We’ll teach you how to clean split AC step by step in this guide. In truth, there are numerous advantages to properly cleaning an air conditioner.

Periodic maintenance of split air conditioners comprises a series of operations on the exterior motor, internal splits, and air filters. It maintains higher hygiene in your home and the best yield, both in terms of performance and energy efficiency, of the household appliance.

How to Clean Split AC

It is necessary to reduce indoor pollution and always have clean air in the house. During regular operation of a split air conditioner, dust and dirt accumulate, which, if not removed, will be spread in the environment by the appliance itself.

Furthermore, because of the condensation that accumulates inside the appliance, there is a possibility of mold formation and the proliferation of germs, both of which can create health concerns, as we all know.

But the advantages don’t stop there. A sterilized and clean air conditioner lasts longer and uses less energy.

With this tutorial, you will discover how to clean your air conditioner without hiring a technician. You will understand when to do it so that it is always precise throughout the year, and you will be aware of all the essential operations in detail (from cleaning of the split to the filter and vents).

Things you will need to clean the air conditioner

In order to properly clean your air conditioner, you will need:

  • A screwdriver (either a flathead or Phillips): A screwdriver (either a flathead or Phillips) is one of the most basic and essential tools that every homeowner should have. This simple tool can be used for unscrewing and screwing the front panel of the split AC.
  • A vacuum with a hose attachment: Dust, dirt, and other airborne particles can build up on the coils and fins of your AC unit, causing it to work less efficiently and eventually leading to problems. A good vacuuming with a hose attachment can remove all this build-up and help keep your AC unit working properly.
  • An AC cleaning brush: AC cleaning brush can be used to clean the surface of various materials, including AC condenser coils and other difficult-to-reach areas. The long handle and ergonomic design make it easy to use and efficient. The bristles are made of high-quality nylon, which is tough and durable. They can reach into small spaces and corners to remove dirt, dust, and grime. The brush head is also detachable for easy cleaning.
  • Cleaning cloth: The cleaning cloth for split ac is made of high-quality microfiber, which can absorb the dust and dirt on the surface of the air conditioner quickly and easily. In addition, it is also very effective in removing the stubborn stains. Moreover, this cleaning cloth is also very gentle on the surface of the air conditioner, so it will not scratch or damage the surface.
  • Step ladder: Also called an extension ladder, this is the most common ladder type since it can be used for a variety of tasks such as painting or cleaning. When choosing a step ladder, make sure it’s the right height for the job and that the steps are sturdy enough to support your weight.
  • AC cleaning foam: AC cleaning foam is a cleaning agent specifically designed to clean the 1 ton, 1.5 ton, and 2 ton split AC. It is usually in the form of a spray and can be applied directly to the coils, fins, and other parts of the air conditioner. AC cleaning foam can also be used to clean other household appliances such as refrigerators and freezers.
  • AC coil cleaning spray: AC coil cleaning spray is a product that is used to clean the coils of an air conditioner. This product is available in aerosol cans and can be sprayed directly onto the coils. The AC coil cleaning spray will remove any dirt, dust, or debris that may be stuck to the coils. This product is safe to use on all types of air conditioners.
  • Gloves: A good pair of gloves will protect your hands from the chemicals and cleaners that you will be using.

Steps to Clean Split AC (DIY Guide):

The cleaning procedures below apply to any air conditioner for the home with one or more internal splits and exterior motors.

  • We recommend that you utilize the instruction manual to quickly identify the position of the parts of interest and the proper manner to handle them so as not to damage the components, especially if this is your first time.
  • The handbook provided at the time of purchase clearly states how to open, disassemble, and reassemble the various pieces. You will most likely discover a section dedicated to maintenance.
  • Finally, ensure the air conditioner is turned off, and all power switches are turned off before beginning the cleaning process.

How To Clean Split AC Indoor Unit?

