Husky Retro Undercounter Refrigerator
Contents
1. 220 240v 50Hz Power Input 110w Energy Consumption kWh 24h 0 31 Shelf Material No Tempered glass with silver plastic coloured trim Two plus half shelf over salad crisper drawer Noise Level dB A 39 FEATURES Temp Control Manual 0 7 7 coldest Door Storage Three shelves with silver plastic coated metal wire retainers Performance 0 10 C nterior Light Yes Reversible Door Yes Adjustable Feet Yes two at the front Wine Rack Yes shelf hanging suitable for two bottles Plug UK Lock No Finishing Painted MISCELLANEOUS Unit Colour Gloss Black Lead Time Approx 12 weeks from order Interior White Country of origin PRC Husky Branding Husky logo Suitability Domestic Light Commercial Refrigerant Charged Volume R600 29g Container quantity standard packaging Foam Blowing Agent Cyclopentane DIMENSIONS 40 HC Container Load 238 APPROVAL Nett HxWxD mm 840x550x550 Approval CE RoHS LVD EMC 2014 Husky Retail Ltd We reserve the right to change product specifications at any time without notice ENGLISH HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL ENGINEER S SERVICE MANUAL Safety Precautions Do not damage power cable Be sure not to pull out the plug of the appliance by drawing the power cable Be sure to directly pull it of the outlet by firmly grasp2. Is the ambient temperature lower than 16 C Check that the thermostat is correct Is the power of 220V output Does the compressor have 220V output Check and repair compressor and accessory Adjust and instruct the consumer how to use Check and repair the control panel Check all wires and power cables ENGLISH HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL Maintenance Service amp Troubleshooting 5 Normal phenomena no service issue In a domestic refrigerator there is not only a complicated electric control system but also a refrigerating system that makes it difficult to discern whether it is in agood 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 problems appear it may be difficult to determine if a service department should be involved The user may be confused sometimes normal phenomena will be wrongly identified as service issues Therefore before we deal with the topics of frequently occurring problems of refrigerators and their remedies we should firstly give a brief account of some normal phenomena which are not problems If such phenomena occurs the user may continue to use the unit without concern 1 When the compr
3. actuate and the fuse blow hence the motor stops running If the motor is still running continuously in such a case its windings may be burned out REMEDY Reduce the thermal load pay attention to the variation in voltage of the power supply c Abnormal thermal protection ANALYSIS The compressor current is within its normal range but the thermal protector actuates repeatedly REMEDY Replace the thermal protector with a new one ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR the motor not running or humming 2 Check the circuit voltage to see whether it is normal ANALYSIS If the circuit voltage is obviously lower than its rated value it will be difficult to start the motor and a humming sound can be heard from it REMEDY Measure the voltage with a voltmeter if it is too low give directions to the user for buying a stabiliser to step up the voltage Thus normal operation can be achieved 3 Check the thermal relay to see whether its contacts are closed ANALYSIS The contacts of thermal relay sometimes may be open due to the leakage of temperature 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 or temperature sensing agent has leaked out of the temperature sensor Try to turn the adjusting stem of this value in the direction of the lower temperature graduation then check the contacts to see whether t
4. already percolated If neither the flowing sound nor the gas sounds from the evaporator can be heard this means that the filter or capillary has been clogged 3 TOUCH AND FEEL a Feel the compressor when running Its temperature should be generally less than 90 C in its normal state though it may exceed 90 C if running for a longer period of time b After the compressor has operated normally for 5 10 minutes touch and feel the condenser The temperature of its upper part should be higher than that of its lower part or its right part is hotter than its left part depending on the type of condenser coil This indicates that the refrigerant is circulating If the condenser is not hot this means the leakage of refrigerant In case the condenser radiates heat for only several minutes and then cools down this means that the filter and capillary have been clogged As for the forced air cooling condenser hot air will be blown out of it This means that the system is out of order c Feel the filter s temperature During normal operation of refrigerating system the temperature on the filter s surface should be a little higher than the ambient temperature if you touch it with your hand you will have a sense of slight heat If dew condensation appears due to the fact that its temperature is obviously lower than the ambient temperature this means that most meshes of its screen has been clogged resulting in an obstructed flowing of refrigerant
5. hinge after reversal of the door hinge Support the door from the bottom e Remove the six screws that affix the hinges and two spacers to the cabinet frame Place the door flat on a padded surface to prevent scratching Remove the six hinge screws that affix the hinges to the Retro door Remove the blanking plugs from the opposite side and use to plug the holes exposed by the removal of the hinge Screw the hinges onto the opposite side of the door Pick the door up and carefully align with the cabinet holes Screw the remaining six screws into both hinges and the two spacers into the cabinet to secure the door Changing the LED light bulb BEFORE REMOVING THE LIGHT BULB YOU MUST UNPLUG THE UNIT FAILURE TO DO SO MAY RESULT IN ELECTRICAL SHOCK OR PERSONAL INJURY Remove the light bulb cover 1 by gently pulling the bottom edge of the light bulb cover e Unscrew the bulb 2 Fit a 1w E14 LED bulb that is the same shape and size IMPORTANT replace the light cover to its original position ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Defrosting The surface of the evaporator ices up when the Refrigerator is working This is an entirely normal part of operation If the frost layer is more than 3mm 1 8 thick the Refrigerator must be defrosted and cleaned to avoid unnecessary energy consumption and inefficient operation Remove all items inside and unplug the Refrigerator
