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    Refrigerator not cooling

    Refrigerator not cooling


    You notice that your refrigerator is working fine but your food is not cold enough. The problem of a refrigerator not cooling properly could have arisen out of a faulty compressor or complete compressor failure.

    Duration 1 - 2 days
    Turnaround Time 2 hours
    Pricing Depends on scope of work
    • Diagnosis
    • Cost of parts replaced

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    More about Refrigerator not cooling

    What are the reasons behind “refrigerator not cooling” problem?

    Nothing can be worse that a broken refrigerator on a hot summer day. If your refrigerator does not cool properly, it indicates that something has gone wrong inside which needs repair.

    Refrigerator not cooling is difficult to fix and most of the time require a refrigerator repair expert to identify the root of the problem.

    The common reasons behind refrigerator not cooling problem are:

    • Frosted evaporator coil: There are evaporator coils and circulating fan in the freezer zone of a refrigerator. Poor cooling can be a result of excessive frost development on the evaporating coils of your refrigerator. Over time frost accumulates over the coils and fan. When frost collects over evaporator coils, they get insulated. Due to this the circulating fan is unable to draw air over the frosted coils. There may still be a small amount of cooling because the frost over the coils, but with no air flow over the coils. This frost should be removed by manual defrosting or automatic defrost (in frost free fridge) for proper cooling inside refrigerator.
    • Faulty evaporator fan: Another common reason of refrigerator not cooling properly is a defective evaporator fan. The fan circulates cool air from the freezer to other compartments inside fridge. When evaporator fan stops working it cannot circulate cool air inside the food section. Due to which the freezer continues to be cold but food section of your refrigerator does not cool.
    • Out of order defrost system: In any frost free fridge there is a defrost system which controls the cooling and defrost cycle. The components of the defrost system are: a defrost timer and a defrost heater:
      • A defrost timer switches the refrigerator between the cooling and defrost mode. If it goes bad and stops at cooling mode, it causes excessive frost to build up on the evaporator coils which reduces the air flow. Or when it stops at the defrost mode it melts all the frost and does not go back to the cooling cycle. A broken defrost times prevents the refrigerator from cooling efficiently.
      • A defrost heater melts the frost developed over the evaporator coil. But if it goes bad frost does not melt and excessive frost accumulates on coils reducing the cool air flow inside the refrigerator.
      • So when either of the 2 become faulty, the fridge does not understand when to cool and when to defrost.
    • Faulty compressor: The most common cause of refrigerator not cooling is a faulty compressor. A compressor is the heart of refrigeration cycle. When it does not work properly, the entire cooling process of your fridge does not even start. The job of the compressor is to compress the refrigerant from a low pressure cool vapor into high pressure hot vapors. This compressed refrigerant in the form of hot high pressure vapors then flows through the condenser where it get condensed into high pressure liquid. This liquid then flows through the evaporator coil where it evaporates and cools down to a low pressure vapor. Air flows over the cooling coils and keeps the refrigerator cool. So when the compressor is out of order, this refrigeration cycle does not even start and your refrigerator does not cool.
    • Insufficient refrigerant level: In a fridge, if compressor is the heart, the refrigerant is the blood of the cooling cycle. Refrigerant leakage or under limit refrigerant also effects the cooling inside the refrigerator.
    • Dirt insulated condenser coils: Dirty condenser coils prevent refrigerator from cooling properly. In a refrigerator when high pressure hot refrigerant condenses in the condenser, a lot of heat is dissipated. But when the condenser coil is dirty and loaded with debris, heat does not flow out of the coils properly. This heat stays inside the refrigerator and reduces the cooling.
    • Defective condenser fan: In your refrigerator there is a condenser fan that forces hot air out of the refrigerator. So when it goes bad the hot air cannot be released into the room and remains inside the refrigerator. Because of this the temperature inside the refrigerator shoots up. A faulty fan motor or defective fan blades prevent the condenser fan from working properly.
    • Defective start relay: Refrigerator not cooling can be caused by defect in small parts like start relay and start capacitor. In a fridge there is a start relay. It is a small device located near compressor. It helps compressor in starting up. If the start relay is defective, then the compressor does not start and the cooling process in the refrigerator does not commence. There is a start capacitor that gives boost to the compressor to start up. If this capacitor is burned out, the compressor might not start up and the refrigeration cycle will not commence and refrigerator fails to cool.
    • Faulty thermistor: A thermistor is a sensor that control the air temperature inside refrigerator and controls the start and stop of cooling cycle. If it goes faulty, then the refrigerator does not cool at all or cools continuously.

    These are some common reasons behind refrigerator not cooling problem but there can be other reasons as well.

    What is included in the service?

    The PRO visits client’s site and troubleshoots the problem of refrigerator not cooling. The PRO looks for all possible reasons behind fridge not cooling like dirty cooling coils, insufficient refrigerant level, defective key components of fridge like compressor, condenser, coolant, thermistor, start capacitor, sensor and others. After the actual problem is identified, PRO describes the problem to the customer and suggests a possible repair or replacement. On customer consent, the PRO repairs the fridge.