Your furnace filter collects debris, including allergens, mold spores, and dust. If your filter is too full, it will allow this debris through into the ducts, to be spread throughout your home. As a result, your air quality will drop, and you may notice that your allergies or respiratory symptoms get worse.
For 1- to 2-inch filters, replace them every 1 to 3 months. For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.
This leads to a variety of issues for your HVAC system including system inefficiency, higher energy bills, inadequate air quality, and ultimately failure. If you haven't been swapping your air filters as frequently as you should, there's no time like the present to start practicing this crucial maintenance step.
If you leave your furnace filter in for too long, it can become clogged and make your furnace work harder to circulate air. This can lead to increased energy consumption and can potentially damage your furnace. Additionally, a dirty filter won't be as effective at improving air quality.
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 HVAC system. Dust jams the moving parts of an AC such as fan motors and valves.
A clogged air filter can also increase the chances of a fire, further advancing the safety concerns in this home. Clogged air filters prevent furnaces from running properly and reduce the life of the system. The blower, heat exchanger, burners and other components are all crucial for heating your space.
As previously discussed above, failing to change your filter means debris and dirt will soon clog your unit, causing it to overwork. This in turn raises your energy bills. It takes longer to cool your home. With an old air filter running, you'll notice that it takes so much time for your AC to cool you home.
If your filter becomes clogged, it can cause your furnace to shut off as a safety feature to prevent damage to the furnace. To fix this problem, simply replace your air filter on a regular basis. If you have pets, be sure to change your air filter more frequently.
You or your family may experience the following symptoms from a dirty air filter or air ducts: Respiratory infections. Worsened allergies or asthma. Frequent sinus infections.
While it may seem obvious, dirty air filters are one of the main causes of poor home air quality. “If your family seems to be getting more colds or having more nasal congestion than usual, it might be a good idea to take a look at your furnace filter,” said Ear, Nose and Throat specialist, Morgan Yost, DO.
Is no AC filter better than a dirty one? No. A dirty filter will slightly protect against some dust particles that will damage your AC system. Its better to have a dirty filter than having no filter.
As the system is working harder to get around clogged air filters, it can cause the entire system to overwork and eventually break. If this happens, you'll need to replace the entire system, which can cost anywhere from $4,000 to $12,000.
Without furnace filter, dust, pollen, and mould will settle on your heating and cooling system. When this happens, you will have to clean your home's heating and cooling system more often and replace the air filters far more often than you should. This will also lead to mould, mildew and bacteria build-up.
Your furnace can, technically, run without a filter. However, we strongly recommend you don't run your furnace without a filter for any length of time. With air constantly moving through your furnace and your home, dust and debris can quickly build up, even in a matter of minutes.
Step 1: Shut Off the Furnace
You should always avoid changing furnace filters while running the heating system, as various types of debris can enter the furnace — and you certainly don't want that to happen.
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.
How a dirty air filter can lead to CO poisoning. Here's the brief explanation: a clogged filter reduces air flow and causes your furnace heat exchanger to overheat and crack. Once the heat exchanger cracks, poisonous carbon monoxide can leak into your home.
Is my AC not working because of the filter? Potentially, yes. While there are a whole host of issues that could cause problems with your air conditioning system, a dirty air filter should be the first thing to check if your central air conditioning unit isn't working as properly as it should.
Air filters that are overdue for a change are a common cause of HVAC system failure. Over time, dirt builds up in the heating and AC filters, causing components such as the motor to go into overdrive, which may eventually overheat your unit.
A dirty filter in your furnace will generally lead to the following consequences: The furnace can overheat and turn off as a failsafe. Your home won't achieve the warmth or comfort you want. You can severely damage your furnace's internal components.
If you keep experiencing this situation in your home, we recommend you start with a whole-house duct cleaning to eliminate most of the excess dust and dirt in your home's HVAC system. Then, consult with one of our expert heating and cooling technicians to find the optimal filter for your HVAC system.
Reusable filters can be washed and replaced. However, the disposable filters you use in your HVAC system aren't made to shed water after they get wet. The moisture the filter retains can encourage mold growth over time, and your HVAC system might spread the mold spores throughout the rest of your home.
Replacing your car's air filter can cost anywhere from $20-$50, depending on the type of vehicle you have and the quality of filter. A high-quality filter will ensure better airflow, engine performance, and fuel economy — so it's worth investing in a reliable one!