How To Clean Your Ac Unit

Maintaining your air conditioning unit is crucial to ensure it runs efficiently and lasts longer. One of the most important aspects of AC maintenance is cleaning. Here’s a step-by-step guide on how to clean your AC unit.

Why Clean Your AC Unit?

Over time, dust, dirt, and debris can accumulate inside your AC unit. This buildup can restrict airflow and cause your unit to work harder, leading to higher energy bills and potential breakdowns. By cleaning your AC unit regularly, you can improve its performance and prolong its lifespan.

What You’ll Need

Before you begin cleaning your AC unit, gather the following tools:

  • Protective gloves and eyewear
  • A stiff-bristled brush
  • A vacuum cleaner with a soft-brush attachment
  • A screwdriver
  • A garden hose with a spray nozzle
  • Cleaning solution (such as a mixture of water and vinegar)

How to Clean Your AC Unit

Follow these simple steps to clean your AC unit:

Step 1: Turn Off the Power

Before you start cleaning your AC unit, turn off the power. This will prevent any accidents or injuries while you’re working on the unit.

Step 2: Remove the Debris

Remove any debris from the exterior of the AC unit, such as leaves, twigs, and grass clippings. Use a brush to gently scrub away any stubborn dirt or grime.

Step 3: Remove the Fan Cage

Using a screwdriver, remove the fan cage from the top of the AC unit. Be careful not to damage the fan blades or wiring.

Step 4: Clean the Fan Blades

Once you’ve removed the fan cage, use a soft-brush attachment on your vacuum cleaner to clean the fan blades. Be gentle to avoid bending or damaging the blades.

Step 5: Clean the Interior

Using your vacuum cleaner, clean the interior of the AC unit, including the evaporator coils and blower compartment. Be sure to remove any dirt or debris that may have accumulated inside.

Step 6: Clean the Condenser Coils

Spray the condenser coils with a cleaning solution, such as a mixture of water and vinegar. Allow the solution to sit for a few minutes, then rinse the coils with a hose using a gentle spray.

Step 7: Reinstall the Fan Cage

Once the coils are dry, reinstall the fan cage using your screwdriver. Be sure to tighten the screws securely.

Step 8: Turn on the Power

After you’ve finished cleaning your AC unit, turn on the power and test the unit to make sure it’s running smoothly.


How often should I clean my AC unit?

It’s recommended that you clean your AC unit at least once a year, preferably before the start of the cooling season.

Can I use a pressure washer to clean my AC unit?

No, you should never use a pressure washer to clean your AC unit, as it can damage the delicate components inside.

Should I hire a professional to clean my AC unit?

While it’s possible to clean your AC unit yourself, it’s always a good idea to hire a professional if you’re not comfortable doing it yourself.


Cleaning your AC unit is an important part of AC maintenance. By following these simple steps and cleaning your unit regularly, you can keep it running efficiently and prolong its lifespan. Remember to turn off the power before you start cleaning, and always wear protective gear to avoid any accidents or injuries.