Change Furnace Filter In Attic

The filter may be positioned horizontally or vertically depending on the orientation of the air handler in the indoor unit.

Change furnace filter in attic. Depending on your lifestyle and the type of. Look for a filter cabinet along the sides top or bottom of the blower cabinet. Apply a non contact circuit tester to the furnace to verify. Fit in the new filter by following the direction of arrows printed on the filter see image below.

The general rule is to change a furnace filter usually located behind a return air vent or in a slot on the furnace itself at least once every 90 days. If you re thinking that you only have to change your filter once a year you may well be shortening the life of your furnace. Turn off the furnace s power at the circuit breaker on the main electrical panel. Check the filter monthly to see when it needs to be replaced.

In some cases especially on older models the filter may be found inside the blower cabinet. Actually you should check your filter monthly and often change it monthly depending on the type of filter you use. Changing a home furnace filter regularly is the fastest and easiest way to make sure your furnace is running smoothly and efficiently as well as to help purify the air in your home. Access the attic furnace.

Walk specifically on the floor joists to prevent damage to the ceiling below if. Look for a filter slot right where the return plenum contacts the blower fan assembly marked as air filter slot and yellow arrow in my photo. How to maintain an attic furnace. Wipe down the area around the slot or filter area with a cloth to remove dust.

The arrows indicate that air is being pulled into the register air handler so make sure the arrows point into the system not towards the house.