6. it has not been purged out totally when evacuating the system the other is that there are leak points at the low pressure end of the refrigerating system Leak points appear mostly in those low temperature parts or assemblies because the evaporation temperature is lower for such low temperature devices especially at the low pressure end it is easier for the air to go into the system Once it has been ascertained that air does exist in the system open the tubing re evacuate it and then charge it with refrigerant 2 Stoppage due to electric fault a Thermostat is out of control ANALYSIS If the thermostat does not work correctly or its temperature sensor has not been installed properly frequent stoppage is also likely to occur L 4 Z Wi HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL REMEDY Try to adjust the temperature sensor s position until the compressor can be started and stopped normally If this cannot be achieved and the stoppage still occurs repeatedly it is most likely that the mechanical parts or contacts are out of order Disassemble the thermostat check thoroughly and repair it b Overload of electric motor ANALYSIS Too many things may have been put into the refrigerator and hence the thermal load exceeds its refrigerating capacity Alternatively if the power supply voltage drops considerably the current flowing through the motor will increase drastically making the thermal protector
7. no refrigerating can be achieved METHODS OF JUDGMENT It is quite difficult to differentiate this problem from others because they often have similar symptoms First listen attentively for some abnormal sound coming from the compressor sometimes the broken pieces of valve block may strike against the cylinder and feel the compressor casing with your hand to ascertain ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR whether it is too hot Secondly measure the pressures at the high and low pressure ports of the compressor with pressure gauges if the gas suction valve block is broken the suction pressure gauge pointer will swing violently and the suction pressure is very high If the gas discharge valve block is broken the discharge pressure gauge pointer will swing drastically and the discharge pressure is very high In both cases stop the compressor at once and if possible open the cylinder cover and check the valve block Repair it or replace it with a new one Sudden stopping of compressor during Its running The cause of the sudden stop of a compressor during its running is mostly that the gas suction pressure and or discharge pressure exceed their respective prescribed ranges This will make a pressure operated protective relay shut off the power to the compressor and stop it In the following we discuss the main reasons for causing excessively high gas discharge pressure and low suction pressure 1 Stoppage due to excess
8. thus causing a drop in temperature due to throttling d Feel the temperature of exhaust gas from the refrigerating system The exhaust gas should be very hot and this is the normal working state For refrigerators with an enclosed type of compressor refrigerating system no frost or dew will from on the gas suction tube otherwise there is something wrong in the system note that frosting and dew condensation may appear for a very short time period when just starting the unit this is a normal phenomenon Because a refrigerator is a combination of several components they are related and have influence on each other In case an abnormal phenomenon has been found through the above checks you need not make a hasty conclusion based on only one abnormal phenomenon It is advisable to find out two or more abnormal phenomenon or conduct comprehensive troubleshooting with the aid of instruments or other ways because several kinds of fault may share a common abnormal phenomenon and two or more abnormal phenomena may occur simultaneously due to a certain issue With this method you can reject suspicious faults and arrive at a correct judgment ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Maintenance Service amp Troubleshooting 7 Analysis of problems and their solutions Poor refrigerating effect The so called poor refrigerating effect refers to the fact that the refrigerator can operate and refrigerator normally but the temperatu
9. After defrosting clean the Refrigerator see instructions below and allow it to dry Reconnect to the mains supply and follow the directions To Operate Your Husky Retro Refrigerator on page 5 Cleaning The exterior may be cleaned using a microfibre cloth or similar DO NOT use abrasive products on the exterior of the unit as this could damage the painted finish To ensure efficient operation the back and bottom of the chiller should be cleaned thoroughly Note do not use abrasive cleaners e Unplug your Husky Refrigerator Wipe the interior with warm water and neutral detergent Dry all surfaces thoroughly Use mild soapy water to clean the door seal When not in use for long periods e Unplug your Husky Refrigerator Clean and dry the inside of the Refrigerator Leave the door slightly open to allow it to dry completely A chiller which is unused without being cleaned may start to smell musty or develop mildew L 4 Z Wi HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL Maintenance Service amp Troubleshooting 1 No cooling No cooling Compressor starts and runs normally after switching off for five minutes The compressor runs normally but the condenser is very hot Check if filter is blocked by ice or dirt Change filter and try again Check and repair referring to flow diagram 4 The compressor doesn t work Refrigerant leak Check repair and charge t
10. Husky Retro Undercounter Refrigerator ENGLISH Engineer s Service Manual HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Contents SPECIGI ONS euere 5 Safety Precaution Susse iesenii re 6 7 vi FOReton Scheller ee een 8 rc Z Lu Systemi FIOW alla 8 Circuit Diagra M reelle nenne 8 Gerieral INStrUCtONS ae een 9 11 Maintenance Service amp Troubleshooting eneseesseessenssennsenseensennssunsensennnnnnenn 12 15 Le NO COOLING see ken 12 2 Ihe compressor doesn t Stop een 13 3 Cooling capacity is insufficient ssessessessesssssssssssssssssessessessossescosesseeseeeeeseeeeene 14 4 The compressor doesn t work aussen 15 5 Normal phenomena no service SSUe ssssssssssssssssssssssssseesessesseetsstesteereeeeseeee 16 6 Common problems with refrigerators and their remedies 17 7 Analysis of problems and their solutions ssssssssesssssssssessesssssssssssssssssssssesssses 19 Exploded Diagr ANeeree een 30 PES EST einen 31 HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR CAPACITY Specifications Standard Packaging Dimensions HxWxD mm Gross Total Litres 865x580x595 Nett Total Litres Weight Nett Gross Standard Packaging Kgs PERFORMANCE 31 34 Climate Class REFRIGERATOR COMPARTMENT FEATURES EC Energy rating A Power
