Central air conditioners have filters located along the length of the
return duct. Common locations for filters are in walls, ceilings, or
the air conditioner. The filter is located in the grill and faces the
room.
Some filters can be reused while others need to be replaced. There
are many types available and they can be used in different ways.
Your window air conditioner filter(s) should be changed or
cleaned every other month during the cooling season. If your air
conditioner is used constantly, is exposed to dusty conditions or if
you have fur-bearing animals in the home, filters may require
more frequent attention.
Over the years, dirt builds up on the condenser and
evaporator coils of an air conditioner. The evaporator coil will
not become soiled quickly if it has a clean filter. However,
dirt will eventually build up on the evaporator coil. The dirt
can reduce airflow and insulate the coil, which will decrease
its ability to absorb heat. This problem can be avoided by
checking your evaporator coil once a year and cleaning it as
needed.
If the outside environment is dusty, or there is vegetation
nearby, outdoor condenser coils may also get very dirty. It
is easy to see the condenser coil, and you can notice dirt
on its fins.
Coils Condensate Drains
Aluminum fins found on Pass a stiff wire
condenser and evaporator occasionally through the
coils can be bent easily drain channels of your
and block airflow. A unit. A blocked drain
"fincomb", a tool that can channel can prevent the
be used to comb the fins unit from reducing
back to their original humidity. The resulting
condition, is available excessive moisture could
from wholesalers of air cause damage to walls and
conditioning. carpet.
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