Can You Clean AC Coils Yourself?

by | Last updated on January 24, 2024

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Can you clean AC coils yourself? While there are a number of commercially available coil solutions on the market,

air conditioner coils can be cleaned with a solution of a mild household detergent and water

. The detergent and water mix is applied to the coil using a low-pressure sprayer.

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How do you clean AC coils at home?


Mix a detergent with warm water and put it in a spray bottle. Spray evenly on the coils and let the cleaner sit for a few minutes. Then wipe all the grime with a piece of cloth

. In the case of condenser coils, you can rinse with water using a garden hose.

How do you clean AC cooling coils without removing them?

  1. Step 1: Remove the Glove Box.
  2. Step 2: Access the Evaporator Coil.
  3. Step 3: Spray the Cleaner on the Evaporator Coil Through the Access Point.
  4. Step 4: Rinse the Evaporator Coil.
  5. Step 5: Dry the Evaporator Coil.
  6. Step 6: Put Back the Blower Fan or Resistor Block or Seal the Hole You Drilled.
  7. Step 7: Put Back the Glove Box.

Is cleaning AC coils worth it?


It's important to keep the AC coils clean so that heat can exchange efficiently through the coils without being blocked by dirt and debris

. A lack of routine maintenance on the coils can lead to higher energy bills and consumption or an overheating AC system.

How much does it cost to have AC coils cleaned?

It'll cost anywhere from

$100 to $400

to clean your AC coils as a standalone service. For highest system efficiency, get this done every year and up to once per month. Condenser coil cleaning, the one located outside your home, happens during your annual AC tuneup for $75 to $200.

Can I clean my own condenser coils?

While there are a number of commercially available coil cleaning solutions on the market,

air conditioner coils can be cleaned with a solution of a mild household detergent and water

. The detergent and water mix is applied to the coil using a low-pressure sprayer.

Is it OK to spray water on your air conditioner while running?

The good news is that

you absolutely can spray water on your air conditioner if it needs a cleaning, and nothing bad will happen

. Spraying water on your AC's condenser also helps it run more efficiently. In fact, your condenser needs a regular spritzing in order to keep doing a good job.

Can Dirty evaporator coil symptoms?

One thing that will be noticeable when the evaporator coil is dirty is that

your AC won't produce air that's as cold as it should be

. When the heat transfer is reduced, the efficiency of the cooling process is impacted. If it becomes clear that the AC isn't cooling your air, have the evaporator coil inspected.

What can I use to clean my evaporator coil?

Add a few drops of

dishwashing detergent

to a spray bottle filled with distilled water and spray the solution onto the evaporator coil. Allow it to sit for a minute or two and then use your soft bristle brush to gently scrub away any dirt or debris found on the evaporator coil.

How much does it cost to clean evaporator coils?

Evaporator coil cleaning costs

$100 to $400

to clean the coil in-place or $400 to $700 to remove and clean the coil. Condenser coil cleaning costs $75 to $230. Dirty evaporator and condenser coils reduce the AC system's efficiency by up to 30%.

What happens if you don't clean your AC coils?

The short answer. Dirt & grime on AC coils

makes it harder for your equipment to transfer heat

. That means it has to run longer and work harder to do it's job, using more energy and causing parts to wear and break down. Dirty coils also get corroded which leads to refrigerant leaks.

Can I hose down my AC unit?



Yes, you can hose down your ac unit

. In fact, spraying water on your air conditioner to clear dirt and other debris, along with a regular/preventative maintenance plan can help keep your air conditioner unit running more efficiently.

How long before I can turn on AC after coil cleaning?

Make sure the air conditioner is completely dry before attempting to use it. Wait about

30 to 60 minutes

before turning on the AC after cleaning the coils.

What happens if my AC coils are dirty?


Dirt will make your AC less efficient

, which means you'll have higher energy bills each month. Dirt buildup on your AC's coils will make it difficult for the system to absorb and dump heat, causing the system to be less efficient. You may even start to feel like your AC is running constantly.

How long do air conditioner coils last?

For an evaporator coil to live out the fullest extent of its life, the AC unit must be regularly maintained. If proper maintenance is regularly performed, then the evaporator coils should last

10 to 15 years

, which is the ideal lifetime for an evaporator coil and comparable to the lifespan of an AC unit.

How do you clean dusty AC coils?


Using mild detergents and water

.

Mix a simple detergent and warm water in a spray bottle or garden sprayer. Spray the solution onto the evaporator coils and give it a few minutes to soak in and loosen the dirt and debris. Wipe away any loosened material with a soft brush or cloth and reapply as needed.