11. METHODS OF JUDGMENT Measure the high and low pressures with pressure gauges to see whether they are normal If an abnormal sound comes from the compressor or the temperature of its causing is too high cut the discharge port open and operate the compressor Feel if there is pressure at the discharge port with your finger for a normal compressor its discharge port is difficult to be blocked with your finger if you just apply a little pressure 5 TOO THICK A FROST LAYER IS FORMED ON EVAPORATOR ANALYSIS If a direct cooling refrigerator is to be used for a prolonged period of time be sure to defrost its evaporator regularly If you fail to do so the frost layer on the evaporator tubing will become thicker and thicker Heat conduction will be severely affected if the whole tubing is wrapped with an ice layer and hence the temperature in the refrigerator cannot drop down to the prescribed range REMEDY Turn the refrigerator off and make preparations for defrosting Open the refrigerator door to let air in or use a fan to speed up the flow of air to shorten the time needed for defrosting Never attempt to speed up defrosting by chipping at the ice with sharp tools this may cause damage to the evaporator tubing or cause personal injury 6 REFRIGERATING OIL LEFT IN EVAPORATOR TUBING ANALYSIS During a normal refrigerating cycle a little refrigerating oil may remain in the evaporator tubing After a prolonged life if there is considerable r
12. cause the start contacts cannot be released normally A whistling sound is caused by the high pressure gas flowing out of a crack in the pressure tube inside the compressor Clucks are the sound of striking when the suspended spring inside the compressor has broken During normal operation of compressor a slight and uniform hum sound due to undulation of electric current can be heard generally This is a normal phenomenon However if it sounds like tong tong i e an impact sound inside the compressor this means that a large quantity of wet vapour of refrigerant or refrigerating oil L u Z m HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL has come into the compressor cylinder If it sounds like dang dang i e a striking sound of metal parts inside the compressor this means that some moving parts have loosened take care to differentiate this sound from those formed during starting or stopping of the compressor b Listen to the sound caused by the flowing of gas in the evaporator Open the refrigerator door while the compressor is in operation and listen carefully to the sound of the gas flow inside the evaporator If it sounds like gentle whistling accompanied by a sound similar to flowing water this is the sound produced by the normal circulation of refrigerant within the evaporator If only the gas flowing sound can be heard and there is no flowing water sound this indicates that the refrigerant has
13. d or power lost you must wait 3 to 5 minutes before restarting If you attempt to restart the Refrigerator before this delay the Refrigerator will not start HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL Thermostat settings Thermostat 0 position indicates the Refrigerator is turned off although power is still being supplied By turning the thermostat dial clockwise the Refrigerator will turn on automati cally The settings 1 MIN 7 MAX regulate the interior temperature of the Refrigerator Setting 0 Off not operating Setting 1 or MIN lowest setting warmest internal temperature Setting 7 or MAX highest setting coldest internal temperature Adjust the internal temperature as required according to the amount of product and the ambient temperature Guide for the thermostat settings are as follows Winter Setting 1 2 Spring and Autumn Setting 2 4 Summer Setting 4 6 The internal temperature varies in different parts of the Refrigerator The back of the Refrigerator is coldest Reversing the door The door can be opened from left to right and vice versa Should you wish to ea change the opening direction please follow these instructions Note all parts removed should be kept safely You will require these for the reinstallation of the door amp Ns gt Fig 1 Position of components prior Fig 2 Position of components to reversal of the door
14. e 4 16 SC13R04004 Door hinge 2 17 SC13R09008 Trim front piece 3 18 SC13R04006 Door hinge washer 1 2 19 SC13RO4A06 Door hinge washer 2 2 20 SC13R09006 Bottom glass shelf 1 21 SC13R04007 Door hinge cover 12 22 C390F05037 Feet 2 23 SC13R09007 Wine rack 1 24 SC13R09009 Salad drawer 1 25 SC13005029 Dryer filter 1 26 SC13005025 Compressor drip tray 1 EIER in en a 27 SC13A05018 Compressor component 1 SC13003001 EHSE 1 SC13R0O9B08 KREREFL SC13005029 THES SC13006001 BES 1 SC13R09005 HERRE 5C13005025 ESNLERE 28 C800005020 Compressor fix clip 2 SC13R06002 HK 1 SC1SROQAOS 22 AHR sc sa0s0 s EEY EE 29 SC13005017 Compressor installation plate 1 SC13003002 TE 1 SC13R04004 NRER c800005020 Fiz 30 SC13R06010 Controller component 1 SC130050065 ASHER 2 SC13R09008 KBEREIF amp SC13005017 FES OLE KR 5C 13006004 a 1 SC13R04006 HRK SC13R06010 BESSa 31 5C13006006 Power cable 1 SC13003003 werd 1 SC13RO4A06 Rk SC13006006 ee 32 SC13R04009 Retainer 3 AE neu 33 SC13R04003 Gasket 1 SC13005010 BELEE 1 SC13R04007 SC13R04003 sc 3005006 ESAK 2 C390F05037 SC13ROA000 34 SC13R04000 Door 1 SC13005001 RRS 1 SC13R09007 SC13R04008 35 SC13R04008 HUSKY logo 1 SC13R00000 REEE 1 SC13R09009 HUSK Y Husky Retail Ltd Station Road Lutterworth LE17 4AP U K Tel 44 0 1455 555397 Fax 44 0 1455 555376 Visit our web site www husky retail com RETRO 0414
15. ed by dirt tapping the suspected clogged point generally in the capillary or the connection joint of the filter may cause the refrigerant to flow partially resulting in some corresponding change whereas if you heat it with a hot towel no reaction will happen and no flowing sound can be heard moreover there will be no periodic change After rejecting the possibility of clogging by ice it may generally be considered as clogging due to dirt REMEDY Dismantle the system remove the dry filter from it purge the tubing with nitrogen install a new filter then evacuate it and finally charge it with refrigerant Clogging in filter Total clogging of a filter is rare This fault is mostly caused by a paste like matter formed from the substances filled into the system or other dust after the refrigerator has been used for a longer time or by the dirt accumulated gradually inside the filter Sometimes tapping the filter may cause a small passage that allows limited flowing By touching it with your hand you will feel that it is cooler compared with its temperature in the normal state REMEDY The same as described in the capillary clogging with dirt 3 PROBLEMS WITH COMPRESSOR Breakage of gas suction and discharge valve blocks ANALYSIS The compressor works by opening and closing a gas suction valve and discharge valve to suck and discharge the refrigerant If the valve block is broken the refrigerant can not be discharged and hence