Cleaning Split AC Indoor Unit

Follow these steps, possibly with the help of the instruction manual, to clean the interior of the split:

  • Remove/raise the split’s exterior plastic cover and place a bag around the split ac unit to help you gather dust and debris. Special bags, designed specifically for this purpose, are available for purchase. However, if nothing else is available, a basic plastic shopping bag can be used.
  • Remove the air filters from your 2 ton, 1.5 ton, or 1 ton split ac and clean them. To know more about cleaning them, read our guide below.
  • Using a vacuum cleaner or electric broom with a crevice nozzle or equivalent, remove the superficial debris accumulated on the cooling fins and coils (dust, pollen, and any other dirt).
  • Eliminate the embedded and difficult-to-remove grime with a damp or dry cloth and a non-aggressive detergent.
  • You can also use a chemical disinfectant or natural products like white vinegar or tea tree oil.
  • Spray an antifungal cleaner on the coils to prevent mold. Use a bottle of antifungal cleaner to disinfect the back of your air conditioner, which is where toxins are most likely to grow. This cleaner helps prevent spores and toxic particles from growing in your device. Wait at least 5 minutes for the cleaner to set before replacing the air filters.
  • Re-install the air filters once they are clean and dry.
  • Turn your split air conditioner back on to make sure everything is working.

How To Clean Split AC Filter?

Cleaning Split AC Filter

Use the instruction booklet to figure out where the air conditioner filters are located and how to remove them properly.

  • Remove the filter (or filters) with care to ensure they do not become damaged.
  • If you have allergies or any other respiratory problems, protect yourself because these components might hold mites, bacteria, and other irritants.
  • Wash and degrease the filters with warm water (not exceeding 40°) and soap (or a natural solution).
  • Next, rinse the filters properly to remove the dirt and soap.
  • Dab them gently with a dry cloth and hang them to dry in the open air, avoiding direct sunlight. It’s best to dry them in a confined setting so that they don’t get dirty again.
  • Disinfect the filters with a product that is appropriate for the job.
  • Return the air filters to their original position once you are sure they are clean and dry. They should fit easily but be sure to check your owner’s manual if you have any difficulty with the assembly process. These fresh air filters will give you the guarantee that only clean, fresh air will pass through your air conditioner.

When & How To Replace AC Filters?

Changing the air conditioner filters regularly is necessary for the device’s proper operation and the ability to breathe healthy air indoors. For the most recent generation of air conditioners, there are three types of filters:

  • Dust filter: This is good at removing smog, pollen, and dust. It can also be replaced every two to three years if cleaned often (at least once every three months).
  • Activated carbon filter: This filter comprises a layer of activated carbon that absorbs organic compounds that cause odors and allergens in the home. It should be replaced every six months.
  • Photocatalytic filter: This filter cleans ninety-nine percent of the air by removing germs, spores, and viruses, dissolving nitrate oxides associated with smog or solid odors. It also eliminates nitrogen oxides and hydrocarbons, such as cigarette smoking. Generally, 1 or 1.5 ton split ac has this type of filter, you should consider replacing it every year.

Follow the disassembly and assembly procedures previously illustrated to change the air conditioner filters appropriately. If you need to replace your old filters, check for the types that fit your appliance or, better yet, are universally compatible alternatives.

How To Clean Split AC Drain Pipe?

If your split AC unit is not draining properly, it is likely that the drain pipe is blocked. In this article, we will show you how to clean a split AC drain pipe so that it can function properly again.

First, locate the drain pipe on your split AC unit. It is usually located near the bottom of the unit. Once you have found it, disconnect it from the unit.

Next, use a brush or other suitable tool to clean out any debris or dirt that may be blocking the pipe. Be sure to brush away any residue that may be clinging to the sides of the pipe.

Finally, reattach the drain pipe to the unit and turn on the power. Your split AC unit should now be draining properly. If it is still not draining properly, you may need to call a professional for further assistance.

How To Clean Split AC Outdoor Unit?

Cleaning Split AC Outdoor Unit

By following these steps, you can easily clean the outdoor unit of your split AC and keep it running efficiently. Regular cleaning will prolong the life of your air conditioner and help it to run more efficiently.

  • Start by disconnecting the power to the air conditioner. You can do this by pulling the plug from the outlet or flipping the switch in your fuse box.
  • Next, remove the outer casing of the AC unit. This will give you access to the coils and other components that need to be cleaned.
  • Using a soft brush or cloth, gently clean the coils on the outdoor unit. Be careful not to bend or damage them.
  • Use a hose to rinse away any dirt or debris that is clinging to the coils.
  • Once the coils are clean, replace the outer casing and reconnect the power to the unit.
  • Turn on the air conditioner and check that it is running properly.

