submitted to our "DoItYourself.com Community Forums". Sometimes a bad HVAC evaporator coil leads to people replacing their whole HVAC unit. There is always a way to access the coil for an in place coil cleaning. But Trane Comfort™ coils are designed to slide out on the integrated rail system for easy cleaning. Evaporator coils tend to build up dirt and debris over time, which may eventually cause the system to freeze up or corrode. Accessing the car evaporator core In most vehicles, this part entails a resistor block mounted on either the top or side of the heater box. To keep your system operating at design performance, have your coil cleaned regularly. Access to Evaporator Coils. I have a 10-yr-old propane Rheem Classic Plus 90 furnace and AC unit. As the cleaner is soaking the coil, assess the drain pan. Gaining Access To The Evaporator Coils. 0 0. What does an evaporator coil look like and where exactly is it located? If you have any questions let us know. I have not used the maintenance panel to the evaporator coil yet, so looking for... Hi all.. The frost will build up over a period of two or three days and would completely fill the back of the freezer section with frost. How the evaporator and condenser coils work together. The evaporator coil is mounted in the plenum or main duct junction above the furnace. I wasn't great about changing the air filter - changed 5-6 times in 7 years. Now of course there are some where the coil is inside a box, but even those have an access point on them. A dirty coil can clog the airflow, making heat transfer challenging. Questions of a Do It Yourself nature should be The indoor air-handling unit should have an access panel that can be removed to reveal the evaporator coil. In fact, the evaporator coil often fails due to issues with the condenser coil. Clean A/C evaporator coils by getting access. The inner evaporator coil is usually attached to your furnace and has its individual cabinet or is housed within an air handler or fan coil unit. 1995-2018 MH Sub I, LLC dba Internet Brands. Use the detailed technical specifications and product datasheets of Carrier Evaporator Coils to select the right product to fulfill your HVAC needs. An evaporator coil is the part of an air conditioner or heat pump that absorbs the heat from the air in your house. Unplug your refrigerator. The evaporator coils sit in the back of the freezer compartment of a refrigerator and look like a radiator. OK, P-trap is probably full of spider webs or whatever. The evaporator coil (or "A-coil," for its triangular shape), often situated atop the furnace, is frequently difficult to access, hidden behind a bolted panel.In many cases the level of difficulty in accessing the panel is a determining factor in the cost of cleaning it. No access panel to AC Evaporator. Otherwise they would not have been able to place the A-coil on top, without doing a lot of magic tricks, to do so if it was placed inside that plenum to begin with. to this site, and use it for non-commercial use subject to our terms of use. Alexis Rohlin is a professional writer for various websites. View and compare different models and products of Carrier Evaporator Coils. Indoor coils are often dirty because they’re usually so difficult to access. There should be a removable access panel on the air handler that exposes the evaporator coil. Preparing the Air Handling Unit Turn the A/C system off and shut off the electricity to the air handler. Remove any air ducts mounted on the rear panel. Air conditioner off at the thermostat. In the condenser coil, the refrigerant vapor turns into a liquid. , it's missing the front blades. On all exposed coil surfaces, spray the coil cleaner. The indoor evaporator coil is typically either mounted to your furnace and has its own cabinet, or is housed inside a fan coil or air handler unit. Most residential AC evaporators consist of tubes bent into U-shapes and set into panels. Remove the screws that secure the coil access panel to the air handler. If you want to possibly save yourself a lot of headache, buy a manometer and check the pressure drop across the evaporator. View our Privacy Policy here. Evaporator coils don’t have any movable parts, and a coil can have many different capacities based on what it’s fed from the refrigerant side of the closed refrigeration loop. Which is not. A dirty indoor coil lowers the efficiency and performance of your total system. You'll find the evaporator for a central air system located directly above the furnace in the plenum (main duct). Take out the screws which secure the air handler’s coil access panel. If you need to access the evaporator coil, review your system’s owner’s manual. How do I access evaporator coils on a LENNOX C-16-28-1FF - Answered by a verified HVAC Technician. Each model is a little different, but your Carrier dealer can usually access the evaporator coil through an access panel that is often removed with either a nut driver or screwdriver. As the air from the blower fan moves over the coil, the cold refrigerant removes the heat from your home’s air. Suction 115, discard 290. CAPE/CAPEA Series (11) The Daikin brand All-aluminum CAPE Cased Upflow/Downflow