The air handler pulls air in from the house through the return duct system, and then blows the air through the heating or cooling system and back into the house through the duct system. The air filter is typically located at the point where the return duct enters the air handler.
How often should I change my air handler filter?
As a general rule, you’ll want to replace pleated air filters and furnace filters in your home every 90 days. The longer the filter is in place, the more dirt, dust and allergens are trapped clogging the filter and decreasing their efficiency.
Where is air handler filter located?
Air handler – In homes with multiple return registers, the filter is often installed immediately in front of the air handler. This component is most likely located in either the attic, garage, or basement. In most apartments, the AC unit is in a small closet, and the furnace filter should be within arms’ reach.
How do you clean an air handler filter?
Wash the Filter
- For a deeper cleaning, fill a sink with one part water and one part white vinegar, and then allow your HVAC filter to soak in the solution for one hour.
- Rinse it off with fresh water and let it fully dry before returning it to your AC unit.
Why does my air handler have two filters?
Scenario 1: Your HVAC system has multiple return ducts.
This is the most common reason why your central air system has two air filters. … Having multiple return vents solves this problem, but it also requires air filters at each vent to properly filter the air and prevent particulates from getting into your fan motor.
Why do my air filters get dirty so fast?
When your A/C is on the thermostat fan will constantly be running causing air too run over the air filter continuously and causing it to get dirty more quickly. … You may have a leak in your air ducts – Leaky air ducts can also cause your filter to clog up and especially if it is near your AC unit.
How do I know if my AC filter is dirty?
One clever way to determine if the air filter is dirty is to do the “white sheet test.” This involves hanging a clean white sheet approximately 5 inches away from one of the vents for at least one hour. If the sheet turns gray, you’ve got a filthy air filter. The grayer the sheet, the dirtier the filter.
Do air handlers have filters?
Taking care of the filter is one of the most important things you can do for your air handler. Clean or change your air filter at least once a year to ensure proper air flow and better indoor air quality. Locate your air handler filter. It may be behind the bottom panel of your indoor unit, or there may be two filters.
Do I need both a furnace filter and a return air grill filter?
While many people refer to air conditioning and furnace filters as if they’re different, this is not the case. Your furnace and your air conditioning system use the exact same filter, so there’s no need to worry about purchasing separate filters for each piece of equipment.
Does cleaning AC filter make it colder?
Freezing Up: A good, clean air filter allows air to flow freely out of your unit. A dirty air filter restricts the flow of cold air, causing it to build up inside the air conditioner and lower the internal temperature.
Can you vacuum air filters?
Vacuuming a Filter Can’t Reach the Inner Fibers
As time passes, your air filter collects many contaminants, including dust, pollen, and dirt. The contaminant particles can get buried deep in the filter’s fibers, so a vacuum cleaner won’t extract all of them.
Can a dirty air conditioner filter make you sick?
When your air conditioner becomes dirty, and the filters aren’t changed often, they become a breeding ground for all kinds of bacteria and fungi. … These issues might include a potentially fatal infectious pneumonia or even Legionnaires’ disease, which comes from the Legionella pneumophila bacteria.
Should you put filters in your return vents?
Do not put filters in your supply vents. Your AC system should have a proper fitting filter on the return side. By placing a good fitting, high quality filter on the return vent, you will remove particles from the air before they can enter the AC system.
What happens if you use AC without filter?
Without a filter, the condensation drain will fail to drain the moisture from your AC unit. This will result in condensation accumulation on the Freon tubing. The condensation will then start dripping down the pan, causing water damage to the whole system.
Are return air filters necessary?
If there is no air filter at your HVAC unit, then you absolutely need a return vent filter. … So it will serve as the only line of defense against dust and particles entering your HVAC system.