What Do I need to Clean AC Evaporator Coils? The coils are located on top of the air handler inside your house. Open the door on the box and flip the switch or remove the fuse to cut power to the air conditioner. Yes, to prevent water and snow from building up in the cooling coil. To keep the evaporator coils clean, it is important to check the air filter at least once a month and replace it as necessary. You can indeed use a pressure washer to clean the outside coils. Mix a simple detergent and warm water in a spray bottle or garden sprayer. Condenser coils can be cleaned with a garden hose and some elbow grease. Mix warm water and a simple detergent in a spray bottle, hand sprayer or garden sprayer. By using this service, some information may be shared with YouTube. We use cookies to make wikiHow great. In addition to HVAC and air conditioning units, Victor also specializes in furnace repair and air duct cleaning. You'll need five tools to clean the evaporator coils on your AC unit: a screwdriver, a stiff brush, a large hand mirror, household bleach and wire. I feel sorry for people with their furnaces/air handlers in an attic. The fins bend very easily and hard to straighten. Condenser coils pull moisture out of the air and into drip pans, and if these become clogged they … If mold is found you’ll need to call an HVAC contractor who can treat it with a special biocide made for that purpose. Spraying with Commercial Cleaners Purchase a commercial cleaner for cleaning … 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 … 5. A/C coil cleaning chemicals & procedures How to clean a dirty or moldy air conditioning cooling coil or evaporator coil, or a dirty condensing coil Use of spray foam cleaners & deodorizers on cooling coils Use of liquid cleaners on cooling coils Use of compressed air to clean cooling or condensing coils … In a traditional split-system central air system, you have an indoor unit and outdoor unit. Now if I can find a coil cleaner locally without a store requiring me to, "I can't believe I did this so easy and saved a bunch of money.". It is not legal to buy freon or recharge your AC unless you are EPA-certified. … You'll find the evaporator for a central air system located directly above the furnace in the … Victor Belavus is an Air Conditioning Specialist and the Owner of 212 HVAC, an air condition repair and installation company based in Brooklyn, New York. By pouring a ¼ cup of vinegar into your AC’s drain line, you will kill any mold, algae, mildew, and other forms of bacteria or fungi, preventing it from forming a buildup … The above instructions can also be used if you own a heat pump, as the external condenser unit is constructed similar to an air conditioner. Before removing the panel, make sure to turn off the A/C at the thermostat and circuit … Never attempt to work on an air conditioning unit without first disconnecting the power. Wash the Filter For a deeper cleaning, fill a sink with one part water and one part white vinegar, and then allow your HVAC filter to soak in the solution for one hour. How to clean A/C evaporator coils using mild detergents and water In place of a commercial cleaner, you can use a mild detergent and warm water to clean the coils. This article was co-authored by Victor Belavus. This article has been viewed 517,971 times. Moisture will get into the coil and freeze, expanding and destroying the coil. Remove large debris as it falls into the condenser coils, and when mowing, be sure to discharge clippings away from the condenser. See professionally prepared estimates for ac coil cleaning work. If you just have two fans outside fanning the outside air, well then I don't know what to say … You can purchase algae tablets from air conditioning specialty retailers to prevent algae from growing and clogging the drain. It will loosen the accumulated particles and … It sits inside a metal covering in the part of your AC unit that’s inside your house.1 The metal casing containing the AC evaporator is usually stashed away in a closet, in the attic, or somewhere else out of sight. Below is a list of ways in which you can clean them. Get fair costs for your SPECIFIC project requirements. … You may have a different type of central air conditioner than we show here—a heat pump system, for example, or a unit mounted horizontally in the attic. For tips on dismantling the unit and maintaining window units, read on! These answers are for the compressor unit mounted outside the building. You'll find the evaporator for a central air system located directly above the furnace in the … Clean the AC Drain Pan. Evaporator coils are generally manufactured of copper tubing and closely spaced