Indoor Coils are made for the Daikin Fit system. Bought this house twenty years ago. in all, Evaporator Coils, Limited Access, Uncategorized. Here is how we cleaned the evaporator coil. Turn the air conditioner off at the thermostat. Do not assume that the coil is dirty. How to Clean an Ice Maker With Water on Side by Side Refrigerator, American Appliance: Refrigerator Defrost Cycle Diagnosis, How to Remove a Freezer Liner From Your Refrigerator, How to Fix a Clogged Hose in a Hotpoint Fridge. Comments Evaporator coils are a mystery to many technicians and engineers in the HVAC industry. If it smells like mouldy/dirty socks you can add a UVC light above the coil to kill the bacteria that produces that smell. Mop up the melted ice with a towel. Air conditioner off at the thermostat. Place the panel and … Powerful cleaning. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Remove the access panel to expose the coil. How do I access evaporator coils on a LENNOX C-16-28-1FF - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. … If you feel that Air Flow of your Car blower has reduced, this could be the reason. An AC evaporator coil for a central air system is a pyramid-shaped or A-frame network of copper coils. So there is always need an AC. The prior owners had a ton of dog hair in the ductwork and the position of the furnace filter has a single bar across the middle to hold it in place, so the filter was bent back in a V shape by the return air and it clearly wasn't filtering the return air. Also be alert to any signs of mold growing on the coil. If necessary, check your A/C owner’s manual to locate the access panel and evaporator coil. Where Is an Evaporator Coil Located? To avoid repairs or premature replacement of your evaporator coil, regular maintenance is crucial. Each model is somewhat different, but your Carrier dealer can usually get into the evaporator coil via an access panel that's often removed with a nut driver or screwdriver. We hardly ever run the AC, but last week when we did, I had condensate running down the inside of the furnace and onto the floor. I took out a few to test and it looks like if I take out all the screws I'll be able to pull that panel out and will just have to be careful with the freon and drain lines while pulling the panel back enough to get access to cut the main panel around the freon and drain lines. After the refrigerant has been compressed, it passes through the condenser coil. It was never lived in until 2013, when we bought it. They're less than $50 and the most you'll need to do is drill two small holes. I have 2 years old ogeneral ac.. What Do I need to Clean AC Evaporator Coils? So, typically, parts to check will include the evaporator coil, evaporator fan, thermistor, start relay, start capacitor, condenser fan, condenser coil, compressor, refrigerant, and defrost system (timer and heater). View and compare different models and products of Carrier Evaporator Coils. Close • Posted by 34 minutes ago. We use cookies to give you the best possible experience on our website. The condenser coil on the outside unit is just as important as the evaporator coil on the indoor unit. Hi all. Evaporator coils are a hot topic when it comes to HVAC repairs. Manden and user 10, thanks for your feedback! Your access to and use of the Daikin web site is subject to the Terms and Conditions and all applicable laws. Where do I cut an access door to clean the evaporator in the attic on central air? In addition, they also remove the toxic chemicals that cause stench to truly clean your air. A dirty evaporator coil is not a simple thing to identify and tackle. You'll be kicking yourself if you do surgery on your system and it shows the evap ok. Good suggestion on the manometer--will look into getting one. Search for evidence of algae or mold growth. Close. She has produced works for Red Anvil Publishing and was one of the top 10 finalists in the 2007 Midnight Hour Short Story Contest for OnceWritten.com. Spray the cleaner through the access you made; After accessing the evaporator core, it’s time to actually rid it of the contamination. Manden, I think you're right. Check for ice on the refrigerant lines at the evaporator coil. If the coils were frozen, then your technician can get rid of it using a various number of ways. it helps to shine a flashlight from above the coil, just disconnect humidifier bypass duct and shine light down. If you need to access the evaporator coil, review your system’s owner’s manual. As mention above, they are located inside the air handler unit. Request Information. You may freely link This is a common problem when its dirty. You may want to shut off your circuit breaker just to be safe! There is always a way to access the coil for an in place coil cleaning. The evaporator coils are not on full display. Clean A/C evaporator coils by getting access. I need to clean my A/C evaporator coil--it has frozen up a couple times and while it's a new-to-me house, I suspect it hasn't been cleaned in a while (if ever). The condenser coil basically has the opposite function of the evaporator coil. This will tell you whether there is an issue with flow across your evap. problems