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Your Refrigerator does not operate

Issue:

Check power cable is plugged in and switched on. The circuit breaker has tripped or the fuse has blown. The temperature control is set at "O"

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Your Refrigerator is too cold

Issue:

The temperature control dial may be set too high.

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Your Refrigerator is not coldenough

Issue:

Check the temperature control dial is set at "3". A higher external ambient tempera- ture may require a higher setting. The door is opened too often. The door is not closed completely. The door gasket does not seal properly. The unit does not have the correct clearances at the sides/back

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The defrosting water overflows inside the unit and onto the floor

Issue:

Check if the cooler's drain pan is full

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The side panel heats up

Issue:

This is a result of the dissipation of the heat from inside the cabinet.

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Fondensation forms on the outside of the refrigerator

Issue:

Condensation will form on the outside of the unit if it operates in moist areas, simply wipe it dry.

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The refrigerator seems to make too much noise

Issue:

Appliance is not on a level, firm surface or may be touching other items. Note it is normal to hear refrigerant flowing as the compressor stops and starts.

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Poor refrigerating effect

Issue:

The so-called "poor refrigerating effect " refers to the fact that the refrigerator can operate and refrigerator normally, but the temperature in the refrigerator cannot drop to the prescribed value under the stipulated working conditions.Given that there may be many causes for this phenomenon, we are going to discuss and analyse it by the following aspects:
1. Leakage of refrigerant analysis the leakage of refrigerant in the system will result in an insufficient refrigerating capacity. The resulting phenomena are its lower gas suction pressure and exhaust pressure as well as higher exhaust gas temperature. The exhaust tube feels rather hot, a continuous gas flowing sound that's louder than usual may be heard at the outlet of the capillary, and no frost or a smaller quantity of loose frost appears on the evaporator. After shut down, the balance pressure in the system is usually lower than the saturation pressure corresponding to the same ambient temperature.
2. Too much refrigerant charged into the system analysis: Either a. If the amount of refrigerant charged into the system exceeds its nominal capacity, the superfluous refrigerant will necessarily take some space of the evaporator, thus reducing its heat-dissipation area and hence the refrigerating efficiency of the system. The abnormal phenomena caused by this reason are as follows: the gas suction and exhaust pressures are generally higher than their respective normal values; the temperature of its condenser is higher and the electric current of the compressor rises; loose frost forms on the evaporator; the refrigerator temperature drops slowly; and frost appears on the gas return tube. or b. If excessive refrigerant has been charged, the liquid refrigerant that cannot evaporate 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 refrigerating oil at the bottom of compressor. If the condition is severe, foam will fill inside the compressor housing and be sucked by the piston, causing damage to the components of compressor.
3. there is air left in the refrigerating system analysis residual air in the refrigerating system will reduce its refrigerating efficiency. The main phenomena are: the increase in its gas suction and exhaust pressures (note however that the gas exhaust pressure will not exceed its rated value), and an obvious increase in temperature in the segment from the compressor outlet to the condenser inlet. Because there is air in the system, both the gas exhaust pressure and temperature will rise, moreover the gas flowing sound is intermittent and obviously louder.
4. Low Efficiency of compressor analysis low efficiency of a refrigerating compressor refers to the actual reduction of gas discharge capacity, and hence the corresponding reduction of refrigerating capacity, under the condition that the refrigerant in the system is unchanged. This phenomenon occurs mostly when the compressor has been used for quite a long time, its moving parts will have worn to a considerable degree, fit clearance between various parts have increased and sealing property of its gas valve has deteriorated, resulting in a decrease in its actual gas discharge capacity.
5. Too thick a frost layer is formed on evaporator analysis if a direct cooling refrigerator is to be used for a prolonged period of time, be sure to defrost its evaporator regularly.If you fail to do so, the frost layer on the evaporator tubing will become thicker and thicker. Heat conduction will be severely affected if the whole tubing is wrapped with an ice layer, and hence the temperature in the refrigerator can not drop down to the prescribed range.
6. Refrigerating oil left in evaporator tubing analysis during a normal refrigerating cycle, a little refrigerating oil may remain in the evaporator tubing. After a prolonged life, if there is considerable refrigerating oil left in the evaporator, the heat conduction effect will be severely affected this causing a poor refrigerating effect.
7. Flowing obstructed in refrigerating system analysis because the refrigerating system was originally not purged thoroughly, some of the filter screen meshes have been clogged by dirt accumulated in the filter after use, thus resulting in a decrease in flow rate, and hence a poorer refrigerating effect. The abnormal phenomena caused by this kind of slight clogging in the system are as follows: the gas discharge pressure is lower, the temperature of discharged gas drops, the position clogged has a temperature lower than that in its normal condition and, for a severe clogging, even dew condensation as frost may appear.

Advice:

REMEDY 1: In case there is leakage of refrigerant from the system, do not hurry to recharge it with refrigerant, manage to find out leak points immediately, and make a note of from where it leaks, i.e. welding points and parts. After having them repaired, recharge refrigerant. There are so many joints and sealed surfaces in a refrigerator, many potential leak points do exist in the system. In troubleshooting, pay attention to those parts that are liable to leak. Check main connection points for oil seepage and tubing for cracks. If there is no severe leak point, charge the system with nitrogen and detect leak points with the commonly adopted method, repair them, evacuate, charge the system with refrigerant, and then turn on the refrigerator to make a test run.
REMEDY 2: According to the operating procedures, you MUST to turn the machine off, wait several minutes, then open the refrigerant charging tube to let the refrigerant escape. Replace the dry filter, recharge refrigerant after evacuating, and then seal the charging port.
REMEDY 3: Shut the unit down, wait several minutes, then open the tubing, evacuate it and recharge the system with refrigerant.
REMEDY 4: Measure the high and low pressures with pressure gauges to see whether they are normal. If an abnormal sound comes from the compressor or the temperature of its causing is too high, cut the discharge port open and operate the compressor. Feel if there is pressure at the discharge port with your finger – for a normal compressor, its discharge port is difficult to be blocked with your finger if you just apply a little pressure.
REMEDY 5: Turn the refrigerator off, and make preparations for defrosting. Open the refrigerator door to let air in, or use a fan to speed up the flow of air, to shorten the time needed for defrosting. Never attempt to speed up defrosting by chipping at the ice with sharp tools: this may cause damage to the evaporator tubing, or cause personal injury.
REMEDY 6: It may be difficult to determine whether this problem is caused by the refrigerating oil left in the evaporator tubing, because this kind of phenomenon, amongst other several faults, tend to be confused. Generally speaking, you can make a judgment based on the frost formed on the evaporator. If the frost does not cover the evaporator and it is loosely formed, you can make a judgment that the deterioration of refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator tubing, if no other fault has been found. To clear refrigerating oil left in the evaporator, dismantle the evaporator, purge it thoroughly and then dry it. If it is difficult to dismantle, charge refrigerant from the evaporator inlet to wash it several times, then purge and dry it with nitrogen.
REMEDY 7: Purge the tubing, replace the dry filter with a new one or clear it thoroughly, recharge the system with refrigerant and seal the charging port