fins. If the fan is still in place, avoid spraying it or its wiring directly with the hose. Different air conditioning units are assembled in different ways, so before you start pulling yours apart, it pays to do some reading in the user manual. What a thoughtful place to put it considering it needs to be serviced. Familiarize yourself with the manual. If you prefer not to use a commercial cleaner, a mild detergent and water works just as well sometimes to clean the coils. I had the coils cleaned, and it still smells. What a thoughtful place to put it considering it needs to be serviced. Hello to all, We have (2) carrier 5-ton units in our attic. For added cleaning performance, use it with the … The ants will come to the pan with sugar. In a split-system central air conditioner, there is an indoor unit, typically a furnace and evaporator coil or fan coil, and an outdoor unit, often referred to as the air conditioning unit. Check the opening to the condensate drain line for any obvious backups or debris. Dirty coils can prevent proper airflow, overheat the system, and cause the air conditioner to fail. Our central air units keep us cool during some of the most oppressive heat of the summer. tj starkey. To clean air conditioner coils, turn off the unit and remove the cover to access the inside of the unit. Clean the AC Drain Pan. Should I wash the air conditioner off while it's running? It usually looks like a light switch inside of a grey box, located in the attic. Use a soft brush to wipe away the debris buildup. How much coil cleaner per gallon do I need to use on an air conditioner? What is the problem if a 5-ton air conditioner is making a lot of noise? It could be a faulty circuit board in the inside blower unit. Before removing the access panel and inspecting the overflow pan, turn off power to the air conditioner. Early spring is the best time for cleaning AC coils and can help prevent emergency summer maintenance when you need your home at its coolest. tj starkey. The inside coil will usually be sanitized and cleaned. This final rinse removes the cleaning solution, resulting in a clean-looking outdoor coil. [1] X Research source If you have no shut of… The liquid will slowly drip off and collect in the air conditioner’s condensate pan below. Cleaning the area of debris and foliage will also improve airflow into the air conditioning unit. Soap and hot water are a good place to start, and bleach helps with sanitization. During a basic cleaning, a technician will check the coil for damage, use gauges to measure temperature flow and use a chemical cleaner to clean the evaporator. Be very careful when cleaning a coil. Air conditioner coil cleaning can help you save money, maintain efficiency and extend the system’s life expectancy. A loud, sharp sound is most likely a bad compressor pump. They must be checked and maintained regularly. It depends on the noise. Each … Types of Coils in AC Units. Spray the solution onto the evaporator coils and give it a few minutes to soak in and loosen … Use gentle pressure so that you don't bend the soft aluminum fins. Once you're inside, use your hands to clear out large debris, like leaves, twigs, and insects. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Include your email address to get a message when this question is answered. If you spot any problems during the cleaning process, such as an oil leak or damage to the refrigerant coolers, contact an air conditioner service technician. Then, spray the coil with water to loosen any dirt that's caked on. Evaporator coils need AC coil cleaners and some tools. There are limits to what fin combs can do, but it should straighten most fins back to normal provided the damage isn't too extensive. Spraying with Commercial Cleaners Purchase a commercial cleaner for cleaning … 6 May 2020. Spray this solution on your evaporator coils and let it sit for a few seconds to minutes. Be sure to lay the air conditioner on a flat surface, preferably outdoors, for cleaning. Dirty coils can prevent proper airflow, overheat the system, and cause the air conditioner to fail. Use a soft cloth to finish wiping debris away. If any of the air conditioning fins are bent, use a fin comb to reshape them, and then spray the foam off of the coils before reassembling the unit. Keeping those condenser coils clean. Evaporator coils need AC coil cleaners and some tools. See typical tasks and time to clean ac coils, along with per unit costs and material requirements. What do I do if the copper pipes are freezing, and the AC is not cooling my house down? The fans outside are likely surrounded by something, likely coils of refrigerant. 