How to Clean Air Conditioner Coils

The cleanliness of the coils determines the performance of your AC. If clean, the machine can run at its utmost efficiency as the air can flow smoothly. In the long run, always keeping your coils clean may also prolong the life of your AC.

But due to their location, you might be wondering how to reach and clean your AC coils. So here is our complete guide on how to clean AC coils.

How to Reach Your AC Coils

Clean Air Conditioner CoilsThere are coils in both indoor and outdoor units. Both should have an access panel that you can open using a screwdriver. If you still have the manual, you might find instructions on how to expose the coils in order to clean them.

How to Clean the Coils

There are many methods for cleaning your AC coils. Each one uses different tools, but all are equally effective. You can choose the one you find most convenient. Here are the recommended methods:

1. Brush

A brush with metal bristles can damage the fins on the coil, so make sure to use a medium bristle. When you find a speck of dirt that is hard to remove, try scrubbing for a little longer. If that doesn’t work, try using other methods, but never use a metal or rough bristle.

2. Air Compressor

Blowing your coils with compressed air is a good idea if you have the tool for it. Start the process from the cleaner side and work your way to the dirtier one. Remember to not point your air compressor into the ductwork system. For tough dirt, put your air compressor closer to the side of the dirt for more pressure.

3. Regular Detergent

If you want to wash it wet, a mild regular detergent could be the easiest option. Just mix it with warm water and pour it in a hand-spray bottle. Spray the solution on the coils and leave it for a few minutes. The solution will bind the dirt so you can just wipe it off using a soft cloth. For stubborn dirt, you can re-spray several times until it is eventually bound, and then wipe it off.

4. Special Cleaner

Instead of using your daily detergent, you can find a special cleaner specifically manufactured for AC coil cleaning. To use the cleaner, simply spray it on the coils, and you will see foam building up. The foam will bind the dirt and drain itself away. For harder-to-remove dirt, you can reapply the spray foam.

5. Heavy-Duty Cleaner

If the dirt on your coils is too hard to remove using the home techniques mentioned above, then you need professional help. A certified HVAC service company has more advanced equipment and stronger chemicals to deal with your AC. However, this won’t normally be the case if you clean up your AC coils regularly.

How Often Should You Do It?

There is no specific rule for how often you should clean air conditioner coils. This depends on how fast the dirt accumulates on your coils. If your coils get dirty very quickly, you might need to clean them every 3 months. But if it is rather clean, doing it once every 6-12 months might be fine.

It is vital to keep your AC clean, including the coils. If you are too lazy to clean it yourself, you can hire an HVAC company to deal with this matter for you.

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