June 24, 2024

How to Clean Coils On AC Unit Inside

Back view of male in dark gray t-shirt holding an air conditioner panel providing hvac repair

To clean the coils inside your AC unit, start by turning off the power. Access the coils by removing any covers or panels, then inspect them for dirt and debris. Gently vacuum away loose debris using a soft-bristled attachment, careful not to damage the coils. For stubborn buildup, use a coil cleaner following the manufacturer’s instructions, and rinse thoroughly with water afterward.

Allow the coils to dry completely before reassembling the unit and restoring power. Regular cleaning of the coils helps maintain efficiency and prolongs the lifespan of your AC unit, reducing the need for frequent AC repairs and ensuring reliable cooling performance. Here’s a step-by-step guide on how to clean the coils on your AC unit inside.

Tools Needed for Cleaning AC Coils

Before you start cleaning the AC coils, gather the following tools:

  • Coil cleaning brush
  • Vacuum cleaner with brush attachment
  • Fin comb
  • Coil cleaner solution
  • Safety goggles and gloves

Step-by-Step Guide to Cleaning AC Coils

1. Prepare the AC unit: Start by turning off the AC unit’s power. This can usually be done by flipping the corresponding switch on the electrical panel or by unplugging the unit.

2. Disconnect the power: Next, disconnect the power to the AC unit. This is necessary to prevent any accidents or injuries during the cleaning process.

3. Clean the exterior of the unit: Before accessing the coils, clean the exterior of the AC unit using a soft cloth or sponge and a mild detergent. This will remove any dirt or dust that has accumulated on the surface.

4. Remove the coil cover: Remove any covers or panels that are blocking access to the coils. These can usually be unscrewed or unlatched with a screwdriver or a wrench. Note how the covers or panels are attached so you can quickly put them back later.

5. Clean the coils: Inspect the coils for dirt, dust, and debris. Use a vacuum cleaner with a brush attachment to gently remove any loose debris from the coils. Be careful not to apply too much pressure or use a brush with stiff bristles, which can damage the coils.

If the coils have stubborn buildup, use a coil cleaner solution. Follow the manufacturer’s instructions on how to apply the solution. Typically, you must spray or brush the solution onto the coils and let it sit for a few minutes to dissolve the buildup.

Once the coils are clean, allow them to dry completely. This is important to prevent moisture from damaging the AC unit. To expedite the drying process, you can use a soft cloth or allow natural air circulation.

Common Mistakes to Avoid When Cleaning AC Coils

Using harsh cleaning chemicals: Avoid using harsh or abrasive cleaning chemicals when cleaning the AC coils, as these can damage the delicate fins and coils.

Applying too much pressure: Be gentle when cleaning the coils to avoid bending or damaging the fins. Applying too much pressure can hinder the AC unit’s performance.

Neglecting to remove debris from the surrounding area: Before and after cleaning the coils, remove any debris or obstructions from the surrounding area. This will prevent the debris from entering the unit and potentially causing damage.

Not allowing the coils to dry properly: Ensure the coils are completely dry before reassembling the unit and restoring the power. Damp coils can lead to mold growth and other issues.

Not using the correct cleaning technique for the type of coils: Different types of AC coils require specific cleaning techniques. Refer to the manufacturer’s guidelines or consult a professional if you are unsure about the cleaning method for your particular AC unit.

Precautions to Take Before Cleaning AC Coils

Before cleaning the AC coils, take the following precautions:

  • Ensure the AC unit’s power is turned off and disconnected.
  • Wear safety goggles and gloves to protect your eyes and hands.
  • Place a plastic sheet or tarp underneath the AC unit to catch any water or debris that may fall during cleaning.

Why Cleaning AC Coils is Important

Cleaning AC coils is vital for several reasons:

  • Improved efficiency: Clean coils allow for better heat transfer, improving cooling efficiency and reducing energy consumption.
  • Prolonged lifespan: Regular cleaning helps prevent premature wear and tear on the AC unit, prolonging its lifespan.
  • Reduced maintenance costs: Keeping the coils clean can minimize the need for costly repairs or replacements.
  • Better air quality: Clean coils help prevent the circulation of dust, allergens, and other pollutants in the air, promoting better indoor air quality.

Related Posts

See all related posts:
hvac unit outside

What Does an AC Condenser Do?

The AC condenser is crucial to your air conditioning system’s cooling process. Its primary function is to release heat from the refrigerant gas compressed by

Read More
how many watts does a window ac use (1)

How Long Can AC Run Continuously

When the scorching heat of summer arrives, an air conditioning (AC) unit becomes a savior, providing excellent and comfortable indoor temperatures. However, have you ever

Read More