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- Logic
- Refrigerator
- LUL55S10
- Service Manual
Logic LUL55S10 Service Manual
Summary of LUL55S10
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1 refrigerator service manual models: lul55s10 features ● energy efficiency ● low noise operation ● thick insulation for energy efficiency.
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2 content content 1. Content 1 2. Product code illumination and series introduction 2 3. Specifications 3 4. Safety precautions 4 5. Function schedule 7 6. System flow chart 8 7. Circuit diagram 9 8. Maintenance service and trouble shooting 10 9. Exploded view 30 10. List of parts 31.
Page 3: Specifications
3 specifications specifications models lul55s10 net capacity (l) 131 color silver power supply (v/hz) 220~/50 rated input power (w) 63 power consumption (kw.·h/24h) 0.415 net weight (kg) 28.5 gross weight (kg) 31.5 unit dimension (d*w*h) (mm) 570*544*845 packing dimension (d*w*h) (mm) 560*535*885 co...
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4 safety precautions safety precautions this appliance uses 220-240v~50hz ac for 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...
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5 safety precautions safety precautions it is absolutely prohibited to put hazardous inflammable or explosive articles, strong corrosive acid, alkali, etc inside the appliance. Do not keep medicine, vaccine, or chemical agent in the appliance. This refrigerator is for household use, which cannot sto...
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6 safety precautions safety precautions 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 be to be stuck on the cold surface. Do not spray water onto the refrigerator, or place i...
Page 7: Function Schedule
7 function schedule function schedule ● energy efficiency ● low noise operation ● thick insulation for energy efficiency.
Page 8: System Flow Chart
8 system flow chart system flow chart 1 schematic diagram of system flow char t 1. Compressor 2. Condenser 3. Dry filter 4. Capillary tube 5. Evaporator 2 brief description of system flow chart model lul55s10 is a direct cooling single-system refrigerator. When the refrigerator is just powered on, t...
Page 9: Circuit Diagram
9 circuit diagram circuit diagram 1 schematic circuit diagram 2 brief description of control principle model lul55s10 is a direct cooling single-system larder. A mechanical type of all the control is generally adopted. The thermostat directly controls the start and stop of compressor, and hence the ...
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10 maintenance service and trouble shooting maintenance service and trouble shooting 1. No cooling no yes no yes when charging refrigerant, we must notice to make refrigerant no cooling if compressor can run after it stop to run five minutes and give power. Check and repair according to the section ...
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11 true. Maintenance service and trouble shooting 2 the compressor doesn't stop yes no yes no yes no yes compressor does not stop is refrigerator cooling? Check and repair according to the section of "no cooling". Is cooling capacity insufficient? Check and repair according to the section of "coolin...
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12 maintenance service and trouble shooting 3 cooling capacity is insufficient yes no yes yes no yes cooling capacity is insufficient adjust and instruct consumer how to use repair is the ambient temperature low than 16°c does the refrigerant leak slowly? Check the thermostat is correct?.
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13 maintenance service and trouble shooting 4 the compressor doesn't work yes no no yes yes no yes yes no yes no yes the compressor doesn't work. Is the interior light on when door is opened? Is the power of 220v output? Do the compressor have 220v output? Is the ambient temperature low than 16°c ch...
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14 maintenance service and trouble shooting 5 normal phenomena—not troubles for refrigerators in a domestic refrigerator, there is not only a complicated electric control system, but also a refrigerating system that is difficult to discern whether it is in a good working condition. Both the systems ...
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15 maintenance service and trouble shooting 6 common troubles in refrigerators and their remedies causes for troubles occurring in refrigerators are closely related to the quality of components and workmanship in assembling by manufacturers as whether refrigerators are properly used and maintained ....
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16 tube inside the compressor ,and clucks are the sound of striking after the suspended spring inside the compressor has broken . During the 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 .Howev...
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17 phenomenon has been found through the above-mentioned checkups ,you need not to make a hasty conclusion based on only one abnormal phenomenon .It is advisable to find out two or more abnormal phenomenon ,or conduct troubleshooting comprehensively with the aid of instruments or other ways ,because...
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18 return tube . B) in case excessive refrigerant has been charged, the liquid refrigerant that cannot evaporates 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 ref...
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19 remedy turn the refrigerator off ,and make preparations for defrosting ,open the refrigerator door to let the air come in ,or use a fan to speed up air flowing so as to shorten the time needed for defrosting .Never strike the frost layer with any iron tools or wood stick in order to avoid damage ...
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20 i) slow leakage for instance ,when we want to use a refrigerator that has been put out of quite a long time ,we find the leakage of refrigerant ,or in the course of its operation ,we have found that the refrigerator is gradually becoming not so cold and finally no refrigerating cab be achieved ; ...
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21 screen may be blocked totally, 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 gas flowing sound from the evaporator. The difference between the both is as...
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22 discharge pressure and low suction pressure. 1) stoppage due to excessively high gas discharge pressure a) too much refrigerant charged into the system analysis of trouble the phenomenon, such as loose frosting and poor refrigerating effect, may occur if excessive refrigerant has been charged int...
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23 probably, too many things have been put into the refrigerator, and hence the thermal load exceeds its refrigerating capacity ; or in case the power supply voltage drops considerably, the current flowing through the motor will increase drastically making the thermal protector actuate and the fuse ...
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24 motor, and a hum sound can be heard from it. Remedy measure the voltage with a voltmeter, if it is really too low, give directions to the user for buying a stabilizer so as to step up the voltage, thus normal operation can be achieved. 3) check the thermal relay to see whether its contacts are cl...
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25 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 m...
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26 refrigerant. 4) no stoppage of compressor due to damaged heat-insulation layer inside case body and/or door seal analysis of trouble when the heat-insulation layer inside the case body deteriorates or the door seal is not closely touches the door frame, the temperature in the refrigerator will ri...
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27 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 ca...
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28.