AC Cleaning Do’s and Don’ts

It’s important to keep your AC clean in order to prevent it from working harder than necessary and potentially breaking down. Here are some do’s and don’ts for cleaning your AC unit:


  • Vacuum the coils and fins monthly with a soft brush attachment. This will improve efficiency and prevent the unit from overworking itself.
  • Dust your AC unit regularly. This will help keep it clean and prevent build-up of dirt and debris.
  • Wipe down the housing of the unit with a damp cloth
  • Change your AC filter regularly. This will ensure that your unit is able to breathe properly and function at its best.


  • Use harsh chemicals or cleaners on any part of the AC unit, as this could damage it
  • Pressure wash the AC unit, as this can also damage it
  • Neglect your AC unit. This will lead to build-up of dirt and debris, which can eventually damage the unit.
  • Ignore strange noises coming from your AC unit. This could be a sign of a serious problem that needs to be fixed immediately.

If you follow these simple tips, you’ll help keep your AC unit clean and working properly for years to come.

Frequently Asked Questions About Cleaning Split Air Conditioners:

1. Why it is important to clean the air conditioner?

It is important to clean the air conditioner because if we don’t, the air conditioner will become a breeding ground for bacteria and other microorganisms. These microorganisms can cause respiratory infections and other illnesses. Additionally, a dirty air conditioner will not be as effective in cooling your home or office, and it will use more energy, which will increase your utility bills. Finally, a dirty air conditioner can shorten its lifespan and lead to costly repairs.

2. Can we wash AC outdoor unit with water?

Yes, you can wash your AC outdoor unit with water. Just be sure to use a mild soap and avoid using too much pressure, as this could damage the unit. Also, make sure that the unit is completely dry before you turn it back on.

3. How to clean inside AC unit?

To clean your AC unit inside, start by turning off the power and removing the front panel. Next, use a vacuum with a hose attachment to suck up any dust or debris from the coils and blower fan. Once everything is clean, place the front panel and turn the power back on. Your AC unit should now be working like new.

4. How to clean outside AC unit with water hose?

To clean the outside unit with a water hose, start by disconnecting the power to the unit. Next, use a garden hose to spray down the entire unit, paying special attention to the coils. Once you have finished cleaning the unit, reconnect the power and turn it on.

5. Is it necessary to clean AC outdoor unit?

Yes, it is necessary to clean the outdoor AC unit on a regular basis. Leaves, dirt, and other debris can build up on the unit and affect its performance. Additionally, a build-up of dirt and debris can also lead to premature wear and tear on the unit.

6. How often should split AC be serviced?

To ensure that your split AC unit is working efficiently and effectively, it is recommended to have it serviced at least once a year. This will help to prevent any potential issues from arising and also allow for any necessary repairs or maintenance to be carried out. Having your split AC unit serviced regularly will also prolong its lifespan, ensuring that you get the most out of your investment.

7. Can I clean my AC by myself?

Yes, you can absolutely clean your AC by yourself. However, we highly recommend that you hire a professional to do so. They will have the proper equipment and knowledge to get the job done quickly and efficiently. If you do decide to clean your AC by yourself, be sure to turn off the power before beginning and use caution when handling the unit.

8. Can I use vinegar to clean AC coils?

Yes, you can use vinegar to clean AC coils. Simply mix equal parts vinegar and water in a spray bottle and mist the coils with the solution. Let the vinegar sit for a few minutes before wiping it away with a clean cloth. You may need to repeat this process a few times to remove all the dirt and grime.

9. How do I make my own AC cleaner?

You can make your own AC cleaner by using a few simple ingredients that you likely have around your home. First, mix one part white vinegar with one part water in a spray bottle. Then, add a few drops of essential oil to the mixture (optional). Next, use a clean cloth to wipe down the inside of your AC unit, being sure to get rid of any dirt or dust build-up. Finally, spray the AC cleaner mixture onto the cloth and wipe down the unit again. This will help keep your AC unit clean and free of harmful build-up.

10. What is the best thing to clean AC coils with?

AC coils are best cleaned with a solution of 50% water and 50% vinegar. Apply the solution to the coils with a brush or sprayer, and then rinse thoroughly with clean water. For more stubborn dirt and grime, you may need to use a stronger cleaning solution, such as one made with 90% water and 10% vinegar. Repeat the cleaning process as needed until the coils are clean.


Thanks for reading our guide on how to clean split ac units! We hope you found it helpful. If you have any questions, feel free to ask us in the comments section below. We’ll be happy to help out however we can. And don’t forget to share this post with your friends and family – they may find it useful too!