HANGZHOU LASBEIM KITCHEN EQUIPMENT CO.,LTD

HANGZHOU LASBEIM KITCHEN EQUIPMENT CO.,LTD

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Name: Arthur
Tel: 0571-89305039
Fax: 0571-89305016
Mobile: 13372512200
E-mail: hzlasbeim@126.com
Add: NO.7 Yuda Road,Yiqiao Industrial Zone,Yuhang District,Hangzhou City,China
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FAQ
                                                  Frequently asked questions and refrigerator repair methods

Refrigerator not cooling mainly in the following areas:
1, the compressor is shut down, if not stop, can be analyzed from the following:
High temperature in the refrigerator, which has two cases: first, the cooling system leak fluorine, which is no refrigerant, though the refrigerator has been running, but the inside temperature is not falling, time is too long, the food inside will broken, so to be repaired. General if not new refrigerator, this occurs is very slow, it's early in the cold room has half frost, while the other half frost, frost edge thicker, longer time, not the refrigerator compartment there will be frost, then only some water polo may appear, the higher the temperature inside. Such refrigerators generally more difficult to repair because the leak is difficult to find, so it can not be repaired to maintain a longer time, if the leak is still relatively Zou find out, this time through the oxygen welding can handle. The second reason for the high temperature in the evaporator frost refrigerator case primarily cooled, the refrigerator has only one evaporator, when the frost on the evaporator can not dissipate, causes duct blockage, cold can not go out, so the refrigerator can not be cooling. This occurs because of a problem with the defrost system may be faulty defrost timer, or a heat pipe has been blown.
2, the compressor does not start
1). Refrigerator or without power, we can open the freezer door, the lights can be bright if it shows an electric refrigerator, if not light, you can check whether the total electric power, and then check the fridge fuse (not all refrigerators have ), a final check of the thermostat contacts if there are problems.
2) The compressor is burned, you can check the motor coil is blown, check the starter last case, sometimes overheating protection at work, you need a certain time, so that after the temperature dropped to start the compressor.
3). Thermostat can not be reset, because the contacts are sintered together, it can not be separated, resulting in failure.

Refrigerator downtime fault analysis and judgment
Refrigerator without stopping the machine has the following main aspects:
1, the ambient temperature is too high
Each fridge has its weather patterns, such as SN, N, ST, T-type, etc., generally for SN and N-type refrigerators maximum ambient temperature of 32 degrees, as it is prone to exceed this temperature refrigerator without stopping the machine environment, which mainly small cooling capacity of the refrigerator, or the power of the compressor must not be too small causes, and the ST and T-type refrigerators can be stopped in case of higher temperature, for example at a high temperature of 38 degrees, refrigerator still normal shutdown. So be sure to pay attention to when buying a refrigerator, freezer the nominal type of climate is very important, if the local temperature is higher in the summer, the best choice to adapt to high temperature environments refrigerator. When the ambient temperature is high, the heat load of the refrigerator to increase the length of time needed to boot, so you should try to reduce the door.
2, temperature regulation is too low
For mechanical temperature of the refrigerator, the temperature can not be displayed, so when the thermostat adjusted to a position, generally no longer tune, but the temperature inside the refrigerator is changing, so in the summer due to the thermostat to adjust the position is too low refrigerator downtime caused by the phenomenon. If you feel the refrigerator temperature is too low, you can Jiang thermostat counterclockwise rotation is small, or small digital modulation. For a computer has the advantages of the refrigerator in this regard.
3, freezer frost wall
For mechanical thermostat refrigerator, especially at high temperatures, you can see the wall freezer frost, and frost layer is thicker, resulting in a refrigerator without stopping the machine. The main reason for this situation is that the thermostat to adjust the temperature is too low, or a box of food storage location is wrong, too many times the refrigerator door, refrigerator door seal poor insulation. The solution is to first shut down the refrigerator, the cream out of the freezer wall, position adjustment will reboot after the thermostat, the door seal inspection, if the refrigerator is normal, this phenomenon will handle well, if the refrigerator itself there are problems, you should look for manufacturers handling.
4, refrigerator thermostat malfunction
Since the refrigerator thermostat failure will cause the refrigerator itself without stopping the machine, but this machine does not stop only at a high temperature environment, the temperature at all, but in case of more severe high-temperature environment. The main reason is leakage of fluorine mechanical thermostat or temperature sensor can not feel the temperature control circuit board fault computer refrigerator.
5, refrigerator refrigerant leak
This refrigerator is not cooling without upfront performance, a long time after the refrigerator temperature will rise, slowly began not cooling, but the refrigerator compressor still working, a good way to determine the quality of the refrigerator, if the compressor in work, but does not heat the sides of the refrigerator (the refrigerator is now most are), you can initially identified.