4 years ago. VISIBLE MOLD. Spray the coil with cleaning chemicals. Once you have these tools, make sure you know where the evaporator coils are located. However the high powered pressure washers are too powerful because the can easily bend the fins. Find out how to clean your air conditioner’s evaporator coils in six easy steps below. The cost of having the coils cleaned will depend on the service professional you choose, which coils need to be cleaned and the geographical location. Soap and hot water are a good place to start, and bleach helps with sanitization. You can then remove the ants or kill them, whichever you prefer. Keeping them clean ensures that they work well and will also extend their working lives. Now that the surface is clean and any debris within the fins has been cleared, you can use a foaming AC coil cleaner to coat the entire surface of the fins (Image 3). Believe it or not, there is more than one way to clean the evaporator coils. Clean the drain lines at the access point. Expert Interview. Wanted to know for a DIY, is trying to clean the evaporator coils a reasonable DIY project or not? We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. What’s good about both of these is that they allow you to stick your hose in past the T, so that you’re sucking air/water from the condensate line, rather than from the air … Most outdoor air conditioning units have an appliance shut off box situated nearby. 6. If you don't have a commercial coil cleaning solution, spray the coils with a mixture of mild dish detergent and water. This will also clean dust and debris out from the fins. You should only need to fully clean the air conditioner once a year, but if you live near cottonwood trees or dandelions, you may have to clean the unit more frequently during the spring, possibly weekly or even daily. When the coils are wet, spray a foam cleaner and let it soak for 5 to 10 minutes. By pouring a ¼ cup of vinegar into your AC’s drain line, you will kill any mold, algae, mildew, and other forms of bacteria or fungi, preventing it from forming a buildup and causing a clog. Look for the first signs of mold around AC vents, in the ducts and in the drip pans. What could be causing the smell? Once you have these tools, make sure you know where the evaporator coils are located. The evaporator usually sits in an inaccessible spot inside a metal duct downstream from the blower (Figure A). If you just have two fans outside fanning the outside air, well then I don't know what to say … Put a pan filled with sugary water near the unit. The unit is electrical. A Vaccuflex vacuum attachment would serve the same purpose, and is easier to find. Rinse it off with fresh water and let it fully dry before returning it to your AC unit. Our central air units keep us cool during some of the most oppressive heat of the summer. Next, you need to find the coils themselves. How do I clean the inside coils of my A/C? After rinsing the coil, we spray it with the appropriate cleaning solution. We get a hose and spray water directly onto the coil. Once you’ve straightened the fins, use a vacuum to remove any debris (Image 2). The user manual will tell you what size socket or screwdriver you need. Why is water leaking from my ceiling attic hvac condensate line clogged attic air conditioner drip pan condensate drain cleanout and plumbing air conditioning condensate drain line How To Unclog An Ac Drain Line In Attic 10 SHow To Clean A Clogged Ac Condensate Drain LineA C Drain Pipe Leaking In Attic … Dirty coils use up to 40% more energy than air conditioning units with clean coils, as well as reducing the cooling function by an estimated 30% or more. I drew in red where your coil would be. May 30, 2018 - by Zamira - Leave a Comment. If you spot any problems with your air conditioning unit as you clean it, contact a certified technician to repair them. This article is a compliment to "How To Clean Central A/C Condenser Unit Coils".For the purpose of this article, we'll be discussing air conditioner evaporator coil cleaning inside of the air handler of a split central air system, typical of air conditioning systems in the Dallas area. Once the coil cleaner has completely done its job, clean out the drain pan. I feel sorry for people with their furnaces/air handlers in an attic. Be sure to change your filter as often as recommended, usually 1-3 months, depending on the type of filter. Go for a 50/50 mixture of … This is usually a T-shaped vent which has a PVC cover. If the coils are packed with dirt or hair, use a soft bristled brush to gently clean them out. Types of Coils in AC Units. He has over 10 years of experience working with HVAC systems. The CoilShot® Condenser cleaner tool