16. efrigerating oil left in the evaporator the heat conduction effect will be severely affected thus causing a poor refrigerating effect REMEDY It may be difficult to determine whether this problem is caused by the refrigerating oil left in the evaporator tubing because this kind of phenomenon amongst other several faults tend to be confused Generally speaking you can make a judgment based on the frost formed on the evaporator If the frost does not cover the evaporator and it is loosely formed you can make a judgment that the deterioration of refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator tubing if no other fault has been found To clear refrigerating oil left in the evaporator dismantle the evaporator purge it thoroughly and then dry it If it is difficult to dismantle charge refrigerant from the evaporator inlet to wash it several times then purge and dry it with nitrogen ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR 6 FLOWING OBSTRUCTED IN REFRIGERATING SYSTEM ANALYSIS Because the refrigerating system was originally not purged thoroughly some of the filter screen meshes have been clogged by dirt accumulated in the filter after use thus resulting in a decrease in flow rate and hence a poorer refrigerating effect The abnormal phenomena caused by this kind of slight clogging in the system are as follows the gas discharge pressure is lower the temperature of discharged gas drops
17. escape Replace the dry filter recharge refrigerant after evacuating and then seal the charging port L a Z m HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL 3 THERE IS AIR LEFT IN THE REFRIGERATING SYSTEM ANALYSIS Residual air in the refrigerating system will reduce its refrigerating efficiency The main phenomena are the increase in its gas suction and exhaust pressures note however that the gas exhaust pressure will not exceed its rated value and an obvious increase in temperature in the segment from the compressor outlet to the condenser inlet Because there is air in the system both the gas exhaust pressure and temperature will rise moreover the gas flowing sound is intermittent and obviously louder REMEDY Shut the unit down wait several minutes then open the tubing evacuate it and recharge the system with refrigerant 4 LOW EFFICIENCY OF COMPRESSOR ANALYSIS Low efficiency of a refrigerating compressor refers to the actual reduction of gas discharge capacity and hence the corresponding reduction of refrigerating capacity under the condition that the refrigerant in the system is unchanged This phenomenon occurs mostly when the compressor has been used for quite a long time its moving parts will have worn to a considerable degree fit clearance between various parts have increased and sealing property of its gas valve has deteriorated resulting in an decrease in its actual gas discharge capacity
18. essor of a refrigerator stops working a rumbling sound can be heard from inside its evaporator This sound is caused by the flowing of refrigerant in the evaporator tubing Because the pressure difference is still greater after the compressor has stopped the refrigerant will flow for a certain time therefore this sound is a normal phenomenon 2 A clicking 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 will be more noticeable at night 3 The compressor consists of an electric motor and a compressing apparatus During its normal operation 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 may become very hot particularly in Summer when the ambient temperature is higher All these are normal phenomena 4 For the direct cooling refrigerator a kind of irregular crack sound can be often heard when the compressor is running for a certa
19. frigerator works well and sometimes it does not In order to determine whether it is clogged L 4 Z Wi HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL with ice heat the suspect points with hot water to melt the ice If after a while the sound of an abrupt gush of flowing gas is heard and gas suction pressure rises it can be confirmed that the problem is caused by ice clogging REMEDY If there is too much moisture in the refrigerating system it is advisable to release the refrigerant purge the tubing with nitrogen and then charge the system with the filtered refrigerant However the commonly adopted method is to connect a filter with moisture absorbers such as silica gel anhydrous calcium chloride to the refrigerating system to filter out the moisture from the system Then replace the filter evacuate it again and finally charge the system with refrigerant b Clogged with dirt in capillary The capillary inlet is a place where coarse grained dirt or refrigerant oil in the system will tend to settle and clog it In case considerable dirt accumulates there and the whole filter screen may be totally blocked making the refrigerant unable to go through Clogging with dirt exhibits the same symptoms as that with ice namely higher gas suction pressure lower temperature of discharged gas and no sound of flowing gas may be heard from the evaporator The difference between the two is as follows if the clogging is caus
20. he refrigerant again When charging refrigerant care must be taken to charge with the correct amount ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Maintenance Service amp Troubleshooting 2 The compressor doesn t stop The compressor doesn t stop Is the refrigerator cooling Is the cooling capacity sufficient 1 The thermostat was set at the coldest position 2 The ambient temperature is very high or the refrigerator is near to a heat source 3 The door was opened too many times or there is more fresh food inside Check and repair the control panel Check and repair referring to flow diagram 1 No cooling Check and repair referring to flow diagram 3 The cooling capacity is insufficient Adjust and instruct the consumer how to use ENGLISH HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL Maintenance Service amp Troubleshooting 3 The cooling capacity is insufficient The cooling capacity is insufficient Is the ambient temperature lower than 16 C Check that the thermostat is correct Does the refrigerant leak slowly Ze eae Adjust and instruct the consumer how to use ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Maintenance Service amp Troubleshooting 4 The compressor doesn t work The compressor doesn t work Is the interior light on when the door is opened Check the power source and power