Condenser vibrate sound
(A) Analysis
In the course of the refrigerator, and sometimes can hear jitter or crackling sound emitted by the condenser, which sound more appear on the louvered condenser, so this is a cooling condenser squeeze in louvered plate fins The on-chip, to form a whole, but in the production process, or for other reasons, is often caused by a combination between the condenser and the heat sink firmly deteriorates, resulting in loosening and therefore the operation of the compressor, the condenser, there is a different tube inside and outside temperature changes, as well as cooling and heat sink thermal expansion coefficient between the two produced a loosening, thus sending a crackling sound, the sound temporarily, though not affect the use of the refrigerator, but under the long-term impact branch, the one annoying, and secondly, make cooling pipe breakage, causing refrigerant leakage.
(B) exclusion method
Stop operation of the compressor, and then at 502 loose glue droplets in cooling and heatsink to dry after a day later, and then start the compressor is running, there will be a sound.

Hot and cold refrigerator condenser
Refrigerator for cooling the condenser, the heat which is generated during the cooling of the refrigerator is released into the surrounding environment. In the current design, there are two main design methods, one is to hang it on the back of the refrigerator, this approach is more common in the early period, and the other one is hiding in the side panels of the refrigerator, which is a Newer types of ways, and its main purpose is to reduce the aesthetic and condensate plate.
While when the refrigerator in the refrigeration condenser heat start, stop when the refrigerator, cooling stop temperature of the condenser is gradually decreased, and finally the temperature has dropped to the ambient temperature is lower than 2 to 3 degrees.
In the summer, can all be sensed on both sides of the heating, but there are always some of the higher temperature side, in other seasons, the heat may not have the side, which is due to the thermal load is small, relatively large area of ​​the condenser, Therefore, the temperature is quite the opposite side of the ambient temperature.
The fastest way to test the quality of the refrigerator in the boot soon, if the condenser can feel the heat, if not then this may not be cooling the refrigerator.

The maximum temperature of the refrigerator condenser compared with the ambient temperature, generally about 10 degrees higher.
Since the condenser pipe is glued to the plate, the plate at different points on a certain temperature difference.

Refrigerator condenser abnormal hot
Refrigerator for cooling the condenser, the heat which is generated during the cooling of the refrigerator is released into the surrounding environment. In the current design, there are two main design methods, one is to hang it on the back of the refrigerator, this approach is more common in the early period, and the other one is hiding in the side panels of the refrigerator, which is a Newer types of ways, and its main purpose is to reduce the aesthetic and condensate plate.
While when the refrigerator in the refrigeration condenser heat start, stop when the refrigerator, cooling stop temperature of the condenser is gradually decreased, and finally the temperature has dropped to the ambient temperature is lower than 2 to 3 degrees (plate).
In the summer, can all be sensed on both sides of the heating, but there are always some of the higher temperature side, in other seasons, the heat may not have the side, which is due to the thermal load is small, relatively large area of ​​the condenser, Therefore, the temperature is quite the opposite side of the ambient temperature.
The maximum temperature of the refrigerator condenser compared with the ambient temperature, generally about 10 degrees higher.
If the refrigerator abnormal hot, the cooling-system problems, such problems are generally high system pressure, the high temperature will generally be in the air entering the system, or the excessive amount of the refrigerant charge, the condensing end of the pressure over high, the formation temperature. If you run a refrigerator at a high temperature environment, it may be hot, be careful to distinguish. Generally less likely to mix with air in the refrigerator, because the air, the poorer the performance of the refrigerator, it is difficult to reduce the temperature of the freezer compartment, the refrigerator is not stopped.

