Service manual
Contents
1. riisense Chest Freezer Service manual MODEL C98CFWI3 amp CISWEW14 FC 13DD4SA1 BD 98 HC E NOTE This is a basic model the shape and specification of Freezer is subject to change HM Contents Toue MOO SE ERE ERE EEE AE ENE EE EE 6 The common default tests method cccccccccccccsccccsscccssseccusscccssecsuseecsssuscessusecssusecessnsessuees 7 Parts Description 6 Power supply code with plug Side cover o Side cover 4 gt E Ke 8 Foot FR 10 gt 4 5 7 10 NOTE This figure is only a sketch Of the Refrigerator and the actual Products may differ from it CIRCUIT DIAGRAM THERMOSTAT BN BN f Bk COMPRESSOR E N MOTOR pe AT GE RD E over LOADER RELAY es pf POWER fl OX DIRECTION LAMP COOLING DIAGRAM X Evaporator T ee Condenser Drier filter Compressor Capillary The guide for Disassembly Common parts of Freezer The instruction of replaceing thermostat The location of thermostat Remove the screws of the Side cover loose the fixing buckle of Thermostat panel with screwdriver Cut off the lace and remove the srcew of the thermostat panel Unplug the connecting wire You can easy to use a screwdriver to take dow2. around the Freezer there enough space around the Freezer for rejection of heat the setting of the thermostat appropriate there too much food or overheating food in it The unit can not stop ruaig Does there open the door frequently Is the door completely closed Does the gasket destroyed or distort Is the thermostat good operation Does the refrgeration leak CON DOP WN FIONN DMD OT FS W DS Is the setting of the thermostat appropriate 2 Is there multi moisture food and too close to the back wall of the Ice up in the Freezer Zi Di Zs Dr 2 Zi 2 2 a De 2 9 De 9 3 2 De 4 4 freezing chamber 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 5 1 Is the Freezer stably placed 5 2 Does the Freezer bump other objects 5 3 Whether the internal accessory of the Freezer 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 Freezer in fact it is normal which is caused both when Freezer start and shut down in addition Abnormal noise i 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 norma
3. cking the location of thermostat knob is directly connected with the Freezer s cooling Observe all parts of the Freezer a Check the cooling speed b Check the outside tube To check the cooling speed of freezing cabinet with electronic thermometers so as to check if the Freezer is able to lock the cooling and in good cooling condition Checking the Freezer s pipeline system mainly exists in checking whether there is leakage for example as the seal of Process tube the suction pipe the exhaust pipe welding and the connection of drying filter are prone to leak we should carefully examine The checking method is to wipe the connection of the tube with a piece of white cloth and see if there s oil if does there s leakage Discriminate default by temperature a To check the default by measuring compressor s temperature b To check the default by measuring dry filter s temperature c To check the default by tube s measuring suction temperature d To check the default by measuring discharge tube s temperature e To check the default by measuring condenser s temperature f To check the default by touching evaporator s frosting When the compressor is in normal operation and it will obviously hot When the dry filter is in normal condition and it will obviously a little hot When the suction tube is in normal condition and and it will obviously cool When the discharge tube is i
4. e The pressure of absorbing becomes The above will appear again and hole of capillary can ice on of liquid flow disappears negative phenomenon 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 abruptly The pressure of absorbing becomes higher B there capillary capillary It is Ice blocking is offal block the Phenomenon of failure If the capillary is blocked by Solution First find out the point of leaking on tube and then sealed it vacuuming it finally recharge with Gas Attention please on that below If you find oil on somewhere it is possible that leakage point is there Solution First stop unit for several minutes and then open charging tube discharge all of Gas Blow the cycle system with gas of nitrogen and then recharge Gas finally sealed the system Solution First stop unit for several minutes and then open charging tube discharge all of Gas Blow the cycle system with gas of something such as offal etc nitrogen Change a new capillary and the sound of liquid flow filter and then recharge Gas finally disappears sealed the system 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 t
5. ea of heat exchange becomes less unit will work not 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 is less ice on evaporator but there is ice on the absorbing tube e when Gas is too much some Gas liquid might back compressor will be damaged by liquid goes into compressor 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 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 check the pressure of system with pressure meter a lower pressure of discharging to see if it is normal b higher surface C cut off the discharging tube to see if temperature of compressor Solutions First find out the point of leaking on tube and then sealed finally i vacuuming it recharge with Gas Attention please on that below If you find oil on somewhere it is possible that leakage point is there Solutions First minutes and then open charging tube Change a new filter stop unit for several discharge all of Gas and then recharge Gas finally sealed the system Solution
6. ge in time D The correct use of spare parts gt Maintenance of the need to replace parts of the same model must be the parts repairing parts listed in the table do not get optional change other models or other brand of spare parts the more don t maintain spare parts avoid p other accidents 5 The correct use of maintenance tools gt Maintenance must use the proper maintenance tools Improper use tools may cause bad contact or fastening rickety and accidents 6 Wire connection gt Reconnecting first must weld or use connected terminals and insulation tape sealing ensure good contacts 7 Insulation testing gt after the maintenance assembly the insulation resistance testing must use a multimeter to confirm insulation resistance up to 1 M Q above can electrify operation 8 Grounding check gt After repair must use a multimeter fortesting grounding resistance confirm for the grounding resistance is less than 0 15 Q namely grounding is good if grounding bad or incomplete should be handled in time ensure complete good reliable grounding 9 Pay attention to the child gt The refrigerator for repair attention shall be paid to prevent children from near lest produce risk 10 Clean After the maintenance the refrigerator is necessary to clean and inform the users
