top of page

A Complete Guide to Condenser Coil Cleaning

Coil Cleaning

Air conditioning is a necessity during the hot summer months, not only to cool a space but also to remove the excess heat from the house. However, the continuous use of air conditioning systems can result in the accumulation of dirt, debris, and other contaminants in the condenser coils, which can reduce the efficiency of the system. Cleaning the condenser coils is crucial to ensure that the AC runs at its optimal performance, as dirty coils trap heat and put more pressure on the system, leading to higher energy consumption.

In this article, we will provide you with comprehensive information on condenser coil cleaning, including what it involves and why it is essential.

What are Condenser Coils?

Condenser coils are one of the two coils present in a cooling system, located outside your home in the condensing unit. These coils are responsible to complete the heat exchange cycle that involves refrigerant in the system turning into a gas and collecting heat from inside your home. Condenser coils provide a route for heat to travel and transfer into the air that is blown over the coils, cooling the refrigerant so it turns back to liquid which is then sent back into your home.

Why is Condenser Coil Cleaning Important?

As mentioned earlier, condenser coils are located in the outdoor condensing unit that get coated with dirt and debris over time, making it difficult for the coil to transfer heat to the outside air. Note that if you do not prioritize condenser coil cleaning, your air conditioner is likely to work harder and consume more energy than it would normally do while simultaneously reducing its ability to cool your home. This means you will be paying more for a unit that is barely meeting its maximum efficiency. Additionally, cleaning condenser coils can ensure longevity of you HVAC unit, reduce breakdowns and malfunctions in the middle of summer and decrease excessive strain on its internal components.

How Often Should You Clean the Condenser Coil?

Condenser coil cleaning is an extensive process, which is why it’s often neglected by homeowners. However, if you want your air conditioning to function smoothly, you must clean the condenser coils. If you live in a hot and humid region where air conditioners are used for months, it is essential you clean them at least once or twice a year.

Steps Involved in Condenser Coil Cleaning

Follow these steps to clean your condenser coils:

Step 1: Disconnect the Power

Make sure you disconnect the power while cleaning the coils as it could give you an electric shock. One way to do this is by turning off the circuit breaker that controls the system or unplugging it. Also, ensure that the motors and electrical components are protected from oversaturation to prevent motor and electrical failure.

Step 2: Clean the Debris

Next, with use a soft-bristled brush or a vacuum cleaner with soft brush attachment to remove debris from the surface of condenser coils. Make sure that to clean the coils gently without bending or damaging the fins.

Step 3: Use a Cleaner

After removing the debris, apply coil cleaner, such as foaming, alkaline, or acidic cleaners to the condenser coils. Make sure you follow the manufacturer’s instructions for the specific cleaner you are using. You can also use degreasing chemicals that are efficient in removing heavy oils or grease accumulated on condenser coils.

Step 4: Rinse

Once the coils are cleaned, rinse them thoroughly using a hose with spray attachment. Make sure the pressure isn’t too high as it can damage the coils.

Step 5: Check for Damage

After the coils are clean, check for damages, like bent fins or leaks to ensure they are fixed before turning on the system. If the damages are minimal, you can repair them yourself or call a professional if the job seems difficult.

Step 6: Reassemble

Make sure you reassemble the air conditioning system by replacing any covers or panels that you removed during the cleaning process.


Keeping a clean condenser ensures that your operations are high in efficiency as low efficiency can lead to loss of time, energy, and finances. So, if you want to save money on home cooling, increase the lifespan of your HVAC unit, make sure that you keep your cooling systems clean at all times. Typically, HVAC can deliver a life span of 10 to 20 years but improper condenser coil cleaning can lead to premature failure.

Head to Raleigh Commercial Coil Cleaning and get your condenser coils cleaned frequently to maximize your condensing unit’s efficiency.

4 views0 comments
bottom of page