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Evaporator coils help regulate airflow and modify air temperature
The evaporator coil is located right beside the air conditioning unit, but it is barely noticeable. You can look at it from the outside of your window. Now since it is exposed to the environment, it is susceptible to a fair bit of wear and tear. One must always make it a point to check the coil during any repair visits. Replacing the coil can also vastly improve the airflow and circulation in the home.
Maintaining and replacing an evaporation coil is a good practice, because it is the difference between just plain air and cold air. Yes, without it, you'd probably be getting just hot air. Coils also help improve the overall performance of the air conditioner. It is also directly affected by the state of the refrigerant as they both work in coordination. The air filter also needs to be cleaned around the air duct to allow for smooth functioning of the evaporator. By regularly changing or servicing your filter, you can be assured that your entire system will function flawlessly.