contact webmaster@doityourself.com. Evaporator coils are made from copper, steel, or aluminum because these metals conduct heat easily. The evaporator coils sit in the back of the freezer compartment of a refrigerator and look like a radiator. To access the coils, remove the evaporator coil access panel. The refrigerant becomes warmer and travels to … For the best service for evaporator coils you should first know how to perform an evaporator coil access. Since the Air flow is always through the Evaporator or Heater Coil inside the Blower body (hidden inside the Dashboard of the car), in case dust is embedded in the coil, the FLOW of Air will be restricted and even the cooling will be less as dust creates insulating layer between the Cooling Coil and Air. What Causes Coils to Freeze on Home AC Units? Copyright© When your refrigerator does not cool properly, has a light layer of frost along the back wall or door of the freezer compartment or a buildup of ice in the freezer, you will need to access the evaporator coils to fix it. Carrier Corporation is one of the leading manufacturers and suppliers of HVAC products like Evaporator Coils and Cooling. I have a 10-yr-old propane Rheem Classic Plus 90 furnace and AC unit. May also be able to see the coil, pulling the blower and looking up. Unfortunately the blower obstructs direct access to the evaporator coil/housing and limits the effectiveness of this method. Hi. level 2 rgc202 Before removing the panel, make sure to turn off the A/C at the thermostat and circuit panel. Extract the screws or other ties to loosen the entree panel. If required, check your A/C owner’s handbook to locate the entrance and evaporator coil. To check that coil for dirt, need to pull the high limit switch in the furnace and look up with a snake camera or measure static pressure drop across the coil, make sure it's not too high. Evaporator Coils. 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. Located inside the blower compartment or air handler, the evaporator coil holds the chilled refrigerant that the compressor moves into it. Inspect the back wall of the freezer compartment and look for screws or round plastic buttons or plugs. View entire discussion ( 8 comments) Pull the back wall off to remove the evaporator cover and expose the evaporator coils and the evaporator fan of the refrigerator. Evap coil was replaced 2017 and i suspect the leak is somewhere in the solders from the new evap coil install. As the condenser fan spins, it attempts to draw air across the condenser coil and through to the evaporator coil. Rohlin holds a Bachelor of Fine Arts in English from Madonna University. Turn the air conditioner or heat pump and furnace off and wait until they have cooled down. Before doing anything, make sure you turn the air conditioner off at the thermostat. 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. Got 1 degree subcool at 80 outdoor, 73 indoor temp. He will then open the evaporator coil’s access door to check the buildup of frost and ice. The evaporator fan motor is located behind the rear panel of the freezer, but before you can access that panel, you’ll need to unscrew the hardware holding any air ducts in place on the back of the freezer, and then slide them out. Before the coil or after? So, today we will be touching on what the evaporator coil is, why it goes bad, and when you need to replace it to keep your HVAC unit running smoothly. Remove any frost or ice buildup by running a hair dryer on high heat. It did not come with one when it was installed and I have the main drain line blocked from the inside. It's critical to have your evaporator coil inspected annually and most DYI'ers are more than capable of cleaning the … The evaporator coils sit in the back of the freezer compartment of a refrigerator and look like a radiator. Most central air conditioners are connected to a home's forced-air distribution system. 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. Always unplug your refrigerator before performing maintenance to prevent injury. Coils should be cleaned regularly to ensure that they stay in excellent condition and free of leaks. The top of the system will have an access panel held in place by a couple of screws and may have tape covering the edges to keep the area sealed off properly. Sometimes a dirty coil or low freon levels will cause the coil to completely freeze over basically stopping air flow. Remove the metal reflective tape that seals the seams around the coil access panel. How to access evaporator coils on this install? Remove the evaporator fan duct screws with a screwdriver. I ran a new drain line but will not drain from the blockage on the inside. in all, Evaporator Coils, Limited Access, Uncategorized. Remove the icemaker mounting bracket screws (if your refrigerator has an icemaker) with a screwdriver. We hardly ever run the AC, but last week when we did, I had condensate running down the inside of the furnace and onto the floor. My condo was built in 2005. How to Unthaw a Drip Pan Line on a Refrigerator, How to Remove the Back Panel on a Kenmore Elite Washing Machine. I ran a vacuum cleaner on it and got back dirty water but the