rarelyin the unhookingof one of the spring is unhooked , bangingwill be suspensionsprings . heard and therewill beespecially strongvibrationswhen thesystem starts upand stops . - 8 -
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NO COOLING The Compressor doesn't run . - - ' _ flows at the contacting Poor contacting point Thermostat . point of the Thermostat . _ _ _ Check if the current _ H Replace the Replace the device . - - ' ) ' flowing of starting Broken Check the current _ . _ Shorted or H system . Replace the - - ' _ flows at the main coil of Coil shorted Compressor . Check if the current H _ [ the Comprossor . Replace the on the main circuit . components . . _ _ Check the components Poor running of the Compressor . _ _ _ _ . . _ Measure the starting voltage . _ . _ Low voltage _ [ Increase the voltage . at the contacting point of Poor contacting point Replace the device . the starting system , and broken Check if the current flows _ _ [ Check if the current flows I . I ] . I Replace the Compressor . Compressor . to the sub coil of the _ Shorted the electric components Compressor Motor is Compressor . sthecHrTehone'ttachHoeouenatort , he normal ? worn out . Repair the Compressor runs . Poor compressing . Compressor . Evaporator when Refrigerant leaks . H operating set for more _ 1 rost doesn't form at the _ _ _ than 30 rain . - 9 -
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COMPRESSOR AND ANOTHER ELECTRIC COMPONENTS Separate the PTC - STARTER from voltage , ( Rating the Compressor and measure the voltage + 10 % ) voltage between M and C of the [ _ Power Source H Equal to the applied Compressor . The applied voltage is not in the to use in the range of Rating Voltage + 10 % . H dvice the customer specified range . Check the resistance of the M - C , S - C , and M - S . H Test the resistance among Compressor Motor . Replace the Compressor . i [ YES [ _ Check the I I Test the resistance of the both , D > PTC . resistance of the _ 1 terminals in the PTC - STARTER , NO Replace the PTC - STARTER . - - 9 > Check OLR D > regular pOLRplying H Check if a a YES . . _ in forcible OLP operation by turning instant power on 0LP works within 30 sec . and off . NO _ Replace OLR NO j , Measure minimum starting voltage after checking steps 1 - 3 above , Check the Normal . Measure the pressure balance of of 85 % below . starting state . the PTC at the interval of more . _ Starts at the voltage than 5 min . Starts at the voltage of state at the regular more than 90 % . - - _ Normal . voltage above . Check the starting NO Replace the PTC .
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PTC First , separate the PTC from the Compressor and check the Poor starting or no voltage between NO 5 and 6 operating of the in the PTC with a multitester or Compressor . Wheatstone Bridge . range of 15 - 28 for Normal electric Tthhee 2v2a _ luePTisC . in the _ q Ccohmecpkonoetnhtesr . Abnormal - _ The value is 0 . H PTC . Replace the Abnormal • _ The value is _ . H PTC . Replace the Separate the OLP from the Compressor and electric components . YE _ Check another check resistance value between two terminals of OLP with Tester . - - _ Replace OLR I o ÷ m ÷ - 11 -
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5 . EXPLODED VIEW I I - 12 -
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