21. hey are closed If they are still not closed dismantle the temperature sensing disc and then immerse it into warm water to see whether the contacts actuate if not it can be preliminarily determined that temperature sensing agent has leaked out and it must be replaced with a new thermostat L 4 Z Wi 4 MOTOR PROBLEMS AND OTHER ELECTRICAL FAULTS Sudden stoppage due to other causes Motor windings have burned out or short circuited between turns Normal starting and stopping of the compressor is generally controlled by a thermostat When the temperature in the refrigerator reaches its desired value the thermostat will stop the compressor automatically Never take this normal operation as a problem care should be taken to differentiate it from other real problems in servicing Compressor won t start In case the compressor cannot be started you must find out the origins of this fault through checking step by step There may be many causes including electrical and mechanical 1 Inspect the power supply to see whether it is connected to the compressor circuit ANALYSIS In case the compressor cannot be started this will generally exhibit in the power supply circuit For instance power failure poor contact of switch and blown fuse Make a comprehensive analysis of these phenomena discover its real cause and take correct measures to remove this problem REMEDY a Check the input power circuit to see where there is v
22. in period of time or has just stopped This sound is caused by the stress relief due to expansion and contraction when temperature changes and will not affect the normal application of refrigerator ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Maintenance Service amp Troubleshooting 6 Common problems with refrigerators and their remedies Causes of problems occurring in refrigerators are closely related to the quality of components and workmanship in manufacture also whether refrigerators are properly used and maintained The parameters generally used to express the working conditions of a refrigerator include the temperature inside the refrigerator operation rate electric power consumption noise level etc If any one of these parameters is beyond its permissible range this indicates that there is a fault in the refrigerator During the whole service life of a refrigerator the probability of problems occurring within that time is called its failure rate Making a comparison between the control circuit system of a refrigerator and its refrigerating system we can find that the failure rate of the former is higher and that of the thermostat is the highest In troubleshooting the first thing you must do is to determine where the problem comes from the control system or the refrigerating system Generally there is no fault indicating instrument mounted on the domestic refrigerator The location and nature of problems should be deter
23. ing the plug Do not move the appliance by pressing the power cable or tread on it When moving the appliance from wall be careful not to roll or damage power cable In case of damaged power cable If the power cable or plug was damaged it is prohibited to continue using it In this case it must be replaced by technician or authorised service personnel Do not put bottled beer or beverages in the freezer compartment to prevent risk of cracking This appliance uses 220 240V 50Hz AC for its power supply Failure in operation and damage to the control panel thermostat or the compressor will occur if voltage is outside the range 187 242V unless a regulator with a capacity of 750W or higher is installed It is required to use separate special outlet with secure grounding The power cable of this appliance is fitted with three core grounding plug complying with three core grounding outlet In no case should the third plug pin grounding of the power cable be cut or removed When there is leakage of inflammable gas Never try to pull out or insert any power plug for any electrical appliance such as refrigerator Electricity plug must be cut off for below following situations Pull out power plug prior to cleaning or repairing When replacing damaged lamp it is required to pull out power plug to prevent electrical shock It is absolutely prohibited to put hazardous flammable or explosive articles strong corrosive acid al
24. ively high gas discharge pressure a Too much refrigerant charged into the system ANALYSIS Phenomena such as loose frost and poor refrigerating effect may occur if excessive refrigerant has been charged into the system Superfluous refrigerant will occupy a certain space of the evaporator thus reducing its heat dissipating area and the phenomenon of liquid striking may occur too Meanwhile dew or frost condensation may occur on the gas return tube and the gas discharge pressure will obviously rise When it reaches the threshold value the protective relay will actuate and shut off the power supply to the compressor REMEDY Open the tubing re evacuate and then charge the system with a proper quantity of refrigerant b Air left in the system ANALYSIS The residual air in the system will circulate together with the refrigerant in the system The major symptoms caused by this residual air is higher gas discharge pressure higher discharged gas temperature the gas discharge tubing is very 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 and bring to a stoppage REMEDY Check how the air has been left in the refrigerating system Generally there are two possibilities one is that the air has been sucked into the system when repairing due to carelessness or
25. kali etc inside the appliance Safety Precautions are continued on the following page HUSKY RETRO REFRIGERATOR Safety Precautions continued Do not keep medicine vaccine or chemical agents in the appliance This refrigerator is for household use and cannot store items with strict requirement for temperature Do not store or use gasoline or other flammable article in the vicinity of the refrigerator to avoid fire Do not place any electrical plugs regulators or microwaves on top of the refrigerator Do not use electric appliances except those allowed by the manufacturer inside the refrigerator Do not play by hanging on its door to prevent tilting the door or toppling the refrigerator which may result in personal injury Do not place heavy or unstable articles or water containers on top of the refrigerator When the refrigerator has started running take care not to touch the cold surface of the freezer compartment with hand especially with wet hand Otherwise your skin may become stuck on the cold surface Do not spray water onto the refrigerator or place it in wet area where water may be easily splashed to avoid influencing the electric insulation performance of the appliance It is strictly prohibited to privately dismantle or change the appliance component Repairs may only be carried out by professional personnel In case of unstable power supply or during cleaning it is required to pull out the power p