7. here is no change It must be offal blocking 6 Fan motor is broken Replace fan motor Note EE ENE e Before doing these operations above disconnect the main power supply Failure to do so could result in electrical shock or personal injury e Incase of any detailed technical information please check with the technical specifications announcements of Maintenance operation safety In order to you can safely overhaul the operation must comply with the following the matters needing attention 1 Notes gt The refrigerator maintenance should pay attention to the nearby fireworks especially in the use of gas tools for after welding must first will gas flame can other repair refrigerant because of flame the spark and capacitor later produce polsonous gas gt Never in the poor ventilation and airtight room within the welding gt Emission refrigerant be sure to make the room is well ventilated gt Cut off the compressor muffler and exhaust pipe attention shall be paid to the surplus within the cold media and internal pressure 2 Unplugged the attaching plug Yy Will the refrigerator for repair must first pull out the power plug assure maintenance safety 3 Prevent to electric shock gt Usually for repair shall first will cut off power supply If must be energized check circuit should be careful to get an electric shock do not touch charged area Maintenance if discover the wire aging should chan
8. l 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 6 1 Is the food with special smell sealed tight There is a peculiar 6 2 Does it have long time storing food or degenerated food smell in the units 6 3 Whether the internal cabinet needs cleaning the forefront or the 7 1 As fridge Anti condensation tube is placed here and caused the above middle cabinet heats phenomenon which is normal 8 1 As condensation tube is placed here and caused the above phenomenon or the back heat the cabinet surface condensation 9 1 Air humidity is too large WE 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 resolvent 1 Leakage of Gas 2 The quantity of Gas is too much 3 There is air in the liquid cycle system 4 Low efficiency Compressor working of 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 77777 comes from outlet of capillary d there is evaporator no or less ice on the If too much Gas was charged into the cycle system the extra Gas will occupy some space of evaporator so that the ar
9. n Spring tap and Cover Loose the screws Unplug the connecting wire of the PTC Starting relay and Overload protector TROUBLESHOOTING HM Common default tests method Check the problem by observing a Checking the temperature of the using condition is according with the specification or not temperature between 18 43 degrees b Good ventilation with at least enough room for heat dissipation around the Freezer C Whether the voltage range meet the requirement of the nameplate The appropriate space for running unit will be below Freezer back 10MM Freezer two sides 20MM 30MM On normal conditions voltage fluctuation is allowed to be between Freezer top side 10 of rated voltage whilst if it exceeds a lot or sometimes high sometimes low the compressor would be effected and even burned down When voltage is too high the motor coil will be burnt down whilst if it is too low the compressor would be difficult to start and the frequent starting will lead to burning down the motor Check if the Freezer s appearance and internal parts are in good condition a check the gasket b check the door switch c Check the thermostat knob Through switching the Freezer door to see whether the gasket is tight and if there s gap between the cabinet and seal If the lamp is in good condition but it doesn t work when opening the door we should check the door switch Che
10. n normal condition and it will obviously a little warm When the condenser is in normal operation and by testing its temperature we can assure that the temperature from the entrance to the exit is regressive the entrance is hotter than the exit When frosting in normal operation and we touching the evaporator s it shall not easy to erase Discriminate default by running noises a Checeking compressor s noise b Checking flow noise the Freezer the When compressor is running it shall go with rhythmic low frequency sound If there s sound between capillary and evaporator s transition the Freezer works normally tajoj HM The common problem judgement method Is the power cord connecting well Is the power voltage too low Is the thermostat irrational setting Is the ambient temperature too low Freezer can t start Is the circuit on power 6 Is there some default in compressor 7 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 there any heat source around the Freezer there enough space around the Freezer for rejection of heat the setting of the thermostat appropriate there too much food or overheating food in it Weak cooling effects Does there open the door frequently Is the door completely closed Does the gasket destroyed or distort Does the refrgeration leak there any heat source
11. s First minutes and then open charging tube Change a new filter stop unit for several discharge all of Gas and then recharge Gas finally sealed the system Solutions Change a new compressor you can block the gas coming out of the tube when compressor is working 5 There is thick Solutions the Turn off the unit and working open doors for defrosting For defrost Freezer you need to defrost ice on i ice termly evaporator Some time there is something blocked the filter of liquid cycle system so that unit is not cold Phenomenon of failure 6 There is something Solutions that blocked the liquid cycle system Change a new filter a lower pressure of discharging b lower temperature of discharging 2 NO COOL Popular failure reasons are below Reason analysis resolvent 1 Leakage of Gas 2 There is some thing that blocked the liquid cycle system Phenomenon of failure a leaking fast b leaking slowly c no voice of liquid flowing d cut off charging tube no gas goes out A Ice blocking Sometime because unknown reason water comes into liquid cycle the capillary will be blocked by water after unit runs system 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 completely In the moment you find the the evaporator defrosts The nois
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