Quick Answer: Can Dirty Air Filter Stop Furnace?

How can I tell if my furnace filter needs changing?

How Can I Tell That My Furnace Filter Needs to Be Changed?Filter is a different color.

Energy bills are higher than usual.

Low air flow.

Rise in physical issues.

Headaches.

Allergies.

Carbon monoxide poisoning.

Forces HVAC systems to work harder.More items…•.

How long do furnace filters last?

For example, a one inch furnace filter should be changed out every one to three months. A three to four-inch filter can last for six to nine months. If you have a thick five to six-inch filter, it can last from nine to twelve months.

Why do my air filters get black so fast?

The main purpose of your air filter is to catch the dust particles and other debris in the air. The more there is, the quicker your air filter will become clogged. If you don’t regularly check your furnace filter often, the sheer amount of dirt could make the air filter black.

Can I vacuum my air filter?

If your central air filter shows no signs of grime buildup, you can use the hose attachment from your vacuum cleaner or use a handheld vacuum to remove any debris. If the vacuum hose doesn’t remove the buildup, you will need to wash it.

How often should you change air filters in your house?

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.

What happens if you don’t change your furnace air filter?

If the air filter is not serviced often enough, it will eventually become clogged to the point that air cannot pass through it. When the furnace is operating, the lack of air flow will trap the heat in the system. … Without a new air filter, the furnace will overheat every time it starts up again.

Is no air filter better than a dirty one?

Without a filter there to trap air pollutants, your home’s air quality will deteriorate. That’s because the same air contaminants will just circulate through your home. But what’s worse is that you’re likely bringing even more pollutants into your home on a daily basis.

Why is my furnace filter getting 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.

Can a dirty furnace filter make you sick?

Sealed buildings that are using old filters allow poor quality air to recirculate indoors. We inhale these particles, and depending on your sensitivity, they can cause minor problems like watery eyes, coughing, sneezing, or trigger asthma-related symptoms and other long-term respiratory complications.

How often should you change filter on furnace?

A good rule of thumb is to change 1-2 inch filters every three months, 4 inch filters every six months and 5 inch filters every 12 months. Signs your air filter needs changed: The filter is visibly dirty. Certainly if you can’t see the material of the filter itself, it should be replaced.

Is it bad to run a furnace without a filter?

The two main reasons you shouldn’t run a furnace without a filter are that your furnace could break down suddenly and that air will be filled with contaminants that are unsafe to breathe in. If your heater goes out in the middle of winter due to a clogged air filter, call the HVAC professionals at John C.

Can a dirty filter stop a furnace from working?

Dirty air filters are often the culprit behind an inefficiently performing furnace. That’s because air filters trap dust, dirt and debris like hair, which over time can restrict or block vital air flow, overheating the heat exchanger and preventing your furnace from working as it should.

What happens if you have a dirty furnace filter?

Restricted Flow Of Air The first side effect of a dirty filter is poor air flow. It’s your filter’s job to trap dust and debris to keep it from being released into your home. After a month of use, these particles have accumulated to a point where air can no longer pass through the filter.

What happens if you don’t change air filter in house?

If you don’t change your AC filter, it will begin to fail. It will no longer be able to filter the air properly, letting dust and contaminants get into the AC. Dust jams the moving parts of an AC such as fan motors and valves. The HVAC system will draw more power to overcome the obstacle.

How dirty should an air filter look?

Dirty Air Filter Performing a visual inspection is an easy way to know if your air filter needs to be changed. A brand new air filter is white or off-white in color, while a dirty air filter will appear darker with the dirt and debris visible.

Is a dirty furnace filter bad?

According to the Diamond Certified Organization, a clogged furnace air filter is the primary cause of equipment failure. Essentially, that overworked air blower discussed above may give out entirely, causing the whole system to fail, an outcome that can cost thousands of dollars to repair!

How long do air filters last?

60 daysFor basic 1″–3″ air filters, manufacturers typically tell you to replace them every 30–60 days. If you suffer from light to moderate allergies, you could install a better air filter or replace them even more regularly.

Can a furnace filter catch fire?

When your furnace is working hard to pull air through, the dirty air filter could eventually get sucked back into the system. When this happens, air flow is compromised and you’re at serious risk of a fire starting at the furnace level.