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System Flow Chart System Flow Chart 1 Schematic diagram of System Flow Chart 2 Brief Description of System Flow Chart HF-120T/180T/240T is just powered on, the refrigerant flows in the sequence: 1->2->3->4->5. 9 When the freezer is a direct cooling single-system freezer.
System Flow Chart System Flow Chart 1 Schematic diagram of System Flow Chart 2 Brief Description of System Flow Chart HF-120T/180T/240T is just powered on, the refrigerant flows in the sequence: 1->2->3->4->5. 9 When the freezer is a direct cooling single-system freezer.
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When charging refrigerant,we must notice to the section of condenser is very low YES NO Refrigerant leak,check and repair charge refrigerant again. YES If compressor can run after it stop to NO run naturally and temperature raising of "the compessor doesn't work". Check and repair according to make refrigerant true. 12 Block by ice or dirty things,change filter and change refrigerant again. ! Maintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting 1 No cooling No cooling If compressor can run five minutes and give power.
When charging refrigerant,we must notice to the section of condenser is very low YES NO Refrigerant leak,check and repair charge refrigerant again. YES If compressor can run after it stop to NO run naturally and temperature raising of "the compessor doesn't work". Check and repair according to make refrigerant true. 12 Block by ice or dirty things,change filter and change refrigerant again. ! Maintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting 1 No cooling No cooling If compressor can run five minutes and give power.
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Maintenance Service and Trouble Shooting 2 The compressor doesn't stop Comprossor doesn't stop Does the refrigerator NO refrgerate? YES Is cooling capacity insufficient. NO Adjust and instruct consumer how to the section of "No cooling". YES NO Check and repair according ... according to the section of "Cooling capacity is insuffcient". 1 The thermostat was set at the coldest position. 2 The ambient temperature is very high or the refrigerator is near by heat resource. 3 The door was opened too many times or there are more fresh food inside. NO Check and repair the main...
Maintenance Service and Trouble Shooting 2 The compressor doesn't stop Comprossor doesn't stop Does the refrigerator NO refrgerate? YES Is cooling capacity insufficient. NO Adjust and instruct consumer how to the section of "No cooling". YES NO Check and repair according ... according to the section of "Cooling capacity is insuffcient". 1 The thermostat was set at the coldest position. 2 The ambient temperature is very high or the refrigerator is near by heat resource. 3 The door was opened too many times or there are more fresh food inside. NO Check and repair the main...
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Does the refrigerant leak siowly?. Maintenance Service and Trouble Shooting 3 Cooling capacity is insufficient Cooling capacity is insufficient Is the ambient temperature low than YES 16℃ YES NO Check the therostat is correct? Repair 14 Adjust and instruct consumer how to use.
Does the refrigerant leak siowly?. Maintenance Service and Trouble Shooting 3 Cooling capacity is insufficient Cooling capacity is insufficient Is the ambient temperature low than YES 16℃ YES NO Check the therostat is correct? Repair 14 Adjust and instruct consumer how to use.
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... power output? YES Check and repair compressor and accessory. 15 Maintenance Service and Trouble Shooting 4 The compressor doesn't work The compressor doesn't work. Does the refrigerated room lamp illuminate NO when the door is correct? YES Is the ambient temperature low than 16℃ YES Check the power source and power...
... power output? YES Check and repair compressor and accessory. 15 Maintenance Service and Trouble Shooting 4 The compressor doesn't work The compressor doesn't work. Does the refrigerated room lamp illuminate NO when the door is correct? YES Is the ambient temperature low than 16℃ YES Check the power source and power...
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...be in suspense ,sometimes ,normal phenomena will be erroneously regarded as troubles .Therefore ,before we deal with the topics of frequently occurring troubles of refrigerators and their remedies ,we should firstly give a brief account of some normal phenomena which are not troubles .In case any one of such ... certain period of time or has just stopped its running .This sound is not easy to be heard in the daytime ,but also a refrigerating system that is difficult to discern whether it is caused by the stress relief due to the air through the compressor casing ,therefore ,its casing...
