How To Clean AC Coils Inside A House

Air conditioners are amazing. Only a few things beat that cool feel and premium comfort it gives. And this is the fundamental reason why finding out how to clean AC coils inside a house is important.

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Sometimes your air conditioner stops working as efficiently as it used to, or it even stops working altogether.

This could be as a result of a problem with the coil of the air conditioner. Air conditioning coils are very important because when these coils get dirty it could lead to damage of the air conditioner. Here’s more.

Why Is It Necessary To Clean Air Conditioning (AC) Coils?

Air conditioning coils are very important because they help in the transfer of heat around the air conditioner and to the environment too. There are two main types of air conditioning coils.

The Evaporator coils and the condenser coil. These two types of coils are made of copper and play different roles in heat transfer.

The evaporator coils help to capture heat from the inside of your home while the condenser coils, on the other hand, release the heat that has been captured into the air around the outdoor unit of the air conditioner.

The way air conditioner coils are set up, the coil fins are usually really close together and as it gets used overtime it is almost certain that dust and debris would build up and this affects the performance of your air conditioner.

The process of heat transfer definitely would not go on smoothly with dirty coils .

 Dirty evaporator coils can cause problems such as:

  • Decreased transfer of heat
  • An increased consumption of energy : in a bid to constantly produce at its maximum, there would be an increase in the consumption of energy.
  • Elevated pressure and temperature
  • Increased build up of ice on the coil
  • A reduced cooling capacity
  • Damage due to an increased wear on the system: dirty coils cause an increased work load on the air conditioner which would eventually lead to a shortening of the actual working span of this air conditioning system.

How To Clean AC Coils In The House

To start you would need to get entry into the unit. The access panel can be removed to expose the coils.

If you are having any struggles getting to the coils you can peruse the owner’s manual. Ensure the AC unit is off before you begin cleaning. And using a screwdriver, loosen the screws of the access panels.

Now about the actual cleaning….

Using Compressed Air

Compressed air is used when there is very little dirt on the coils. With a canister positioned in about 90 degrees you can blow off dirt from the air conditioning coil.

There should be a consistent flow of air into the coils for best performance as this prevents the dirt from going further into the fins which would make it a lot harder to remove.

As air is involved, it is best you protect your eyes from any dirt that could fly around.

Using A Brush

Your choice of brush is very important as a soft brush is indicated. Hard brushes have the tendency to damage the fins of the coils.

Here, you use the brush on the coil to remove whatever dirt or debris is present.

Unlike when you use air, with the brush you clearly control the pressure at which you clean up the coil. Also, for tougher dirt, you can gently scrub the coils with the brush.

Using Commercial Cleaners

To clean an AC unit there would definitely be a thousand and one commercial cleaners. It is up to you to select which one you want.

Make sure you follow the instructions strictly. Apply until your AC coil is dirt free.

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Using Mild Detergents And Water

A lot of us have preferences and of course it would not be a surprise if some people would not want to buy commercial cleaners and use them to clean you AC coils.

In the event that this happens, you can simply use a mild detergent and water. This mixture of detergent and warm water should be put in a bottle and sprayed on the coils.

Allow the mixture to soak for a few minutes. Soaking helps to loosen the materials that would have gotten stuck in the coils. After that, you can use a brush to remove these materials.

Heavy-Duty Cleaning

Heavy duty cleaning becomes a necessity when there is very serious dirt on the air conditioning coils.

In this case compressed air, brushes or the water detergent mixture would not work. Serious work needs to be done with the use of high level chemicals and equipments.

We recommend that you bring in professionals to do this heavy cleaning. And you’ll know that your AC coils need heavy duty cleaning if you have done what you can and the coils still look dirty.

In conclusion, air conditioning coils should be checked regularly and cleaned as soon as an accumulation of dirt is noticed.

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