Tip & How-To about Heating & Cooling

Cleaning Air Conditioner Condenser Coil with Pictures

The most important Air Conditioning maintenance that needs to be done every year is the cleaning of the condenser coil. Doing the job of cleaning the A/C coil is the best way to make sure that your air conditioning system is working efficiently and giving you the best performance possible.


The tools needed to do the air conditioner condenser coil cleaning will be:


Garden hose with nozzle
Garden pump sprayer
Condenser coil cleaner (can be purchased at HVAC Supply houses, or many hardware type stores)
Hand tools needed to remove condenser fan


To do the job correctly you will need to first turn off the power to the unit and remove the condenser fan.








Once the condenser fan is removed then, you should wet down the condenser fins with a garden hose. Use nozzle that will give you a high volume spray but not with high pressure. Too much pressure will bend the fragile fins and cause them to shut off the ability of the air to flow through them, this is want you want to avoid. You want it to be as easy as possible for the air to get through the fins, for the best possible heat exchange.


After wetting the fins, you then will need to spray the fins inside and out with a foaming coil cleaner. Make sure to wear eye protection and hand protection. If you have sensitive skin, you may also want to wear long sleeves to protect exposed skin. I buy it in a concentrated formula then dilute it with water to the proper working formula. You may need to go over the fins a couple of times with the coil cleaner to get it worked into the fins. Allow the coil cleaner time to work the dirt loose and boil it out of the fins.









After about fifteen minutes start to rinse the coils with fresh water. This will take a long time and lots of water to fully rinse the coil cleaner from the fins. It also is very important that you get everything rinsed fully. Failure to do this will result in excessive dirt accumulation and also can cause corrosion. Make sure that the water is running clear and that all bubbles are gone before stopping your rinse.


Then reassemble the condenser fan, turn on the power, and check the operation of the unit. It is okay to run the unit immediately after washing it. The water will not hurt the unit.





You now will have an Air Conditioning unit that will give you the best possible performance!




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1 Answer

How often should I have maintenance done on my air conditioner?


You should clean the indoor unit filter at least once a month, pressure wash the condenser coil every quarter, and clean the evaporator coil and fans every year.

May 02, 2017 | Cars & Trucks

1 Answer

how to clean dirt that gets by filter of window air conditioner M7Q08F2A


Both the evaporator and condenser coils (inside and outside) can be safely cleaned with products specifically made for the job. Clean evaporator and condenser coils mean more efficient cooling - which means lower operating costs. Cleaning the coils can remove stale or other less desirable odors that originate from your air conditioner. An example is made by Thermwell which is available at Lowes and other hardware and home improvement stores. There are many different manufacturers of the cleaners - so if this particular brand isn't available at the store you shop, another will do. Different brands and types have different methods - so you should read and follow the directions on the can. Many of the canned foaming / spray type cleaners are "rinse free" - meaning it is not required to rinse the foam off - as running the unit will allow the condensation that forms of the coils to do the rinsing for you. It should be noted that window / thru the wall types and other non-central air conditioning units should be tilted so that the condensation and chemicals drain outside - not into the house. If your AC hasn't been dripping water inside, it should be fine. Usually all that is needed is to remove the front grill and filter to access the coil. With the unit off (preferably unplugged) spray the foaming cleaner into the coil and let it sit to work on the dirt, grime, mold, nicotine, etc. that has collected on the coil. When the last step of the can's printed directions are complete - the job is done. You can find some helpful videos on Youtube to show how the cleaning is done on the larger, central air type units.

Please rate this reply if it was helpful to you - good luck!

Aug 04, 2010 | Maytag M7Q08F2ACOM Air Conditioner

1 Answer

Not blowing cold air


Hi,
There can be a couple of things that could be happening...
The first and easiest thing is to check the air filter. Make sure that it is clean... clean it or replace it. Next check the air vents to make sure that they are open and giving you good air flow...
Also check to make sure that you are not icing up on the indoor coil... ice will tell you that you are low on refrigerant. You also could be low and not be icing over, but you would need to have gauges on the unit to check that.
Finally check and clean the outdoor coil...this also can give you problems if the heat is not being removed from the outdoor unit efficiently...
You may also have a unit that is sized in such a way that it hits the balance point at about 85...that means that your heat gain is equal to the capacity of the unit...I often try to size them for about that here in Northern PA. because wqhen seldom get hotter then that and the unit then is much more effective at removeing humidity at lower temperatures...

You can also check out the tips that I have wrote about Air conditioning2_bing.gif trouble shooting and maintenance...

Here is one about cleaning the condenser coil and at the bottom of that one are links to others..

Condenser Coil Cleaning Condenser Coil Cleaner

http://www.fixya.com/support/r3850183-condenser_coil_cleaning_condenser_coil

heatman101

Jun 25, 2010 | Carrier 38CKC030 Air Conditioner

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