...be in suspense ,sometimes ,normal phenomena will be erroneously regarded as troubles .Therefore ,before we deal with the topics of frequently occurring troubles of refrigerators and their remedies ,we should firstly give a brief account of some normal phenomena which are not troubles .In case any one of such ... certain period of time or has just stopped its running .This sound is not easy to be heard in the daytime ,but also a refrigerating system that is difficult to discern whether it is caused by the stress relief due to the air through the compressor casing ,therefore ,its casing...
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...the evaporator or there is the highest . 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 operating ...determined according to their comprehensive analysis of temperature drop is abnormal if the speed of trouble characteristics as well as whether refrigerators are properly used and maintained .The parameters generally used to ascertain if various indication states are normal . c) Check ...
...the evaporator or there is the highest . 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 operating ...determined according to their comprehensive analysis of temperature drop is abnormal if the speed of trouble characteristics as well as whether refrigerators are properly used and maintained .The parameters generally used to ascertain if various indication states are normal . c) Check ...
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... by a sound similar to water flowing ,this is the sound produced by the normal circulation of condenser coil ),this indicates that the refrigerant is circulating . b) Listen to undulation of electric current can be heard ,this means that some moving parts have been clogged .As for...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 has come into the compressor cylinder ;if it sounds like "dang ,dang...", a striking sound of metal parts inside the compressor ,this...
... by a sound similar to water flowing ,this is the sound produced by the normal circulation of condenser coil ),this indicates that the refrigerant is circulating . b) Listen to undulation of electric current can be heard ,this means that some moving parts have been clogged .As for...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 has come into the compressor cylinder ;if it sounds like "dang ,dang...", a striking sound of metal parts inside the compressor ,this...
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... lower than usual can reject some suspicious troubles and finally make a correct judgment . 7 Analysis of Troubles and Troubleshooting A. Because a refrigerator is a combination of several kinds of troubles may share a common abnormal phenomenon ,and two or more abnormal phenomena may occur simultaneously due...may appear for a very short time period when just starting the machine ,this is the normal working state .For those refrigerator with refrigerant ,manage to find out two or more abnormal phenomenon ,or conduct troubleshooting comprehensively with the aid of instruments or other ....
... lower than usual can reject some suspicious troubles and finally make a correct judgment . 7 Analysis of Troubles and Troubleshooting A. Because a refrigerator is a combination of several kinds of troubles may share a common abnormal phenomenon ,and two or more abnormal phenomena may occur simultaneously due...may appear for a very short time period when just starting the machine ,this is the normal working state .For those refrigerator with refrigerant ,manage to find out two or more abnormal phenomenon ,or conduct troubleshooting comprehensively with the aid of instruments or other ....
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...piston ,causing damage to the components of compressor . Maintenance Service and Trouble Shooting There are so many joints and sealed surfaces in a refrigerator ,accordingly ,quite a lot potential leak points do exist in the system .In troubleshooting ,pay attention to those parts that cannot evaporates ... is air 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 follows :the gas suction and exhaust pressures are generally higher than their respective normal values ,the ...
...piston ,causing damage to the components of compressor . Maintenance Service and Trouble Shooting There are so many joints and sealed surfaces in a refrigerator ,accordingly ,quite a lot potential leak points do exist in the system .In troubleshooting ,pay attention to those parts that cannot evaporates ... is air 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 follows :the gas suction and exhaust pressures are generally higher than their respective normal values ,the ...
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...of its gas valve has deteriorated ,resulting in an decrease in its moving parts have worn to determine whether this trouble is caused by the refrigerating oil left in the evaporator ,the heat conduction effect will be severely affected when the whole tubing is loosely formed ,you can make a judgment... that the refrigerant in ,or use a fan to speed up air flowing so as to shorten the time needed for quite a long time ,its actual gas discharge...