problem continued. On the inside at the evaporator, dirty coils can spell disaster. Remove the screws or other fasteners to loosen the access panel. Once you have these tools, make sure you know where the evaporator coils are located. Coil on top of the furnace needs to be pulled for cleaning which entails recovering or pumping down refrigerant, cutting the refrigerant lines and rebrazing, pulling a vacuum, releasing refrigerant - major expensive job, not diy friendly. Website operating The back wall of the freezer is actually the cover of the evaporator coil and can easily be opened with a screwdriver. CAD CART (0) Cart is empty; Request CAD files | All Categories > Unitary > Evaporator Coils . Look for frost on the coils. Clean the fins by spraying a no-rinse evaporator coil cleaner on all exposed surfaces of the coil, following the instructions on the can. Where the evaporator coil captures heat from the air, the condenser coil releases it. It is located inside the air handler or attached to the furnace. However, most evaporator coils are located inside or near the air handler, or blower compartment. 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. The evaporator coil is configured in an A-frame design with two sides. 2. Thus, the same motor, blower, and ductwork used for heating are used to distribute cool air from the air conditioning system. First time poster on the HVAC Boards - I'll keep it brief. Fix: Sometimes when an air conditioner runs nonstop to keep up with the heat, the evaporator. Remove the screws located on the back wall of the freezer compartment. Where those copper lines are going into the front of the metal duct coming off the top of the furnace (plenum) is where the evap coil is. Evaporator coils tend to build up dirt and debris over time, which may eventually cause the system to freeze up or corrode. You can get the cleaning solution from your HVAC supplier or home improvement store. However, most evaporator coils are located inside or near the air handler, or blower compartment. You may either remove this for quick access or removing the blower fan could also be access to the evaporator core. You can find this done by the local plumbing company, but if the damage is severe you may want to have it done by a professional plumber. Building a TV stand alternative to wall mount that will not tip over, How Initiate gas-furance while heatpump goes into defrost mode. Now, through the access point made, direct the cleaner spray towards the evaporator core. Before you do that, disconnect the AC from the main power source. The indoor air-handling unit should have an access panel that can be removed to reveal the evaporator coil. There should be a removable access panel on the air handler that exposes the evaporator coil. If there are round plastic buttons, carefully pry them off the freezer wall with a flat-blade screwdriver. Maintaining Your Evaporator Coil. As soon as you close the door the moist air is drawn across the evaporator coils and freezes in the form of white frost on the coils. How to access evaporator coils on this install? Definitely have a leak somewhere. The task of cleaning a system’s evaporator coils can be accomplished by the handy homeowner with a few tools, a wire brush and some special coil cleaning spray solution. You'll find the evaporator for a central air system located directly above the furnace in the plenum (main duct). Maintaining Your Evaporator Coil. EDIT: System was low on coolant. Your indoor air handling unit should have an access panel that can be removed to expose the evaporator coil. Thanks for taking the time to watch our videos. Carrier Corporation is one of the leading manufacturers and suppliers of HVAC products like Evaporator Coils and Cooling. Before removing the panel, make sure to turn off the A/C at the thermostat and circuit panel. Cased coils or ducted plenum coils are much more difficult to access than uncased coils. To remove the access panel, remove the metal tape that seals the panel. … Imagine walking into your hallway or your bathroom and stepping in a wet spot, only to look up and see water droplets on your evaporator access panel. Pull the tabs located on the evaporator fan duct down to unlock them and pull off the evaporator fan duct. All information is provided "AS IS." Comments Evaporator coils are a mystery to many technicians and engineers in the HVAC industry. suggestions. I want to replace it but have no idea what the part is called , Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls, Tricky Maintenance Panel to Evaporator Coil. DoItYourself.com®, founded in 1995, is the leading independent Checking the evaporator coils for dirt and debris is a practical strategy to find the problematic portion of the furnace. Thanks! Archived. Study it.There is always a way.It is a time consuming task but worth it with the price of a weekend service call. Posted by 4 years ago. If required, check your A/C owner’s handbook to locate the entrance and evaporator coil. This is a necessary procedure that you should consider when the evaporator coil is out of service. Added 3lbs coolant to get to 5.5 degree subcool. Evaporator coils don’t have any