You say you changed the two in the living areas suggesting that you have a dual zone system 2 floors.
Air handler in attic filter.
As its name suggests an air handler handles the air inside your home and delivers warm or cool indoor air throughout your entire home.
On hvac systems with a return in each room there may be an air filter behind each of the return.
It sounds like you changed all you can change.
Most often air handlers are located in the attic basement or a dedicated closet and may closely resemble the shape of a gas furnace.
Now that you ve identified the return air end of the air handler look closely in that area for a slot which is perhaps 1 1 2 wide and runs the entire width or height of the metal of the return air plenum metalwork box connected to the inlet end of the air handler.
The filter is probably at the air intake not in the furnace blower unit up in the attic.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Clear duct system and good airflow common air handler problems.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Locating the air filter slot at the air handler.
What would we do without delivery.
The pb j of hvac.
So why put an hvac system up in the attic at all.
This is the indoor part of your ac system where your home s air is actually cooled.
Clean or change the air handler filter at least once a year more if you have pets or seasonal allergies or asthma.
On vertical air handlers with the return air duct entering below the air handler the filter often fits in a slot located below the hvac unit.
So you may think of changing the filters or cleaning the air handler ducts to solve the.
As the air flow is reduced the temperature of the air goes below the dew point and causes sweating.
Since the ahu is the central unit that moves the air throughout the ductwork it is important to make sure nothing obstructs the airflow through the air handler such as dirty or clogged air filters a regular air filter maintenance schedule will help you maintain good airflow through the duct system.
Well mainly it s a way to save space.
Air handler maintenance tasks diy.
Attic hvac systems save space.
On other hvac systems the air filter may be located behind the return air grill on a wall in your home.
It s generally located in your attic basement closet or crawlspace.
Here are a few things you can keep an eye on throughout the year to make sure your air handler is working properly.
Due to the chocked filters or blocked duct or maybe for whatever reason if the air flow is restricted then there will be chance of sweating.