26. lug and to wait at least five minutes for switching on it again to prevent damaging its compressor by continuous starting If the door or door gasket of the appliance is to be removed prevent children from playing inside to avoid risk of accident ENGLISH HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Function Schedule General Instructions E ffici p bo A Before using for the first time e Low noise operation e Thick insulation for energy efficiency e For good circulation the vent at the back of the Refrigerator must not be blocked Keep a minimum of 100mm of clear space between the back of the Refrigerator and the wall and 50mm between the sides and the wall Your Husky Retro Refrigerator should be placed on flat and firm surface for quieter operation e System Flow Diagram If the Refrigerator is to be placed on carpet support it with a wooden board underneath Be aware that placing the Refrigerator on carpet may mean that heat from the compressor may cause the carpet to fade L 4 Z m The Husky Retro Refrigerator is a direct cooling single system larder When the refrigerator is powered on the refrigerant flows in the sequence 1 gt 2 gt gt gt G gt Do not expose the Refrigerator to direct sunlight or a heat source such as ovens radiators heaters etc Do not under any circumstances place heated food or beverages in y
27. mined according to their respective features therefore experience in servicing is very important in troubleshooting Experienced service technicians can correctly locate them and take reasonable remedial actions based on comprehensive analysis of fault characteristics as well as operating conditions for various kinds of refrigerators Three essentials to check 1 LOOK a Check the refrigerating system pipework for cracks and check welding points for leaks if leakage occurs a definite oil stain will be seen b Check the suction and exhaust pressure values high pressure and low pressure of compressor to see whether they are normal c Check the conditions of frost on the evaporator It is normal for a small amount of frost to form on it d Pay attention to the speed of temperature pull down inside the freezer compartment It is abnormal if the speed of temperature pull down is obviously slower than normal e Check the environment to see whether if the location is a suitable placement for a refrigerator f Check the refrigerator door seal case surface and heat insulation g Look at the main control board to ascertain if its indication states are normal 2 LISTEN a Listen to the sounds produced when the compressor is running A humming sound from a fully enclosed aggregate unit is caused by overload indicating that the motor cannot be started normally A clattering sound may be heard from inside the start relay which is produced be
28. n Check the 3 prong outlet to see whether the live wire and the negative wire are inversely connected this makes the ground protection lead out from the power cord plug being connected to the live wire Another possibility is that the live wire and negative wires of the outdoor power supply circuit have been inversely connected accordingly this makes the negative wire become a live wire 6 STRONG VIBRATION AND LOADER NOISE 1 Refrigerator placed improperly a Uneven ground Uneven ground will cause the refrigerator to become unsteady causing stronger vibration and noise during its operation L 4 Z Wi HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL b Leveling screws not properly adjusted If the leveling screws on refrigerator legs have not been adjusted properly vibration and noise will still occur even if the refrigerator has been placed on a level ground 2 Abnormal noise from compressor Three suspended spring inside the compressor case may be out of balance and strike against the case Moreover the wear of compressor parts may cause noise sometimes 3 Resonance of pipework and loosening of parts Improper and compact laying of pipes or the loosening of parts may cause vibration and noise 4 Inspection method To find the sources of noise press the vibration spot with your hand while the refrigerator is in operation and listen attentively whether the vibration becomes weak or stops If the refrigerator ha
29. oltage to the power supply namely the circuit which is connected to the knife switch This can be determined with an avometer or a test pencil If a blown fuse is found ascertain and remove its cause then replace it with a new one of the same specifications b Check the compressor accessories including its thermal protector and relay If the thermal protector is damaged the compressor cannot be powered on If the relay is out of order the motor will not run and a humming sound can be heard from it after the compressor is turned on if this is the case shut it down immediately otherwise the motor windings will be burned out in case this condition lasts longer 2 Check the relay contacts and plugs to see if they are in good order and work reliably Poor contact may cause j ANALYSIS When motor windings have burned out or short circuited between turns the fuse will be blow repeatedly and the blowout occurs particularly at the instant when you close the knife switch REMEDY Check the terminals and the outer casing to see whether they are short circuited and measure the resistance of each phase with an ohmmeter If short circuit occurs or the resistance of a certain phase is low this means that short circuit does exist in the windings and or between turns and insulation layers have been burned or deteriorated A multimeter can also be used in this inspection If the insulation resistance is lower than 2MQ this means that the insulati
30. on layer is already broken down If the motor has been burned repair it or replace it with a new one Fault of control relay ANALYSIS Overheating burnout or wear of control relay contacts may occur generally All these will cause poor electrical contact REMEDY Dismantle it to repair or replace it with a new one Poor electric contactor in thermostat ANALYSIS Burnout of contactor and leakage of temperature sensing agent may occur generally HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL REMEDY Replace the old with a new one Check the terminals for loose connection and electric circuits for other abnormal phenomena 5 MECHANICAL FAULTS OF COMPRESSOR Seizing of shaft This phenomenon is caused mostly by poor lubrication such as insufficient quantity of lubricant clogging in the lubricant oil line or intermittent lubricant oil supply Dirt and other impurities in the lubricant oil will increase its viscosity and cause the shaft to be seized Copper plating may also result in seizing of shaft Seizing of piston This is caused by too small fit clearance between the piston and cylinder or expansion due to heat Judgment of seizing shaft and piston After the refrigerator has been powered on the compressor will not start and run but a slight humming sound can be heard and several seconds later a thermal protective relay will actuate and make the contacts open This process will occur repeatedly but the compres