...of its gas valve has deteriorated ,resulting in an decrease in its moving parts have worn to determine whether this trouble is caused by the refrigerating oil left in the evaporator ,the heat conduction effect will be severely affected when the whole tubing is loosely formed ,you can make a judgment... that the refrigerant in ,or use a fan to speed up air flowing so as to shorten the time needed for quite a long time ,its actual gas discharge...
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... is relatively complicated , too . ii) fast leakage in the evaporator can be 22 Maintenance Service and Trouble Shooting refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator ,dismantle the evaporator ,purge it thoroughly and then dry it .In case it is... difficult to dismantle it ,charge refrigerant from the liquid in that case ,all the refrigerant will escape swiftly due to abrupt rupture of system tubing . B. The abnormal phenomena caused by dirt accumulated in ...
... is relatively complicated , too . ii) fast leakage in the evaporator can be 22 Maintenance Service and Trouble Shooting refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator ,dismantle the evaporator ,purge it thoroughly and then dry it .In case it is... difficult to dismantle it ,charge refrigerant from the liquid in that case ,all the refrigerant will escape swiftly due to abrupt rupture of system tubing . B. The abnormal phenomena caused by dirt accumulated in ...
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... suction pressure rises as well ,it gradually ,then frost begins to melt at the evaporator ,no gas flowing sound can refrigerate and sometimes cannot :the refrigerator compartment works normally at the beginning ,but after a while if a gas flowing sound resulting from an abrupt gush is not... .Note that with ice, namely, higher gas suction pressure, lower temperature of discharged gas, and no will appear intermittently ; sometimes ,the refrigerator works well ,and sometimes not well .In order to determine whether it is clogged with ice ,heat the suspicious points with dirt exhibits the...
... suction pressure rises as well ,it gradually ,then frost begins to melt at the evaporator ,no gas flowing sound can refrigerate and sometimes cannot :the refrigerator compartment works normally at the beginning ,but after a while if a gas flowing sound resulting from an abrupt gush is not... .Note that with ice, namely, higher gas suction pressure, lower temperature of discharged gas, and no will appear intermittently ; sometimes ,the refrigerator works well ,and sometimes not well .In order to determine whether it is clogged with ice ,heat the suspicious points with dirt exhibits the...
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...the paste-like matter formed from it, purge the tubing with nitrogen, install a new filter, then evacuate it and finally charge it with refrigerant. Remedy The same as the clogging due to dirt . Method for making judgement It is quite difficult to differentiate this is also helpful ... will swing violently and the suction pressure is very high, whereas when the gas discharge valve block is rarely to suck and discharge the refrigerant. After rejecting the possibility of the compressor with dirt. 3) Troubles of Compressor a) Breakage of gas suction and discharge valve blocks Analysis of...
...the paste-like matter formed from it, purge the tubing with nitrogen, install a new filter, then evacuate it and finally charge it with refrigerant. Remedy The same as the clogging due to dirt . Method for making judgement It is quite difficult to differentiate this is also helpful ... will swing violently and the suction pressure is very high, whereas when the gas discharge valve block is rarely to suck and discharge the refrigerant. After rejecting the possibility of the compressor with dirt. 3) Troubles of Compressor a) Breakage of gas suction and discharge valve blocks Analysis of...
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...when repairing due to a stoppage. the other is that there are two possibilities: one is out of control Analysis of the refrigerating system. Superfluous refrigerant will occupy a certain space of the evaporator, thus reduce its normal value when the compressor has run for causing excessively high ...the protective relay actuate and bring to carelessness, or it with a proper quantity of Trouble The phenomenon, such as loose frosting and poor refrigerating effect, may occur, too. In the following we discuss mainly the reasons for a period not too long, thus making a pressure-operated ...
...when repairing due to a stoppage. the other is that there are two possibilities: one is out of control Analysis of the refrigerating system. Superfluous refrigerant will occupy a certain space of the evaporator, thus reduce its normal value when the compressor has run for causing excessively high ...the protective relay actuate and bring to carelessness, or it with a proper quantity of Trouble The phenomenon, such as loose frosting and poor refrigerating effect, may occur, too. In the following we discuss mainly the reasons for a period not too long, thus making a pressure-operated ...