The oil plug and condenser fouling
Refrigerator where it is prone to blocking filter drier and capillary, filter drier place in the design of the filter, and the capillary diameter is too small.
The reason is that the oil block after a massive oil deterioration, poor flow, high flow resistance, the flow of the refrigerant can not pass, so that pipeline flow camel appeared sluggish.
The main reason for fouling is dirty line, or the compressor and other moving parts to wear out, some impurities are formed, or the separation of oil-insoluble substances, such as paraffin, etc., resulting in poor circulation conduit.

Generally rarely appear in the condenser of the above-described phenomenon, that it is certainly not impossible, because it is generally smaller diameter of the condenser, the refrigerant flows through the high-speed, on the wall, such as the formation of some masonry materials, but not enough to consider the design process, condenser resistance is too large, the greater the opportunity arise.
During maintenance checks preferred capillary and filter, if convinced that the available nitrogen blown through, the refrigerator can be inverted, the oil tube blow.
Check the fridge common faults

1, no refrigeration: refrigerator power cord is plugged in; outlet has power; power circuit breaker is disconnected. Check the freezer door lights are lit to determine whether the refrigerator power. Check the thermostat is working gear, the thermostat has shut down files (0 files), put down the file compressor is not working. If more than a few checks were normal, please look for the maintenance staff to resolve.
2, refrigeration bad: Check the thermostat is set too low gear. Food is stored or put excessive overheating foods. Door or door seals are frequently lax. Whether in direct sunlight or near a heat source refrigerator. Are poor ventilation around. Check the ambient temperature is too low, and the temperature compensation switch is not turned on.
3, there is the sound of the refrigerator will not start: under normal ambient temperature conditions (15 ℃ -38 ℃), the refrigerator starts, if the compressor issued a "buzzing" sound, compressor stopped working about half a minute, this is due to the supply voltage too low (less than 187V) cause the compressor can not start; If the compressor issue "Blessings" sound, then heard "Pata" sound, this situation is due to the supply voltage is too high (above 242V) or continuous compressor caused by long working hours; When the supply voltage returns to normal or compressor casing temperature decreases, the refrigerator is able to work properly.
4, door seal lax: Mainly the gap between the refrigerator door seal and the cabinet because the door seals deformation, hair dryer available (power 300W) blowing grilled concave deformation part, to restore the status quo, to eliminate the gap. However, note that the power of a hair dryer can not be too hot not too concentrated, hair deformation door seals not too close from the mouth, otherwise it will damage the door seal. In addition, the door seals and door bottom of the depression phase of a thin foam pad, you can eliminate the gap. If the above correction is invalid and should be replaced with new tape. 5, freezer water or water overflow: freezer drain hole blocked, causing condensation water can not be discharged smoothly, with a certain flexibility of the tool can be clear.
◎ how completely cold?
1 is a power outage; 2 power plug is loose refrigerator; 3 families no fuse power switch is tripped, or other switch fuse is broken
◎ cooling degree inadequate?
1 is placed in hot or refrigerator door frequently switch;. 2 is too much food in the refrigerator; 3 installed if there are problems, refrigerator behind the heat sink is blocked
How ◎ external refrigerator, condensation?
A refrigerator in a damp place using lateral condensation is possible, this is not a fault, just wipe with a dry cloth and ventilation can be maintained around
◎ lower food frozen?
1 Please check the thermostat or lower throttle switch, knob switch is in the proper position
2. Installation site temperature is below 5 degrees C below
3. Whether to put too much water, easily frozen foods, on the inside hurdle
◎ how will generate noise?
1 is on firm, flat ground
2 refrigerator is placed against a wall
3 evaporator coil is placed in the correct position
4 when the compressor is operating, refrigerant will flow sound, this is a normal phenomenon
How ◎ would leak?
1 Check the ground wire is connected, if not connected, the compressor will operate electrostatic induction, the feeling that there will be an electric shock when touching the refrigerator, but not fatal.