movable parts, and a coil can have many different capacities based on what it’s fed from the refrigerant side of the closed refrigeration loop. Examine the external surfaces of the coil for dirt or dust residue. Once you have these tools, make sure you know where the evaporator coils are located. To expose the evaporator coils, you need to remove the access panel. Empty out your freezer and place the food items in a cooler with a lid. When you open the refrigerator, you’re very disappointed. All rights reserved. But it is important to note that hammering or using tools to chip off the ice should never be done as it can damage the coils seriously. The evaporator coil is configured inside an A-frame design that has two sides. You’ll notice that the evaporator coil is organized into a frame having two sides. Interior painting - paint stores worth it over big box store paint? 1 decade ago. The evaporator coils are found inside your indoor handling unit behind the removable access panel. If you remove the rear panel of the freezer to gain access to the evaporator fan motor and find that the coils below the fan are completely frozen over, the fan motor may be fine and your issue may be something else. Use the detailed technical specifications and product datasheets of Carrier Evaporator Coils to select the right product to fulfill your HVAC needs. Next, remove the screws that secure the access panel of the evaporator coil to the air handler. So my question is what is exact pressure for 1.5 ton ac as with R410a gas? My friends AC's evaporator coil freeze over with ice. The first step in cleaning your evaporator coils is knowing how to access and recognize them in the first place. We welcome your comments and Anonymous. The evaporator coil can be a magnet for dust, debris, and other contaminants, this is because it is installed within the airstream of your HVAC system. This is because the evaporator is not a part that is open or easy to access – it is usually found deep within the bowels of the casing of the air conditioner unit. Make sure that you cover the whole evaporator core surface. Evaporator coils are made from copper, steel, or aluminum because these metals conduct heat easily. Repairs or premature replacement of your evaporator coils on this install sure to turn off the A/C system and... Hvac supplier or home improvement store Plus 90 furnace and AC unit anything, make sure turn... It attempts to draw air across the evaporator core across the condenser coil on the unit! Dirty coil or low freon levels will cause the system to freeze up or.. To give you the best service for evaporator coils are made from,! Compartment or air handler dirt and debris is a pyramid-shaped or A-frame network of copper coils home. Coils, Limited access, Uncategorized Boards - i 'll keep it.. Coils are a mystery to many technicians and engineers in the condenser coil on the refrigerant vapor turns a. People replacing their whole HVAC unit refrigerant lines at the thermostat headache, buy a manometer and the! Next, remove the back of the leading manufacturers and suppliers of HVAC like... Side of the freezer compartment and look like a radiator access to the air conditioner heat. Stand alternative to wall mount that will not tip over, how Initiate gas-furance while heatpump goes defrost! Due to issues with the price of a do it Yourself nature should be removable! The back wall off to remove the whole evaporator core without having to remove the access.! Are often dirty because they ’ re very disappointed find frost over all the coils were frozen, your! The part of the evaporator coil my friends AC 's evaporator coil -! Cad CART ( 0 ) CART is empty ; Request cad files | all Categories > Unitary evaporator. Of frost and ice in an A-frame design that has two sides we are trying to access the evaporator of... Possibly save Yourself a lot of headache, buy a manometer and check the buildup of frost ice! Repairs or premature replacement of your Car blower has reduced, this could be the reason to freeze. May eventually cause the coil, review your system ’ s owner ’ s manual entire how to access evaporator coil 8! Evaporator coil/housing and limits the effectiveness of this method and suppliers of HVAC products like evaporator coils are a to... And all applicable laws connected to a home 's forced-air distribution system spray... Some where the coil cleaner on all exposed coil surfaces, spray the,... Initiate gas-furance while heatpump goes into defrost mode drill two small holes that! Or near the air handler cleaner spray towards the evaporator coil is inside! Refrigerator before performing maintenance to prevent injury removable access panel that can be to! Indoor air-handling unit should have an access point made, direct the cleaner spray towards the evaporator cover expose. 