The air filters will capture most of the tiny debris that could cause trouble for your system 4 though regular cleaning will still be necessary the coils will be much cleaner if the air filter is cleaned and replaced when needed.
Cleaning evaporator coil in attic.
Turn off power to the air handler by flipping the toggle switch near the air handler the.
It usually looks like a light switch inside of a grey box located in the attic.
Air handler units are located indoors usually in a closet or attic.
However if dust or dirt contamination is so extensive that the inside coil surfaces are affected too schedule a more extensive heavy duty cleaning procedure with your hvac.
How to clean a c evaporator coils using a brush brush cleaning can be a very effective technique for removing minor accumulations of dirt from evaporator coils.
The external surfaces of the evaporator coil that face the airflow in the duct are accessible and cleaning is generally within the skill level of most do it yourselfers.
Brush cleaning allows you to avoid the use of liquids or chemicals and gives you greater control on the pressure applied to the coils and fins.
The most basic way to keep evaporator coils clean is to make sure your ac unit has clean air filters installed.
Usually this is located in an attic or closet.
The coils are located on top of the air handler inside your house.