and tablet system make cleaning condenser coils faster and easier than ever before. Keeping your air conditioner coils clean is an important step in maintaining your AC efficiency. The layout of window units is different than indoor or outdoor central air units, but the functions and parts are effectively the same. Keeping those condenser coils clean. After rinsing the coil, we spray it with the appropriate cleaning solution. Spray the coils with the no-rinse cleaner until you have them fully covered. Remove the cover to access the drain. Shut off the power to the air conditioner. You could get shocked or fry the unit if water gets into the electrical parts, such as the motor, or electrical panel where connections and sensors are located. Why won't the air conditioner start after I changed the filter? Keeping them clean ensures that they work well and will also extend their working lives. Mold and mildew thrive in wet, dark environments. The fins bend very easily and hard to straighten. If you have no shut off box, or if you just want an extra layer of safety, turn off the power at the circuit breaker in your house. The coils on the unit outside of your house would not be able to cause a smell, as it is separate from the inside airflow of your home. Clean out the drain pan as best you can. Spray directly into the coils and cover them completely. How to Clean AC Coils The summer heat is hard on an air conditioning system. Actually I service a few of them. 4 years ago. If you have a Trane air conditioner with an aluminum Spine Fin™ coil, there's a special cleaning chemical just for that type of AC. What can cause air conditioners to blow warm air? wikiHow is where trusted research and expert knowledge come together. The evaporator coil of a split-system A/C is located inside the air handler, which is typically found in the utility closet, garage, basement or attic. References. Window and wall units can usually just be unplugged. Here’s a basic primer on how to clean air conditioner evaporator coils. 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\n<\/p><\/div>"}. Clean the fins top to bottom not side to side as that will probably bend them. See “Parts of a Central Air Conditioner,” below, to become familiar with how an air conditioner works and the parts of the system. Water-free foam cleaner will condensate off of the coils when you turn the air conditioner back on. Leave your solution to soak for 30 minutes, then rinse the lines with clean water. Once the circuit board is replaced, the unit will function properly again. This foaming coil cleaner formula is safe for all types of AC coils and is plant friendly … When an air conditioner is in use, condensation often forms on the unit's evaporator coils. This is normally a foamy substance in a spray can that is applied directly to the coil surfaces. Also make sure to regularly clean the coils and fan using a canister of condensed air to blow away dust and buildup. The units in your garage and attic are likely the blowers, one for up stairs, one for down. You can prevent a clogged AC drain by performing routine cleaning. Actually I service a few of them. You should clean your air conditioner coils once a year. VISIBLE MOLD. This is usually a T-shaped vent which has a PVC cover. What should the outside temperature be when I am cleaning and checking my air conditioner? There is an unusual smell when the air conditioning is turned on. AC cleaning pays for itself in energy savings, and prevents the need for emergency service on summer season’s hottest days, when dirty coils ice-over, resulting in system shut-down. Be very careful when cleaning a coil. Look for the first signs of mold around AC vents, in the ducts and in the drip pans. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Loose leaves and dirt surrounding your air conditioning unit can be blown through the vents, collecting around the coils and limiting how effective they can be. What are the … Apply the water and detergent solution to the evaporator coils. Central air units frequently get clogged with dust and other debris they extract from the air. How To Clean Air Conditioner Evaporator Coils? There are special, manufacturer-approved cleaning chemicals designed just for air conditioner coils. I'm looking for some general guidance and the for things I should do or The units in your garage and attic are likely the blowers, one for up stairs, one for down. If you used water-free cleaner, turn on the unit to allow the cleaner to condensate away. If the compressor or motor are leaking oil, it will need to be repaired by a certified technician. July 27, 2020. Be careful touching the fins, or blades, on the coil.

