Keeping A Cool Home: 10 Steps to Maintain Your Air-conditioning Unit

Air Conditioning Unit
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Maintaining your air-conditioning unit will give you a lot of benefits such as saving money and energy. Through cleaning your air-conditioning unit regularly, you’ll be able to extend its lifespan. The essence of regularly cleaning your air-conditioning unit means making sure that it is operating at the highest efficiency level.

The primary purpose of your air-conditioning system is to dissipate heat and help spread cool air around your room.

The compressor of your air-conditioning system removes the heat-laden vapor from the evaporator which helps to cool the air in the inside. Here are ten steps to maintain your air-conditioning unit:

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Step 1: Turn Off the Power

You need to turn off the power and unplug your unit when cleaning to avoid danger from getting electrocuted. The moving parts of the air-conditioning unit might hurt you as well, so turning off the air-conditioning unit is a must.

Step 2: Make Sure to Remove the Debris

An air-conditioning unit is prone to absorb the debris or dust on its interior and exterior side. So you have to remove the fan cage on the exterior compressor or condenser.

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You have to lift out the compressor or condenser away from the air-conditioning unit. Then you can start cleaning the debris or any dirt in the interior using your hand or a vacuum.

Air Conditioning Unit

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Step 3: Clean the Compressor Fins

Clean the compressor fins by first removing the cover from the outside. You can use a brush on cleaning to remove the outside dirt of the compressor fins.

You can spray water on the compressor fins using your hose to clean the inside and remove the dirt thoroughly.

Step 4: Straighten the Fins

The main job of the fins is to help your unit efficiently filter the air to disperse the heat in the place. Thus, bent fins on your air-conditioning system indicate that there’s also a reduction of airflow.

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Fins are usually malleable and you can bend them yourself. However, if you feel any difficulty in bending them, call a professional for help.

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Air Conditioners

Step 5: Clean the Area Around the Unit

You may replace the fan cage of your air-conditioning system after cleaning. Ensure proper airflow of the unit by freeing the condenser of dust and other debris. You have to cut the branches from trees to ensure an adequate flow around the condenser unit.

If you’re not using the air-conditioning unit, you can cover its top with the use of plywood or plastic to avoid the debris from falling in the air-conditioning unit.

Step 6: Level the Unit on Its Pad Properly

The primary use of condenser coil is to liquify a substance from the gas or air to the liquid state through cooling it. It is essential that you put back the condenser unit levelled on its pad.

You should not keep the condenser unit out of level because it will affect the compressor during operation.

Step 7: Clean the Evaporator Coil

The evaporator coil of an air-conditioning unit absorbs the heat from the air in your room. It connects to the furnace.

Together with the condenser coils, they complete the heat exchange process and cooling of refrigerated air. You may use a soft brush or a coil cleaner to clean the evaporator coil.

Step 8: Clean the Plug Evaporator Drain

First off, locate the drain where the evaporator unit of an air-conditioning unit is. When you see that it’s draining slowly, it can be an indication that you have to plug it out and clean it.

Sometimes, algae and mold develop inside the drain resulting in inefficient flow in the plug evaporator.

You can use a vacuum to clear the dirt from the drain. Clean the drain from its top up to its end.

You must put duct tape or a rag and on the drain gap to prevent any leakage during your cleaning session. Then vacuum the whole drain to clean all the dirt on it.

Step 9: Change the Blower filter

The blower filter of your air-conditioning unit helps to reduce the amount of dust in your home. As time passes by, a lot of dust will remain from the inside that you might inhale.

Sites like and other reliable sources on the internet recommend that you change your filters at least twice every 3-6 months.

Step 10: Turn the PowerBack On

After thoroughly cleaning your AC unit, plug it back in and turn it on. When your AC starts, there shouldn’t be any weird noise coming from it.

Also, notice if the AC takes longer than usual to cool  your room. If there are any changes in performance, you might want to call a professional to take a look at your unit.


An air conditioner is essential as it cools and filters the air in your home. Its primary purpose is to give us a comfortable place to live.

Thus, an air-conditioning unit needs regular cleaning to maintain its efficiency. That’s why it is essential to apply the steps mentioned above to help clean your air-conditioning unit.

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Paschal Okafor is NaijaTechGuide Team Lead. The article Keeping A Cool Home: 10 Steps to Maintain Your Air-conditioning Unit was written by NaijaTechGuide Team. The article was last modified: October 13th, 2021
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