Lots of refrigerator repairs could easily have been avoided or carried out by the owner or user of the hardware. The types of issues are commonly triggered by not recognizing precisely how the equipment functions. By recognizing the motion of heat the majority of situations can be understood.
If coolers make things cold then why not check out the movement of cold? We can’t do this because “cold” does not actually exist. It is just the lack of heat. We can not actually put cold inside anything; we can merely take the heat from it. Thus recognizing the activity of heat is essential.
Heat moves from an area of added heat to an area of much less heat. This is the basis of all refrigeration. If you place hot food in a refrigerator, the heat will move out of it. If you place frozen food in a refrigerator, heat will shift inside it causing it to defrost.
For this particular example, there is an excess of heat in the item to get cooled. Let’s say the food is room temp at 70 degrees Fahrenheit. The heat energy moves into the air in the fridge which is 38 degrees Fahrenheit.
The
evaporator coil is the component that gets cold within the box. It is typically 10 degrees cooler than the air in the box. So the heat moves from the air right into the refrigerant (freon) in the coil. The purpose of the fan is to keep the air shifting over the coil so the heat energy will come into connection with it.
The compressor increases the pressure and temp of the refrigerant so the heat can keep moving. The temp of the refrigerant is typically 20 degrees above the surrounding air. The heat flows out of the condenser coils and right into the air. This is the heat energy you can feel coming off of refrigeration coils. It is the heat energy from the heat extracted from inside the box and also a bit extra added by the task of the compressor.
The heat can be followed through the air conditioning unit in the same way. It is taken in through the evaporator in the air handler. It travels via the refrigerant and is turned down by the condenser coils in the outside unit. Central air conditioning is a style of high-temperature refrigeration.
The need for refrigerator
repairs takes place whenever the motion of heat is blocked. Then the box is far too hot.
A bad evaporator fan motor, filthy evaporator coils or even an overfilled box prevent the heat from getting to the evaporator coils.
A leak signifies there is insufficient refrigerant to carry the heat. A bad compressor or thermostat signifies the refrigerant is not transferred throughout the circuit.
An unclean condenser or faulty condenser fan motor prevents sufficient air from circulating to absorb the heat. Because heat circulates from locations of more to much less, hot encircling air renders it more difficult for the heat energy to circulate throughout it. That is the reason why your air conditioning unit functions far better on moderate days that on hot ones.
By identifying where the heat is having a problem circulating, you typically have identified the issue. Refrigerator repairs are a lot easier by having this perspective. The following step is to know what the unit is expected to be performing.