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  2. 6 Common Reasons Why Your Refrigerator Isn’t Cooling, But the ...

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    The evaporator fan pulls cold air into the evaporator coils, where it is then distributed through the fridge and freezer. If the fan isn't working, this doesn't happen efficiently. The most common ...

  3. Auto-defrost - Wikipedia

    en.wikipedia.org/wiki/Auto-defrost

    Inside the freezer, air is circulated by means of one or more fans. In a typical design cold air from the freezer compartment is ducted to the fresh food compartment and circulated back into the freezer compartment. Air circulation helps sublimate any ice or frost that may form on frozen items in the freezer compartment. While defrosting, this ...

  4. Refrigerator - Wikipedia

    en.wikipedia.org/wiki/Refrigerator

    This cooled air is returned to the refrigerator or freezer compartment, and so keeps the box air cold. Note that the cool air in the refrigerator or freezer is still warmer than the refrigerant in the evaporator. Refrigerant leaves the evaporator, now fully vaporized and slightly heated, and returns to the compressor inlet to continue the cycle.

  5. Defrosting (refrigeration) - Wikipedia

    en.wikipedia.org/wiki/Defrosting_(refrigeration)

    In refrigerators, defrosting (or thawing) is the removal of frost and ice. A defrosting procedure is generally performed periodically on refrigerators and freezers to maintain their operating efficiency. Over time, as the door is opened and closed, letting in new air, water vapour from the air condenses on the cooling elements within the cabinet.

  6. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    An air conditioner requires work to cool a living space, moving heat from the interior being cooled (the heat source) to the outdoors (the heat sink). Similarly, a refrigerator moves heat from inside the cold icebox (the heat source) to the warmer room-temperature air of the kitchen (the heat sink).

  7. 9 Items You Should Actually Store In The Freezer, According ...

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    “A home freezer is not ideal for extremely long-term preservation because most modern freezers go through a daily defrost cycle to prevent the buildup of ice. ... and their peers tend to last up ...

  8. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...

  9. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    The Fridge Gate method is a theoretical application of using a single logic gate to drive a refrigerator in the most energy efficient way possible without violating the laws of thermodynamics. It operates on the fact that there are two energy states in which a particle can exist: the ground state and the excited state.