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...will increase drastically making the thermal protector actuate and the fuse blown , and hence the motor stops running continuously in the refrigerator reaches its refrigerating capacity ; Never take correct measures to the compressor circuit. Make a comprehensive analysis of these phenomena, fine out its ...stoppage still occurs repeatedly, it is most likely that the mechanical parts or contacts are many things have been put into the refrigerator, and hence the thermal load exceeds its desired value, the thermostat will shut down the compressor automatically. b) Overload of electric...
...will increase drastically making the thermal protector actuate and the fuse blown , and hence the motor stops running continuously in the refrigerator reaches its refrigerating capacity ; Never take correct measures to the compressor circuit. Make a comprehensive analysis of these phenomena, fine out its ...stoppage still occurs repeatedly, it is most likely that the mechanical parts or contacts are many things have been put into the refrigerator, and hence the thermal load exceeds its desired value, the thermostat will shut down the compressor automatically. b) Overload of electric...
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... the compressor cannot be used in the lubricant oil line, or intermittent lubricant oil supply. Copper plating may also result in the refrigerator is probably out of lubricant, clogging in this inspection, too. ii) the control system works normally, and there are troubles in...in thermostat Analysis of Trouble Burnout of contactor and leakage of a certain phase is low, this means that short circuit does exist in the refrigerating system or other parts. 1) Temperature is set improperly a) The temperature control knob is already breakdown. I f the insulation resistance is lower than...
... the compressor cannot be used in the lubricant oil line, or intermittent lubricant oil supply. Copper plating may also result in the refrigerator is probably out of lubricant, clogging in this inspection, too. ii) the control system works normally, and there are troubles in...in thermostat Analysis of Trouble Burnout of contactor and leakage of a certain phase is low, this means that short circuit does exist in the refrigerating system or other parts. 1) Temperature is set improperly a) The temperature control knob is already breakdown. I f the insulation resistance is lower than...
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...work , thus the compressor runs continuously. If the evaporation temperature is too high, settle 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 of the compressor. ...temperature in quantity, recharge it has been found that the contacts of the thermostat cannot be achieved in its refrigerating capacity, the refrigerator temperature cannot reach its refrigerating capacity. If the door has deformed or the door seal is not tightly sealed against the case body, ...
...work , thus the compressor runs continuously. If the evaporation temperature is too high, settle 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 of the compressor. ...temperature in quantity, recharge it has been found that the contacts of the thermostat cannot be achieved in its refrigerating capacity, the refrigerator temperature cannot reach its refrigerating capacity. If the door has deformed or the door seal is not tightly sealed against the case body, ...
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...insulation has deteriorated due to being connected to be zero (0Ω); b) Leveling screws not properly adjusted If the leveling screws on refrigerator legs have been inversely connected accordingly ,this makes the ground protection lead-out from compressor Three suspended spring inside the compressor case are...become live wire and null line of the outdoor power supply circuit have not been adjusted properly ,vibration and noise will cause the refrigerator to the live wire .Another possibility is that case ,the first thing you test them with damp, thus resulting in installing ...
...insulation has deteriorated due to being connected to be zero (0Ω); b) Leveling screws not properly adjusted If the leveling screws on refrigerator legs have been inversely connected accordingly ,this makes the ground protection lead-out from compressor Three suspended spring inside the compressor case are...become live wire and null line of the outdoor power supply circuit have not been adjusted properly ,vibration and noise will cause the refrigerator to the live wire .Another possibility is that case ,the first thing you test them with damp, thus resulting in installing ...
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... Shooting 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 weaker or vanishes .If the refrigerator has not been levelly placed ,put a level meter on its top table and adjust the leveling screws...
... Shooting 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 weaker or vanishes .If the refrigerator has not been levelly placed ,put a level meter on its top table and adjust the leveling screws...