How to Clean Air Conditioner Aluminum Coils

Cleaning the aluminum coils of your air conditioner is an important maintenance task that should be done at least once a year. Over time, the aluminum coils can collect dirt, debris, and other contaminants that can reduce the efficiency of your AC unit and even cause it to malfunction. By following these simple steps, you can keep your air conditioner running smoothly and extend its lifespan.

Step 1: Turn off the power

Before starting any maintenance work on your air conditioner, it is important to turn off the power to the unit. You can do this by flipping the circuit breaker switch that controls the AC unit. This will help you avoid any electrical accidents while you are working on your air conditioner.

Step 2: Remove the outer cover

Once you have turned off the power to your air conditioner, you can remove the outer cover to access the aluminum coils. Depending on the model of your AC unit, this may require a screwdriver or other tools. It is important to be careful when removing the cover to avoid damaging any of the components inside.

Step 3: Clean the coils

Use a soft brush or vacuum cleaner to remove any dirt or debris from the aluminum coils. Be careful not to damage the fins on the coils, as this can also affect the performance of your air conditioner. If the coils are heavily soiled, you may need to use a coil cleaner solution to dissolve the buildup before brushing or vacuuming.

Step 4: Apply a coil cleaner solution

Apply a coil cleaner solution to the aluminum coils according to the manufacturer's instructions. Be sure to wear gloves and eye protection when handling the cleaner, as some solutions can be caustic or otherwise harmful. This step is important to ensure that all the dirt and debris are removed from the coils.

Step 5: Allow the cleaner to sit on the coils

Allow the cleaner to sit on the aluminum coils for the recommended amount of time. This can vary depending on the type of cleaner you are using and the level of buildup on the coils. It is important to follow the manufacturer's instructions to avoid any damage to your air conditioner.

Step 6: Rinse the coils thoroughly with water

Rinse the aluminum coils thoroughly with water. Use a gentle stream of water to avoid damaging the fins, and make sure all of the cleaner is removed from the coils. This step is important to ensure that no residue is left behind on the coils that could cause further buildup.

Step 7: Allow the coils to dry completely

Allow the aluminum coils to dry completely before replacing the cover and turning the power back on. Depending on the temperature and humidity of your location, this can take anywhere from a few hours to a full day. It is important to make sure that the coils are completely dry before turning the power back on to avoid any electrical accidents.

By following these steps, you can help keep your air conditioner running efficiently and extend its lifespan. Regular maintenance of your AC unit, including cleaning the aluminum coils, can save you money on energy bills and prevent costly repairs down the line.