It can be so frustrating to have a refrigerator that doesn’t serve its purpose fully especially on a hot summer afternoon when you are ready and fully prepared to enjoy a cold glass of juice and find that you refrigerator is not cooling properly or its not cooling at all. There are very possible reasons behind the whole saga, as to why your refrigerator is not cooling properly or not cooling at all. Read below the highlighted reasons behind refrigerator not cooling and possibly you will be able to understand and find a solution as to why your refrigerator is not cooling properly.
Frosted evaporator coil
Refrigerator has some evaporator coils and a circulating fan that is placed in the freezer zone of the refrigerator. Excessive frost that is developed in the evaporating coils can be a major cause of the refrigerator not cooling properly. The accumulated frost usually accumulates slowly by slowly around the fan and the evaporator coils. The frost leads to separation of the coils and the fan thus leading the circulating fan being unable to draw in air over the frosted coils. However, if at all there is amount of cooling taking place, then it’s very minimal with no air flow over the coils. The frost should not be left there, however the frost should be dealt with by manual defrost or in automatic defrost in frost free refrigerators. This will enable proper cooling inside the refrigerator.
Faulty evaporator fan
The fan normally helps to circulate the cool air from the freezer to other parts inside the freezer. In case the fan stops working it stops circulating the cool air that circulates inside the food section. This leaves the freezer cold but the food section not cooling.
Spoilt defrost system
Every refrigerator has a free defrost system and has a defrost system helps to control the cooling and the defrost cycle. The defrost system is usually controlled by a defrost timer and a defrost heater.
A defrost timer operates by switches the refrigerator between the cooling and the defrost mode. In case a defrost timer goes bad and happens to stop at cooling mode, it will automatically lead to building up of the excessive frost thus reducing the air flow.
The compressor is a very important and vital part of refrigerator. It is the heart of refrigeration cycle. When it has a problem and fails to work well, then it automatically affects the entire cooling process and it doesn’t even start. The compressor helps to compress the refrigerant from a low cooling pressure vapor and leads it to high pressures hot vapors. The compressed refrigerant in the hot vapor streams through the condenser whereby at this point it gets condensed into high pressure liquid. Then, the liquid is used to cool down a low pressure vapor as it streams through the evaporator coils. The air that streams through the cooling coils helps to keep the refrigerator cool. This automatically means, if in any case the compressor goes out of order, the whole refrigeration cycle does not even start.
Insufficient refrigerant level in fridge compressor
A heart requires blood to pump to enable sufficient flow and proper circulation of the blood into a human being. Thus if the compressor is the heart of the refrigerator then it requires enough refrigerant to help sufficient cooling process. Any refrigerant leakage or low levels will affect the cooling inside the refrigerator. So, to such small issues can be prevented by always checking the level of your refrigerant to ensure you have enough refrigerant always.
Dirt insulated condenser coils
A lot of heat dissipated by the refrigerant in the condenser can cause refrigerator to stop cooling properly. If the condenser coil is left dirty and loaded with debris, it blocks the heat from flowing out of the coils properly. The heat stays inside the refrigerator thus reducing the cooling process which is very dangerous.
Defective condenser fans
The refrigerator has a fan that usually forces hot air out of the refrigerator. In case it goes bad or gets spoilt, the hot air will not be released in to the room thus remaining inside the refrigerator. The heat left inside may cause the temperature inside the refrigerator to rise up. A damaged fan motor or flawed fan blade will prevent the condenser fan from operating and functioning Refrigerator not cooling properly.
Faulty start relay
This is a small device which is placed near the compressor. Its major function is to help the compressor to start up. In case this relay is out of order, then automatically the compressor will not start and that goes without saying the cooling process in the refrigerator will not begin.
Defective start capacitor
The start capacitor is a device that gives and boosts the compressor to start up. In case the capacitor gets burned off or rather is out of order,, possibilities are the compressor might not start up and the refrigeration cycle or process will not commence causing the refrigeration cycle not to begin and hindering the refrigeration cooling process.
This is a sensor that usually controls the air temperatures inside the refrigerator.it also controls when to start and begin the cooling cycle of the refrigerator. When the thermistor runs bad or faulty, then there refrigerator fails to cool at all or cools continuously.
The refrigerator not cooling is not a new thing. It’s a very common problem which can be taken care of by the professional personnel who deals with refrigerator repairs. It requires quick and immediate attention once a problem is detected. Always seek for a competent person to help you examine and diagnose the issues and the key causes of your refrigerator not cooling properly.