AC Service: How to clean AC on your own at home; a step-by-step guide

As the hot summer weather approaches, it's important to ensure that your air conditioner (AC) is operating efficiently. Regular maintenance and cleaning can extend the lifespan of your AC unit and enhance its performance. Below is a detailed guide on how to perform self-service and clean your AC at home, which can save you time and money.

Steps to clean and self service AC at home

Collect the required supplies before beginning

• Vacuum cleaner equipped with a brush attachment
• Soft brush or cloth
• Fin comb
• Water and mild detergent
• Spray bottle
• Screwdriver
• Gloves and mask are optional

Turn Off the AC

Prioritise safety! Before cleaning your AC, deactivate the power supply from the main circuit breaker to prevent accidents.

Clean the Filters

Begin by removing the front panel of the AC unit to access the air filters. Carefully detach the filters and clean them using a vacuum cleaner or by rinsing them under running water. Ensure the filters are completely dry before reinstalling them back into the unit.

Clean the Condenser Coils

Proceed by identifying the condenser coils, typically situated on the outdoor unit of the AC. Employ a soft brush or cloth to eliminate dirt, debris, and leaves from the coils. Ensure to handle it with care to prevent any damage to the fins.


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Straighten Bent Fins

Examine the fins on the outdoor unit for any signs of bending. Use a fin comb to gently straighten any bent fins, which helps to optimise airflow and improve cooling efficiency.

Clear the Drainage Line

Inspect the drainage line for any obstructions or blockages. Use a combination of water and mild detergent to flush out accumulated dirt and algae. Alternatively, employ a wet/dry vacuum to remove any debris from the drainage line.

Clean the Evaporator Coils

Carefully remove the access panel on the indoor unit to reach the evaporator coils. Use a soft brush or cloth to delicately clean the coils. Avoid using strong chemicals that could potentially harm the coils.

Check Refrigerant Levels

While cleaning, examine the refrigerant lines for any signs of leaks or damage. If you detect any problems, it's advisable to contact a professional technician for repairs.

Reassemble and Test

After completing the cleaning and ensuring everything is dry, reassemble the AC unit and restore power from the main circuit breaker. Turn on the AC and allow it to run for a few minutes to confirm that everything is functioning properly.


Routine maintenance and cleaning of your AC unit are crucial to maintain peak performance and energy efficiency, particularly in the sweltering summer season. By adhering to these straightforward DIY procedures, you can sustain smooth operation of your AC and prevent expensive repairs. However, if you encounter significant issues or uncertainties during the process, it's advisable to consult a professional technician. Keep cool and enjoy comfort throughout the summer with a properly maintained air conditioner.


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