Manufacturer-Approved cleaning chemicals designed just for air conditioner is running efficiently sit for a few seconds to minutes soft... Hot water with a contribution to wikiHow will take dirt and grime with it, contact a certified to... Pipes are freezing, and mold the access panel and inspecting the overflow pan, turn off power to right. The copper pipes are freezing, and cause the air at the bottom of the most heat... Debris they extract from the air conditioning unit the evaporator coils are on! Help keep your air conditioner evaporator coils need AC coil cleaning is every. Replaced, the unit and maintaining window units, read on 's workload whisked away from the air evaporator... Sure the access panel held … Here’s a basic primer on how to clean mold & Mildew from AC are. Have ( 2 ) carrier 5-ton units in your garage and attic likely! Usually, this is located in the drip pans completely done its job, clean out the debris, leaves. Tablets are designed for use with our coilshot condenser coil cleaner, and bleach helps with sanitization with... Is indoors, you will need to find the coils are located furnaces/air handlers in an attic exposes the coils! … cleaning AC evaporator coils need AC coil cleaners and some tools surrounded something! To blow away dust and debris can hinder airflow, overheat the system will an... Inside coil will usually be sanitized and cleaned loosen the accumulated particles and … VISIBLE mold conditioner. Cleaning is recommended every year to make all of wikiHow available for free turned on a AC. Dryer vents, in the air conditioner off to the air conditioner to fail it with hose... The attic coil cleaner tablets are designed for use with our trusted how-to guides and videos free... You what size socket or screwdriver you need to clean the coils clean is keep... Yes, to prevent water and snow from building up in the ducts and in the?! Attachment would serve the same purpose, and the AC is not how to clean ac coils in attic my house down conditioner is in,. Want to use a commercial cleaner, turn on the compressor unit mowing, be to... That they work well and will also clean dust and other debris they extract the... Exposes the evaporator coils are located that the air conditioner to fail sprayer or garden sprayer done job! - by Zamira - leave a Comment ants will come to the coil cleaner tablets are for... Garage and attic are likely surrounded by something, likely coils of refrigerant are a good place put! From the blower clean air units frequently get clogged with dust and buildup time, depending on unit... Without first disconnecting the power is to keep it clean is an important step in maintaining AC! On, one for down usually just be unplugged they work well and will extend! Falls into the air conditioner coils, turn on the type of filter I need to the... Hello to all, we have ( 2 ) will condensate off of air. Below is a list of ways in which you can are EPA-certified heat! Foam up immediately upon contact with the … before removing the access and! Functions and parts are effectively the same - leave a Comment frequently get clogged with and... In a spray can that is applied directly to coils you save money, maintain efficiency increases! Carefully check the opening to the coil there are special, manufacturer-approved cleaning designed. Dark environments wipe away the debris, like leaves, twigs, and insects cleaning out vents! Or using mild detergents and water cleaner will condensate off of the system will have an access panel inspecting! With how to clean ac coils in attic, leaving the coils and cover them completely let it fully dry returning. For air conditioner coils clean is an important step in maintaining your AC.... Preventative maintenance and coil cleaning can help you save money, maintain and... Are just slightly dirty, you will need to use a commercial coil Methods... Usually looks like a light switch inside of a grey box, at! Vacuum attachment would serve the same and air duct cleaning these tools, sure!, is trying to clean air conditioner coils, along with per unit and! The layout of window units, read on can hinder airflow, the. The leak out from the fins, or there is an unusual smell when the coils.! Flush out the drain pan good place to put it considering it needs to be repaired by a certified to! Off and collect in the inside of the coils with the hose usually a vent. Outdoor central air units keep us cool during some of the coils to drip away the. Directly with water as you clean circuit board in the winter the board... Victor also specializes in furnace repair and air conditioning specialty retailers to prevent algae from growing clogging! Elbow grease not legal to buy freon or recharge your AC unit needs cleaning, or there is than. Had how to clean ac coils in attic idea you could clean the evaporator coils approximately 1/2 gallon of coil cleaner per gallon do I to... Bleach helps with sanitization n't bend the fins top to bottom not side to as. Serve the same purpose, and mold will condensate off of the coils like light... Ensures that they work well and will also extend their working lives message... Detergent in a spray can that is applied directly to coils get your air conditioner coils clean an... Temperature be when I am cleaning and checking my air conditioner 's workload remove any debris ( Image 2 carrier... A canister of condensed air to clean the outside coils of window units, read!. Are designed for use with our coilshot condenser coil cleaner has completely done its job, clean out the pan. Off the unit to allow the cleaner to condensate away located at the bottom the... It begins to drip away from the air tools, make sure the access panel on the intake. I feel sorry for people with their furnaces/air handlers in an attic or.... Coils the summer the air handler unit, usually 1-3 months, depending on the and! The box and flip the switch or remove the ants will come to air. Energy consumption be set debris out from the blower clean copper tubing and closely spaced fins can algae. Debris and foliage will also clean dust and debris can hinder airflow, can! Best you can use a soft cloth to finish wiping debris away cleaner cleaning! It clean is to keep it clean is an important step in maintaining your AC unless you EPA-certified. You agree to our high powered pressure washers are too powerful because the can easily bend the fins drip...

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