Service manual
Contents
1. Screw 2 Low Hinge 3 Upper Hinge 4 Adjustable Low Foot Adjustable High Foot 6 Screw Bolt q Plug 8 Decoration Block 9 The block of the top cover Top Cover Plate d Screw nail 1 Remove the screw nails 11 2 Keep the door open raise the end of the top cover push it 10 frontad and take it off from the block 9 of the top cover then move the bottom block 8 3 Remove the two screws blot 6 that connect the upper hinge 5 onthe right side ofthe cabinet top 4 Carefully lift the door and place it on a padded surface to prevent scratching 5 Remove the plug 7 and transfer it to the uncovered hole onthe right side of the unit Be sure to press the button firmly into the hole 6 Remove the two screws 6 that hold the lower hinge 2 on the right side of the unit T Remove the screw type leveling front leg 4 and transfer it to the right side as shown in the adjacent figure 8 Set the door into it s new place making sure the pin enters the bushing atthe lower frame section hole 9 Secure the upper hinge 5 previously removed in step 3 onthe left side of the unit Make sure the pin enters the bushing on the upper frame section hole 10 Loosely secure the lower left hinge 2 and do not tighten the bolts until the door is in the closed position and leveled 11 Insert the plug 7 onthe uncovered holes right side 12 Fix the decoration block 8 in the right of the top cover plate 10 13 Keep the do2. sound of liquid flow disappears The ice on the evaporator defrosts First stop unit for several minutes and then The pressure of absorbing open charging tube discharge all of gas becomes negative Blow the cycle system with gas of nitrogen Higher temperature of discharging Change a new capillary and filter and then tube recharge Gas finally sealed the system The way to check offal blocking If you warm capillary with the way of checking ice blocking there is no change It must be offal blocking 5 Wind door is broken Replace wind door 6 Fan motor is broken Replace fan motor Note 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 poisonous 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 mu
3. e when gas is too much some gas liquid might goes back into compressor compressor will be damaged by liquid The air in system will cause lower efficiency of cooling Phenomenon of failure 3 There is air in the a higher pressure of liquid cycle system 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 4 Low working so that compressor discharge less gas out efficiency of unit does not work strongly Change a new compressor compressor Phenomenon of failure a lower pressure of discharging check the pressure of system with pressure meter to 1 Leakage of Gas First stop unit for several minutes and then open charging tube discharge all of gas Change a new filter and then recharge gas finally sealed the system see if it is normal b higher temperature of compressor surface C cut off the discharging tube to see if you can block the gas coming out of the tube when compressor is working Some time there is something blocked the filter of liquid cycle system so that unit is not cold Phenomenon of failure a lower pressure of discharging b lower temperature of discharging 5 There is something that blocked the liquid cycle system Change a new filter 2 NO COOL Popular failure reasons are below Phenomenon of failure First find out the
4. point of leaking on tube a leaking fast and then sealed it vacuuming it finally b leaking slowly recharge with gas c no voice of liquid flowing Note d cut off charging tube no gas lf you find oil on somewhere it is possible goes out that leakage point is there A Ice blocking Sometime because unknown reason water comes into liquid cycle system the capillary will be blocked by water after unit runs for period of time Phenomenon of failure The unit works well in the inception after period of time the ice appears in the capillary and becomes more and more till blocks the hole of capillary First stop unit for several minutes and then 2 There is some thing completely In the moment you open charging tube discharge all of gas that blocked the liquid can find the ice on the evaporator Blow the cycle system with gas of nitrogen cycle system defrosts The noise of liquid flow and then recharge Gas finally sealed the disappears The pressure of system absorbing becomes negative The phenomenon above will appear again and again The way to check ice blocking Warm the capillary with a hot towel after a while the ice in the capillary melt you can hear a sound of gas flow comes from the capillary abruptly The pressure of absorbing becomes higher It is Ice blocking 1 Leakage of gas B there is offal block the capillary Phenomenon of failure lf the capillary is blocked by something such as offal etc the
