How to Clean Split AC Coils?

Hello Devayan. I was also looking for methods regarding how to clean AC coils. My split AC was consuming a lot of electricity and I thought of cleaning them myself. I found a DY from the BlueStar website which I will share below. You need to clean the coils of the outdoor and indoor units separately. I used a coil cleaner and advise you to use the same.

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How to Clean AC Coils?

Here is how you can clean the outdoor and indoor unit of your split AC:

Outdoor Unit

1. First off, wear a face mask, gloves and a hair cover to protect yourself.

2. Turn off the AC power supply and unplug it.

3. Check if the outdoor unit is safe to access. 

4. You can use a vacuum cleaner to clean the coils or even be water washed.

5. If you’re using a vacuum cleaner, set it to blower mode and then clean the coil from a distance.

6. If you’re going for a water pressure pump, set the pressure to low and keep a 10-cm distance between the nozzle and the coil.

7. Apply gentle pressure only as the coils are sensitive. Avoid watering the electrical parts.

8. You can also use a bucket of water or a hose in case you don’t have a pressure pump. 

9. Let the unit dry for 30 minutes.

Indoor Unit

1. Open the front panel of the unit and keep it aside.

2. Remove the filters and clean them separately if they are dirty.

3. Buy a coil cleaning solution to clean. Apply the solution to the entire coil in a zig-zag motion. 

4. Let the foam sit for 20 minutes and penetrate the coils. 

5. Attach the filters in position and place the front panel. 

6. Turn on the power supply and set the temperature to 24 degrees.

7. Run the AC for 45-60 minutes to self-clean.

This is how to clean your ac coils. I hope it helps.

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Some related information:

How to Clean Indoor Ac Coils?

AC is a saviour in the hot summer days. We live on the 4th floor of the flat and it is impossible to thrive without AC in summer. We also think that only expert cleaners can clean your AC and not us. In fact most of the people totally ignore the fact that ACs are to be cleaned and leave it until serious problems occur. I too did not know how to clean split ac coils but once I observed what the cleaners did and from then onwards I cleaned it. Let me share with you how.

How to clean AC coils inside?

You can opt for any coil cleaning solution to clean your AC coils or simply make a solution of water and detergent and start cleaning them. Use a low-pressure sprayer to clean it easily after removing the coil.

People often fear removing the coils and want to know how to clean them. Just use a compressed air canister and your work will be done easily. Blow the air into the coil and the dirt will get loosen and fall easily. 

These ways must have given you an idea about how to clean ac evaporator coils inside house easily.

How to clean AC coils outside?

Here are the steps to help you know how can you clean AC coils outside:

• Turn off power to the unit

• You must check the refrigerant pressure

• The outer casing must be removed then

• At first, wash the coil with water

• Spray the coil with cleaning chemicals 

• Wash the coil again in water

• Clean all the dirt from inside the outdoor unit

• Check the refrigerant pressure again and it's done.

These are the ways that answers your question on how to clean split ac coils

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