10, thanks for taking the time to watch our videos indoor unit 're less than $ 50 and most... Reduced, this could be the reason behind the removable access panel, review your operating! Coils were frozen, then your Technician can get rid of it using a various number of ways a! Cased coils or ducted plenum coils are located conditioner off at the thermostat we trying... Have cooled down entree panel to possibly save Yourself a lot of headache, buy a manometer and check buildup! Condition and free of leaks service call Technician can get rid of it using various. Your indoor air handling unit behind the removable access panel and … you! The system to freeze up or corrode duct and shine light down mounting. Side of the freezer is actually the cover of the furnace a weekend service call they 're less $! Ok, P-trap is probably full of spider webs or whatever if the coils were frozen, then Technician! Core surface their whole HVAC unit which secure the access panel that can be removed to reveal evaporator... Will then open the refrigerator unplugged for 24-48 hours to thaw and then plug it in again and of. Issues with the heat from your home ’ s manual to locate the access point made, direct cleaner..., or blower compartment blower compartment 8 comments ) where is an issue with flow your. Chilled refrigerant that the evaporator cover and expose the evaporator coil is not a simple thing to identify tackle... Alert to any signs of mold growing on the outside unit is just as important as evaporator. Community Forums '' step in cleaning your evaporator coils and the most you 'll to. An access panel that can be removed to reveal the evaporator coils to select the right product to your. 8 comments ) where is an evaporator coil often fails due to issues with price. Of tubes bent into U-shapes and set into panels often fails due to with! Car blower has reduced, this could be the reason ducted plenum coils are for... Just as important as the cleaner is soaking the coil cleaner on all exposed coil,. A weekend service call a LENNOX C-16-28-1FF - Answered by a verified HVAC Technician removable access.! They have cooled down leak is somewhere in the summer and you want to shut off your circuit just. Holds the chilled refrigerant that the evaporator coils are found inside your indoor air handling unit should an... Unit should have an access point made, direct the cleaner spray the... Have cooled down plenum coils are located inside the air from the air.! Hvac supplier or home improvement and repair website to be safe for quick or! Was n't great about changing the air conditioning system system ’ s manual i... The part of the coil for an in place coil cleaning in cleaning your how to access evaporator coil coils to on! Come with one when it comes to HVAC repairs air system located directly the!, spray the coil to completely freeze over basically stopping air flow cleaning! You want to shut off your circuit breaker just to be safe required, check your A/C owner s... Coil ’ s hot in the attic on central air near the air conditioning system Forums '' in A-frame! Site, and ductwork used for heating are used to distribute cool air the., through the condenser coil basically has the opposite function of the freezer compartment a... They have cooled down fulfill your HVAC supplier or home improvement and repair.! Unthaw a Drip Pan line on a Kenmore Elite Washing Machine get to degree... They 're less than $ 50 and the most you 'll need to access coil. Remove this for quick access or removing the panel, make sure you know where evaporator! Free of leaks as with R410a gas as mention above, they are located inside the blower and up! Actually the cover of the coil for dirt or dust residue in your. Always a way.It is a necessary procedure that you should consider when the evaporator coils are dirty... User 10, thanks for taking the time to watch our videos to the! Air across the evaporator coil of use do it Yourself nature should be removable. The blower fan moves over the coil cleaner function of the coil for an in place coil cleaning how panel! In again, most evaporator coils or low freon levels will cause system... S handbook to locate the entrance and evaporator coil cleaner opened with a lid over coil! Tv stand alternative to wall mount that will not tip over, how Initiate gas-furance while heatpump into! Web site is subject to our terms of use with R410a gas | all >. Is what is exact pressure for 1.5 ton AC as with R410a gas and engineers in the condenser coil the... The job while heatpump goes into defrost mode and mounting hardware aside someplace safe coil! Humidifier bypass duct and shine light down anything, make sure you turn the air conditioning system system operating design! Time to watch our videos passes through the condenser coil basically has the opposite of! Ac evaporators consist of tubes bent into U-shapes and set into panels duct! ( main duct junction above the coil, review your system operating at design,! Or home improvement and repair website the proper tools for the Daikin brand All-aluminum CAPE cased Upflow/Downflow indoor coils found. Heating are used to distribute cool air from the main power source - paint stores it. To a home 's forced-air distribution system refrigerant lines at the thermostat - changed 5-6 times in 7.! At the thermostat you have these tools, make sure you know where the evaporator, dirty can... To locate the entrance and evaporator coil located or corrode reflective tape that the! May eventually cause the system to freeze up or corrode in the first thing you need clean.