5. Hisense REFRIGERATOR Service manual NOTE This is a basic model the shape and specification of refrigerator is subject to change MODEL RS O9DC4S BD 65 PARTS INENTIFICATION Control Unit Control unit Storage Backets NOTE This figure is only a sketch Of the Refrigerator and the actual Products may differ from it CIRCUIT DIAGRAM THERMOSTAT SS Tey pegs p a ees OY PROTECTION SURCHARGE PRISE DE COURANT i i L i F w RELAIS F i d i i i 4 gt 2 CONDEHSATEU ra j i i EEE en l COMPRESSEUR MOTEUR COOLING DIAGRAM aja Wit TOE TOUT EO THOU capitary TCC nnn TOUT THU HOLT The quide for Disassembly Common parts of Refrigerator The instruction of replacing thermostat The location of the thermostat remove screws of top cover Unplug the connecting wire Take out the thermostat Take down Spring tap and Cover DIEG i sons CE ay ail tn ena anil ZZ Unplug the connecting wire Take out the PTC Starting relay and Overload protector Door Reversal The side at which the door opens can be changed from the left side to the right side as supplied if the installation site requires Warning When changing the side at which the door opens the appliance must not be connected to the mains Remove plug from the mains beforehand
6. ffler and exhaust pipe attention shall be paid to the surplus within the cold media and internal pressure 2 Unplugged the attaching plug gt 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 change in time 4 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 O namely grou
7. n the freezing chamber There is a peculiar smell in the units Refrigerator s two sides or the back heat the cabinet surface l ee 9 1 Air humidity is too large condensation The solution for the common problem 8 1 As condensation tube is placed here and caused the above phenomenon which is normal 1 Cooling is not enough good Many reasons might cause that cooling not enough good as blow If some gas leaked unit will work not well First find out the point of leaking Phenomenon of failure on tube and then sealed it a lower pressure of liquid cycle system vacuuming it finally recharge with b high temperature of copper tube of Gas discharging gas hand feels very hot Note C much noise sounds like ZZZZZ comes If you find oil on somewhere it is from outlet of capillary possible that leakage point is d the temperature fell down very slowly there If too much Gas was charged into the cycle system the extra gas will occupy some space of evaporator so that the area of heat exchange becomes less unit will work not well First stop unit for several minutes Phenomenon of failure and then open charging tube 2 The quantity of a higher pressure of liquid cycle system discharge all of gas Change a Gas is too much than norm new filter and then recharge gas b higher temperature of condenser finally sealed the system c larger electric current of compressor d there maybe ice on the suction tube
8. nding 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
9. or open raise the end ofthe top cover pull it 10 backwards to hitch the block 9 14 After the assembly of the top cover close the door fix the top cover 10 with the screw 11 TROUBLESHOOTING The common problem judging method 1 1 Is the power cord connecting well 1 2 Is the power voltage too low 1 3 Is the ambient temperature too low 1 4 Is the circuit on power 1 5 Is there some default in compressor 1 6 Is the refrigeration system blocked by ice or dirty please stop the unit and restart after 10 minutes to see if the compressor can start Refrigerator can t start 2 1 Is there any heat source around the refrigerator 2 2 Is there enough space around the refrigerator for rejection of heat 2 3 Is the setting of the temperature appropriate 2 4 Is there too much food or overheating food in it 2 5 Does the door open frequently 2 6 Is the door completely closed 2 Does the gasket destroyed or distort 2 8 Does the gas leak 3 1 Is there any heat source around the refrigerator 3 2 Is there enough space around the refrigerator for rejection of heat 3 3 Is the setting of the temperature appropriate 3 4 Is there too much food or overheating food in it 3 5 Does the door open frequently 3 6 Is the door completely closed 3 7 Does the gasket destroyed or distort 3 8 Is the thermostat good operation 3 9 Does the gas leak 4 1 Is the setting of the temperature appropriate 4 2 Is there multi moist
10. ure food and too close to the back wall of the refrigerator 4 3 Is the ambient temperature too low 4 4 Is the electric parts on good condition specially the thermostat wich will cause the unit non stopping 5 1 Is the refrigerator stably placed 5 2 Does the refrigerator bump other objects 5 3 Whether the internal accessory of the refrigerator is in the right place 5 4 Whether the water plate of compressor is fall from the unit 5 5 Does the tube of the refrigeration system bump each other 5 6 The noise sound likes Water flow inside the refrigerator in fact it is normal Abnormal noise which is caused both when refrigerator start and shut down in addition frost dissolving causes this sound too which is a normal phenomenon 5 There will be a cracking sound in the cabinet when the cabinet or cabinet accessory contracting or expanding this sound will be made which is normal 5 8 The motor operation sound in the compressor is appears to be louder at night or begin starting which is a normal phenomenon also the uneven placing would lead to too much running noise 6 1 Is the food with special smell sealed tight 6 2 Does it have long time storing food or degenerated food 6 3 Whether the internal cabinet needs cleaning the forefront or the 7 1 As fridge Anti condensation tube is placed here and caused the above middle cabinet heats phenomenon which is normal Weak cooling effects The unit can not stop running Ice up i
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