31. our Husky Refrigerator Do not open the door more often than necessary to lessen the escape of cold air For better air circulation do not overfill the Refrigerator Adjust the thermostat according to the amount of product and the ambient temperature ADJUSTABLE LIGHT SWITCH OPERATED METAL WIRE INTERIORLAMP THERMOSTAT BY DOOR OPENING RETAINERS SHELF HANGING WINE RACK ADJUSTABLE SHELVES D Compressor Condenser Q Dry Filter FLUSH BACK DESIGN 4 Capillary Tube SALAD CRISPER 5 Evaporator DRAWER ADJUSTABLE HINGE FEET e e e Circuit Diagram CONDENSATION COMPRESSOR DRIP TRAY The Husky Retro Refrigerator is a direct cooling single system larder A mechanical type of all the control is generally To operate adopted The thermostat directly controls the start and stop of compressor and hence the refrigerator temperature P Before switching your Husky Retro Refrigerator on we recommend you allow it to stand for 12 hours 1 Clean the inner compartment 2 Plug in your Husky Refrigerator 3 The first time you turn the Refrigerator on check the thermostat to ensure it is set to 4 and leave at this position for 20 minutes After this time adjust the temperature control setting as per the guide for setting the thermostat below 4 To turn the Refrigerator off turn the thermostat to the 0 position and disconnect the plug from the mains supply NOTE If the Refrigerator is unplugge
32. re in the refrigerator cannot drop to the prescribed value under the stipulated working conditions Given that there may be many causes for this phenomenon we are going to discuss and analyse it by the following aspects 1 LEAKAGE OF REFRIGERANT ANALYSIS The leakage of refrigerant in the system will result in an insufficient refrigerating capacity The resulting phenomena are its lower gas suction pressure and exhaust pressure as well as higher exhaust gas temperature The exhaust tube feels rather hot a continuous gas flowing sound that s louder than usual may be heard at the outlet of the capillary and no frost or a smaller quantity of loose frost appears on the evaporator After shut down the balance pressure in the system is usually lower than the saturation pressure corresponding to the same ambient temperature REMEDY In case there is leakage of refrigerant from the system do not hurry to recharge it with refrigerant manage to find out leak points immediately and make a note of from where it leaks i e welding points and parts After having them repaired recharge refrigerant There are so many joints and sealed surfaces in a refrigerator many potential leak points do exist in the system In troubleshooting pay attention to those parts that are liable to leak Check main connection points for oil seepage and tubing for cracks If there is no severe leak point charge the system with nitrogen and detect leak points with the commonl
33. rent becomes low its gas suction pressure is high and discharge pressure is lower the gas discharge tube feels cold no sound of gas eruption from the liquid in the evaporator can be heard and no gas escapes from the process tube if you cut it open after shutdown REMEDY Check the whole machine particularly those locations which are liable to leak After leak points have been found repair them or replace them with new parts according to specific circumstances Evacuate the system and finally charge refrigerant 2 REFRIGERATING SYSTEM HAS BEEN CLOGGED a Clogged with Ice ANALYSIS If the dryness treatment for the major parts in the refrigerating system has been performed improperly the effect of air purging for the whole system is not good or the water content in the refrigerant is out of standard all these will cause the expansion valve to become clogged with ice The symptoms for this fault are as follows the refrigerator sometimes refrigerates and sometimes does not the refrigerator compartment works normally at the beginning but after working for a certain period of time frosting begins at the clogged position evaporation temperature reaches below 0 C water will accumulate at the narrow part of the capillary and gradually clog it then frost begins to melt at the evaporator no gas flowing sound can be heard and the gas suction pressure assumes a state of vacuum Note that these phenomena will appear intermittently sometimes the re
34. s not been placed levelly put a spirit level on its top and adjust the leveling screws on its legs In case noise occurs from the compressor strike different locations on the side surface of its case using a rubber hammer or hand hammer with a wood block in between to avoid damage to determine whether the suspended springs are out of balance or seized ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR lt 4 UO Z Wi HUSKY RETRO REFRIGERATOR ENGINEER S SERVICE MANUAL ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR Parts List Only to be used in conjunction with the Exploded Diagram on page 30 Exploded Diagram Only to be used in conjunction with the Parts List on page 31 Ref on Diagram Part Number Description Quantity gg 7 1 SC13003001 Controller socket 1 j 2 SC13006001 Controller 1 z 3 SC13R06002 Light switch 1 4 SC13003002 Socket 1 i o 5 SC13005005 Evaporator fix plate 1 2 E 6 SC13006004 Bulb 1 3 5 7 SC13003003 Controller knob 1 II 8 SC13003004 Lampshade 1 2 9 SC13005010 Sensor sleeve 1 10 SC13005006 Evaporator f x plate 2 2 11 SC13005001 Evaporator 1 12 SC13R00000 Cabinet 1 13 SC13RO9B08 Trim back piece 2 14 SC13R09005 Upper glass shelf 2 15 SC13RO9A08 Trim left and right piec
