Many refrigerator repairs could easily have been prevented or performed by the owner or user of the equipment. The varieties of complications are normally triggered by not knowing precisely how the equipment functions. By recognizing the activity of heat the majority of troubles can be understood.
If coolers help make items cold then why not look at the motion of cold? We cannot do that given that “cold” does not exist. It is just the absence of warmth. We can not actually put cold in something; we can only remove the warmth out of it. So knowing the movement of heat is imperative.
Heat flows from an area of more heat to an area of less heat. This is the base of all types of refrigeration. If you set hot food in a fridge, the warmth will move out of it. If you place frozen food in a fridge, heat will shift into it triggering it to defrost.
For this instance, there is a surplus of warmth in the product to be cooled. Let’s say the food item is room temp at 70 degrees Fahrenheit. The warmth flows within the air in the fridge that is 38 degrees Fahrenheit.
The
evaporator coil is the component that becomes cold inside the box. It is typically 10 degrees cooler than the air inside the box. So the heat flows from the air into the refrigerant (freon) in the coil. The objective of the fan is to help keep the air shifting over the coil so the warmth will come into contact with it.
The compressor boosts the pressure and temperature of the refrigerant so the warmth can retain moving. The temperature of the refrigerant is generally 20 degrees greater than the surrounding air. The heat flows out of the condenser coils and into the air. This is the warmth you may feel coming off of refrigeration coils. It is the warmth from the heat extracted from inside the box plus a bit extra added in by the task of the compressor.
The heat may be followed through the air conditioner in the same manner. It is soaked up via the evaporator in the air handler. It goes via the refrigerant and is declined by the condenser coils in the outside unit. Central air conditioning is a form of high-temperature refrigeration.
The demand for refrigerator
repairs arises when the action of heat is blocked. Then the box is too warm.
A faulty evaporator fan motor, grimy evaporator coils or an overfilled box keep the warmth from getting to the evaporator coils.
A leak indicates there is insufficient refrigerant to transport the heat. A poor compressor or thermostat indicates the refrigerant is not moved throughout the circuit.
A dirty condenser or faulty condenser fan motor prevents adequate air from moving to absorb the warmth. Because heat flows from places of more to less, hot encircling air renders it more challenging for the warmth to move throughout it. This is the reason why your air conditioner functions better on mild days that on very hot ones.
By figuring out precisely where the heat is having a problem moving, you usually have identified the problem. Refrigerator repair services are a lot easier with this perspective. The following step is to understand what the unit is supposed to be doing.