Can I use simple green to clean my AC coils?

Author: Gabriel Leffler  |  Last update: Friday, August 15, 2025

Knowing how to clean AC coils is a money-saving DIY skill, an easy way to maintain efficiency and save on energy costs. Regular, bi-monthly coil cleaning with Simple Green All-Purpose Cleaner during warmer months will keep your AC unit in great working order for years to come.

Is simple green safe for air conditioner coils?

As far as a cleaner Simple Green or anything non Citrus or with Petroleum products in it should be safe on either the evap or condensor coil.

What is the best thing to clean AC coils with?

Apply Coil Cleaner: Spray a commercial coil cleaner on the coils. If using a homemade solution, a mix of warm water and a few drops of dish soap can work. Let it sit for about 10-15 minutes. Rinse (if necessary): If using a rinseable cleaner, carefully rinse the coils with water.

What is a good alternative to AC coil cleaner?

If you don't want to do that, you can try a decently strong mix of dish soap and water in a spray bottle. It may not be as effective as coil cleaner depending on how dirty the coils are, but it won't damage anything as long as you rinse it thoroughly.

What is the best homemade AC coil cleaner?

You could also use a homemade mix of water and mild detergent (like dish soap) instead of commercial chemical cleaners. After cleaning the coils, it's also a good time to inspect the other parts of the unit. Inspect the condensate drain pan and remove anything that doesn't belong there.

How To Clean Your AC and Coils Like the Pros Do | WILL Make Air Blow Colder

Can you use Dawn dish soap to clean AC coils?

While Dawn dish soap is a versatile cleaning agent, it's not recommended for cleaning AC coils due to its chemical composition. Household cleaners like Dawn may not effectively remove stubborn buildup and could potentially harm the coils or other components of the system.

How to use simple green air con cleaner?

Use a hose to spray your AC unit from the inside outward, without soaking the disconnect or the electrical components inside the access panel. Apply cleaner to coils. To ensure foaming, use a pressurized, pump-up, or spray applicator. Avoid spraying onto electrical wires or connections.

How do you clean coils without a coil cleaner?

Cleaning Indoor Evaporator Coils
  1. Locate your indoor AC unit and turn off its power.
  2. Remove the access panel to reveal the evaporator coils inside the air handler. ...
  3. Use a nylon scrub brush to gently remove large dirt particles from the coils, working top to bottom.
  4. Use a fin brush to straighten any flattened coils.

What chemical is used to clean air conditioner coils?

Potassium or sodium hydroxide are widely used as active ingredients in coil cleaners.

Does vinegar clean an air conditioner?

Dissolves Buildup: The acidic nature of vinegar helps dissolve accumulated debris and gunk in the drain lines, keeping them clear. Antimicrobial Properties: Vinegar kills mold and bacteria, eliminating foul odors that can emanate from your AC system.

How long to wait before turning on AC after cleaning coils?

How Long Must I Wait After Coil Cleaning Before Turning On The Air Conditioner? Before using the air conditioner, make sure it is totally dry. After cleaning the coils, wait 30 to 60 minutes before turning on the air conditioner.

Can you use WD 40 to clean AC coils?

Spray. Next, spray a generous amount of WD-40 in the cooling fins of the A/C, going from left to right. Let the solution sit for 15-20 minutes. This cleaning agent will expertly go deep into the cooling fins, while any other cleaning solution would only clean them up from the outside.

Is it okay to spray water on your air conditioner?

After all, one thing we were all taught when we were very young is that water and electrical appliances don't mix. So how do you clean your outside AC unit? The good news is that you absolutely can spray water on your air conditioner if it needs a cleaning, and nothing bad will happen.

What should you not use simple green on?

Restrictions on Use: Do not use on non-rinsable surfaces. This product is not classified as hazardous under 2012 OSHA Hazard Communication Standards (29 CFR 1910.1200). Inhalation: Not expected to cause respiratory irritation. If adverse effect occurs, move to fresh air.

What can I use to clean the inside of my air conditioner coil?

Use a can of compressed air (which you can purchase at any hardware store) to gently blow large particles of debris and dirt out of the evaporator coils. Any debris that is stuck can be worked away using your soft bristle brush. Make sure you are not using a metal or wire brush because it can damage the coils.

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

Dirty AC coils become insulated rather than able to release heat the system extracts from the air. The system will therefore struggle to cool your home. Indoor air can become more humid too, as the system won't be able to extract as much moisture, making things extremely uncomfortable in the summer.

What can you use instead of AC coil cleaner?

Still, about ¼ of a cup of vinegar will do the trick in most cases. As for the frequency, you can get good results by cleaning the coils every month or every couple of months. Naturally, cleaning the coils can be time-consuming, especially when other AC maintenance tasks are added to the solution.

Can I use Dawn dish soap on my AC coils?

Any standard dish soap, mixed with warm water should do the trick on really grimy coils.

What is the best coil cleaner?

Let's look at the five best AC coil cleaners (listed in no particular order) that can help you work smarter, not harder.
  1. NU-CALGON Evaporator Coil Cleaner. ...
  2. SIMPLE GREEN Foaming Coil Cleaner. ...
  3. CRC Foaming Coil Cleaner. ...
  4. ZEP Foaming Coil Cleaner. ...
  5. SPRAYWAY Penetrating Coil Cleaner.

How do you make homemade cleaning solution for air conditioner coils?

If you prefer a more natural solution, you can also make a DIY cleaning solution using water, vinegar, and baking soda. Mix one cup of vinegar and half a cup of baking soda in a gallon of water. This solution can be used to clean the air filters, coils, and drain pan.

How do you stop a coil gunk?

Opt for e-liquids with a lower amount of sweeteners to reduce the likelihood of coil gunk. Lighter-coloured e-liquids, such as fruity flavours and menthol flavours, generally contain fewer additives that contribute to coil buildup.

Will vinegar damage AC coils?

Washing the air conditioner with vinegar will remove any dust, bacteria, algae, or other particles that may cause the air conditioner to clog. Moreover, using vinegar once a month removes dirt from the coils and protects the air conditioner from many other main problems.

Can I clean my AC coil with Simple Green?

Knowing how to clean AC coils is a money-saving DIY skill, an easy way to maintain efficiency and save on energy costs. Regular, bi-monthly coil cleaning with Simple Green All-Purpose Cleaner during warmer months will keep your AC unit in great working order for years to come.

Does Simple Green need to be rinsed off?

No scrubbing necessary. Allow treated surfaces to air dry or wipe off with clean cloth. When using on food contact surfaces: counter tops, stovetops, highchairs, kitchen appliances, thoroughly rinse all treated surfaces with potable (tap) water after the wet-contact time has been reached.

How long to let coil cleaner sit?

An AC coil cleaner must usually sit for 5 to 10 minutes. This allows it to foam and break up accumulated dust and debris. Washing it off too soon can prevent the coil from getting clean enough.

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