How To Replace Air Filter In Furnace

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Changing a home furnace filter regularly is the fastest and easiest fashion to make sure your furnace is running smoothly and efficiently, likewise as to help purify the air in your home. Bank check the furnace filter monthly to see when it needs to be inverse. Dispose of it and replace it with a new furnace filter of the aforementioned size when it gets muddied. This will keep the air flowing through your furnace, minimize the strain on your heating system, and assist filter dust and other particles out of the air in your dwelling.

1
Turn off your furnace before checking or replacing the filter. Set the furnace's thermostat to the "off" position. This volition forestall the furnace from turning on while you lot are checking or replacing the filter.
- If the furnace turns on while there is non filter in it, so it can suck up potentially-damaging loose droppings.
- Refer to the owner's manual for your furnace for whatever specific instructions regarding how to replace the filter.
Tip: Check your filter every month to see if information technology needs replacement. Almost disposable types of filters are designed to be replaced every 1-2 months. If you have furry pets or your furnace runs all the fourth dimension, then your filter will go muddied more quickly.
ii
Open up or slide the door console off of your furnace. There will exist a door on your furnace that either swings open up or slides off. Open up or remove the door to provide access to the inside of your furnace.^[1]
- If your door is the type that slides off, then you tin can typically remove it by merely lifting it up until it comes complimentary, so ready it aside.
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3
Locate the filter in your furnace and remove whatsoever cover that is over it. The filter is usually located at the air render duct or the archway to the blower bedchamber. In that location is sometimes some other cover over the filter that you will have to pull off.^[ii]
- Await for the vents where the air enters into the furnace system to locate the filter well-nigh either the air return duct or the entrance to the blower chamber.
iv
Slide out the old filter and hold it upwardly to the calorie-free. Employ both easily to carefully pull the filter out for inspection. Hold it upward to a calorie-free source to check how dirty it is and determine if it is fourth dimension to replace it.^[3]
- If in that location is whatsoever resistance when you attempt to slide the filter out, so there may exist a locking mechanism keeping it in identify. Check for such a system and slide the lock out of the way to release the filter.
five
Replace the filter with a new i if you tin can't see through it. Information technology's time to supercede the filter when no light shines through the filter when you hold it up to a light source. It's important to change the filter regularly to go along good airflow going through the furnace and keep information technology from overheating.^[4]
- Dispensable filters accept a paper-thin frame. If your filter has a plastic or metal frame, then it is a reusable filter than you tin can clean instead of replacing it with a whole new filter.
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1
Look on the cardboard frame of the old filter to discover the dimensions. The filter size will be printed somewhere on the frame of the disposable filter. Note it down so that you can refer to the measurements when you store for a new filter.^[5]
- If your filter does not have the dimensions printed on it, then measure information technology with a measuring record, or cheque the possessor'due south transmission for the manufacturer's recommendations to ensure you get the right replacement filter.
ii
Purchase a replacement filter of the correct size. Head to a home hardware store or abode improvement center to discover a new filter. Refer to the dimensions of the old filter and buy a filter of the same size.^[6]
- The cheapest dispensable furnace filters are fiberglass with cardboard frames. This kind of filter volition trap large particles of grit and is designed to be replaced every one-2 months. If you want to upgrade your filter, you can get a slightly more expensive disposable pleated filter, which will trap smaller particles of dust , pollen, and dirt. These filters last longer; from 4 months to 1 year.
Tip: If you or someone in your household has allergies, you might want to invest in a highly efficient particle air (HEPA) filter. These types of filters are antimicrobial and particularly designed to trap things similar mold, mildew, fungus, yeast, and algae. They are bachelor in both dispensable and reusable varieties.
three
Expect for an pointer on the filter that shows which way it needs to face. Your new filter will accept an pointer that shows which way the air flows through it. Find this arrow to make up one's mind which way to slide the filter into your furnace.
- Habitation furnace filters are made to filter air in a single direction so that they do non collapse or fall apart as they trap grit and other droppings.
iv
Slide the filter into place and supervene upon any cover that goes over it. Slide the new filter in so that the arrow is facing the furnace'southward blower motor. Snap the filter embrace back into place if you removed 1 to accept out the filter.^[vii]
- If you lot put the filter in backwards, and then your furnace won't accept sufficient airflow and it tin overheat and shut down. This tin also happen with a dirty filter, and so brand sure to proceed checking your filter monthly and replacing information technology when it is muddy.
5
Close or replace the door panel of the furnace. Swing the furnace's access door closed or slide it back on if you removed it. Your furnace volition now be prepare to utilize for at least another month.^[eight]
- Remember that if you have furry pets or you run the furnace very regularly, then you will need to replace the filter more than frequently. Check your filter every month and any fourth dimension you notice dust building upwardly in your home.
6
Turn your furnace back on. Set the furnace'south thermostat back to the "on" position now that you lot have replaced the filter. Your furnace will exist protected from loose debris by the filter and is safety to run as normal.
- You might want to make a note of the engagement you changed the filter to remind yourself to check it once again in a month.
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