35. sor ANALYSIS Leakage of refrigerant and clogging in a refrigerating system will directly affect its refrigerating capacity Due to the reduction in its refrigerating capacity the refrigerator temperature cannot reach its rated value and the thermostat won t work thus the compressor runs continuously When the evaporation temperature in the system is too high the temperature sensing agent in the temperature sensor is also hotter Therefore the thermostat is unable to cut off the power supply to the compressor and stop it REMEDY If it has been found that the refrigerant in the system is insufficient in quantity recharge it with refrigerant ENGINEER S SERVICE MANUAL HUSKY RETRO REFRIGERATOR In case clogging occurs disassemble the part where it is blocked If the evaporation temperature is too high resolve this problem with an appropriate quantity of refrigerant 4 No stoppage of compressor due to damaged heat insulation layer inside case body and or door seal ANALYSIS When the heat insulation layer inside the case body deteriorates or the door seal is not secure in the door frame the temperature in the refrigerator will rise and makes the compressor running continuously REMEDY Check the heat insulation layer for its damaged parts and repair it to improve its heat insulation property If the door is deformed or the door seal is not tightly sealed against the case body repair them 5 Too much food is placed in the refrigera
36. sor cannot be started Compressor won t stop Sometimes the compressor will run continuously for several hours or run without end If the food placed in the refrigerator is not too much there may be the following two situations i If the refrigerator is at a very low temperature the control system is probably out of order ii The control system works normally and there are faults in the refrigerating system or other parts 1 Temperature is set improperly a The temperature control knob is set to the coldest position This position is to be used for fast freezing or continuous running it s temperature for power off is too low therefore the compressor won t stop and the temperature in the refrigerator becomes lower and lower b Inspection method check the temperature control knob to see whether it is set in the position coldest 2 Thermostat is malfunctioning and makes the compressor running continuously ANALYSIS When the thermostat doesn t work normally it will make the compressor run continuously and hence very low temperature will be achieved in the refrigerator The fault is generally due to the fact that the contacts of the thermostat cannot be released REMEDY Dismantle the thermostat and make a through check If it is totally out of order replace it with a new one 3 Evaporation temperature is too high in refrigerating system resulting in lower refrigerating capacity and hence continuous running of compres
37. the position clogged has a temperature lower than that in its normal condition and for a severe clogging even dew condensation as frost may appear REMEDY Purge the tubing replace the dry filter with a new one or clear it thoroughly recharge the system with refrigerant and seal the charging port No refrigerating The phenomenon whereby the compressor runs normally but no or little frost appears on the evaporator and the refrigerator temperature does not pull down is called no refrigerating There may be many causes for this and it is relatively complicated to determine In servicing give special attention to finding direct causes for this phenomenon Three main potential causes for this fault are analysed below 1 ALL REFRIGERANT IN THE SYSTEM HAS LEAKED OUT ANALYSIS Leak points in the refrigerating system have not been repaired timely thus resulting in the total escape of refrigerant There are two main kinds of leakage i Slow leakage if for example a refrigerator that has out of service for a long time leakage of refrigerant may be develop or in the course of its operation a refrigerator may become gradually not so cold and finally does not refrigerate at all ii Fast leakage if for example all the refrigerant escapes swiftly due to abrupt rupture of system tubing Symptoms of total leakage of refrigerant may include the compressor starte easily if there is no damage to the compressor parts but its operating cur
38. tor or is placed too densely This can result in poor ventilation or poor conditions for temperature sensing and hence the compressor does not stop 6 Too high ambient temperature poorer ventilation and heat dissipation makes the compressor running without stopping 5 ELECTRICAL LEAKAGE OF REFRIGERATOR 1 Slight electric leakage Electric insulation has deteriorated due to being affected with damp thus resulting in slight electric leakage 2 Serious electric leakage Refrigerator case has become live due to faults occurred in some electric devices or the erroneous wiring in installing power cord plug or outlet by the user THIS IS EXTREMELY DANGEROUS 3 Electric leakage test a Slight electric leakage A tingle sense will be experienced if you touch the metal parts of the refrigerator with your hand When you test them with a test pencil its neon lamp will come on In that case the first thing you need to do is to determine whether the grounding is perfect If the grounding is good turn off the refrigerator immediately and check the insulation of electric circuits with an multimeter b Serious electric leakage Never touch the case body of the refrigerator its door handle or other metal parts with your hand Test the refrigerator with a test pencil it will light up intensively Measure the resistance between the power cord plug and the case body with an avometer the reading will be zero 00 in the worst case the fuse will be blow
39. y adopted method repair them evacuate charge the system with refrigerant and then turn on the refrigerator to make a test run 2 TOO MUCH REFRIGERANT CHARGED INTO THE SYSTEM ANALYSIS Either a If the amount of refrigerant charged into the system exceeds its nominal capacity the superfluous refrigerant will necessarily take some space of the evaporator thus reducing its heat dissipation area and hence the refrigerating efficiency of the system The abnormal phenomena caused by this reason are as follows the gas suction and exhaust pressures are generally higher than their respective normal values the temperature of its condenser is higher and the electric current of the compressor rises loose frost forms on the evaporator the refrigerator temperature drops slowly and frost appears on the gas return tube or b If excessive refrigerant has been charged the liquid refrigerant that cannot evaporate in the evaporator will return to the compressor and thus a phenomenon of liquid striking will occur The liquid refrigerant evaporates and effervesces as soon as it flows into the refrigerating oil at the bottom of compressor If the condition is severe foam will fill inside the compressor housing and be sucked by the piston causing damage to the components of compressor REMEDY According to the operating procedures you MUST to turn the machine off wait several minutes then open the refrigerant charging tube to let the refrigerant
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