The purpose of an air conditioner is to eliminate heat from your home and give you a cool and relaxed atmosphere indoors. Air conditioners are used extensively during the spring and summer seasons. It is better to understand the significant components of this system to undertake corrective maintenance if you face any problems. So, what are some of the important air conditioner parts and their functions you should know? 


The compressor forms the central part of the air conditioning system. It is used to pressurize the refrigerant to raise its temperature. When the compressor absorbs heat, the refrigerant is in a gaseous state, and as the refrigerant passes through the compressor, it is heated even more. It is heated to get a higher temperature than the outdoor temperature. This process helps the air conditioner to cool down the warm air, thereby cooling your room.

Condenser Coil

The condenser coil is attached to a fan and is present in the outdoor air conditioning unit. The refrigerant travels from the compressor to the condenser, and it takes out the heat collected from your home. The fan cools down the gas and converts it into a liquid form. As the refrigerant cools down, it circulates back inside to collect more heat in the evaporator coil.

Evaporator Coil

The evaporator coil is an indoor air conditioner part located near the blower. Through the evaporator coil, the air conditioner picks up the heat from the inside of your home. Also, the liquid that moves from the condenser coil travels back to the evaporator coil through small pipes. Due to low pressure, the liquid is again converted into a gaseous state. The evaporator coil is used to extract heat and humidity from the air using the refrigerant running through the coil.

Blowing Unit and Air Handler

The blowing unit and air handler are responsible for the equal distribution of cool air into your entire residence. Both of these components work in a systematic cycle. They provide an inlet and pull in the warm air into the air conditioner and pass out the cool air back into the room.


Every air conditioning unit comes with a filter. It helps to keep the dust and the dirt of the air from getting into the central unit. Even though the system can function without an air filter, dust and dirt can get collected on these components and cause significant damage. The air conditioner filters are essential in maintaining the overall life of your air conditioning system.


The thermostat performs one of the primary duties among the air conditioner parts. It controls the system’s temperature and is in charge of reading the indoor temperature and telling the air conditioner when to turn it on and off. Unless you do not have the right temperature, the air conditioner units will not function properly. You can adjust the temperature as per your requirement. The higher the thermostat setting, the lower will be your energy bills.

A lot of work goes into keeping your home cool. Preventive maintenance at regular intervals is the best way to ensure your air conditioner parts are working at optimum productivity. If you need assistance with the same, you can contact the air conditioner experts at Capital Plumbing and Heating.