What are the symptoms of a dirty condenser?

  • Loud and abnormal noises coming from the unit.
  • Significantly reduced cooling capability from the unit.
  • The unit is leaking a noticeable amount of fluid past the typical amount of condensation.

How do I clean my outside AC unit without a hose?

Simply

pull the plug out or flip the switch to the “off” position. Use gloved hands to remove any large pieces of debris. Delicately vacuum the condenser fins with a soft-brush attachment

. Be careful not to bend any fins.

Can I use Simple Green to clean my AC evaporator coils?


Spray the coils down with Simple Green All-Purpose Cleaner

.

Let the Simple Green sit 10-15 minutes to penetrate heavier soils, and then hose it down again. After the coil cleaner has dripped off the coils, examine the coil surfaces for any areas that may need another application, and repeat this step as necessary.

Is bleach or vinegar better for AC drain line?


We recommend using vinegar instead of a bleach solution

because bleach can cause corrosion if you have copper tubing in your AC's drain line. In addition, spilling bleach can ruin your carpet or clothing, whereas vinegar does not harm; it just leaves an odor.

Does spraying water on condenser coils?

Spraying water on your air conditioner can help it run more efficiently if you remove enough dust, dirt and debris to help improve airflow and prevent it from overheating. It's certainly not going to damage your AC unit to do so.

It's a good idea to spray off the condenser coils in particular a couple times a year.

How do you clean outside AC unit?

How do you know if your evaporator is clogged?

  1. Air coming from the vents is warm.
  2. Air conditioner starts and stops frequently but doesn't properly cool your home.
  3. Air conditioner does not turn on.
  4. Refrigerant leak near the indoor cooling system components.
  5. Unusual noises from the cooling system, such as banging or hissing.

What causes AC coils to get dirty?

Condenser coils get dirty

in the process of cooling the refrigerant

. Dirt from the air outside is absorbed into the outdoor cooling unit and begins to build up on the coils. The bigger the buildup, the harder it is for the cooling system to perform.

How do you flush an AC evaporator?

Can I vacuum my evaporator coil?

To keep dust from spreading to other parts of your HVAC system,

grab the hose attachment on your vacuum cleaner, position it near the evaporator coil, and use the suction from your vacuum to contain the loose dust and debris

.

How do you clean a clogged condenser coil?

  1. Inspect the Coils. Start by visually inspecting the coils for any noticeable damage. …
  2. Remove Debris With a Coil Brush. …
  3. Straighten the Coil Fins With a Fin Comb. …
  4. Wet the Coils and Coat With Coil Cleaner. …
  5. Wash Away the Coil Cleaner With Water.

Can you use Scrubbing Bubbles on AC coils?

If you are unable to locate the coil cleaner,

a household bathroom cleaner such as scrubbing bubbles will suffice

.

Can you use Dawn to clean AC coils?

What does an AC tune up include?

A full calibration of your thermostat to verify proper operation. An inspection of the ductwork for possible energy loss. Tightening and inspection of all the electrical connections to verify safe system operation. Evaluate performance of the blower motor and the condition of the blower belt.

Is it worth replacing evaporator coil?

You should replace the entire unit when…

Air conditioners last anywhere from 10 to 12 years. That said,

if your AC is nearing 8 years old, replacing just the evaporator coil would be like putting a brand new engine into a dying car—it's just not worth the money

.

Can you use Dawn to clean AC coils?

What is the best cleaner for air conditioner coils?

  1. Nu-Calgon Evap Foam Evaporator Coil Cleaner. …
  2. Frost King ACF19 Air Conditioner Coil Foam Cleaner. …
  3. Nu-Calgon Tri-Pow'r HD Cleaner for Condensers. …
  4. ComStar 90-298 Coil Safe Coil Cleaner. …
  5. WEB Condenser Coil Cleaner.

Can you use vinegar to clean air conditioner coils?


Yes, vinegar mixed with water is often used to clean AC coils at home

. However, vinegar is usually effective only against lighter dirt build-ups. Nevertheless, you can keep your coils in good shape by mixing white vinegar and water in a spray bottle and spraying the mixture onto the coils.

How long before I can turn on AC after coil cleaning?

Pro Tip: The AC will need to be Off for

about an hour

. If you're cleaning the compressor in summer, get an early start, so it will be back in business during the warmest part of the day. 2. Remove the Access Panel on the furnace or air handler to expose the coil.

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.