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17 Jun 2019
3 Min Read

Are you fond of not changing air filters on time? If yes, then it is just a matter of time before your air conditioner breaks down. The main job of air filters is to protect the AC from harmful things that get sucked into the duct. Most people believe that the primary function of the air filter in the AC is to purify the air. However, that is not true. Air filters are not fine enough to successfully capture tiny air particles. However, they help to keep dirt and dust at bay. If you want to avoid unnecessary repair and keep your home air clean, then it is important to ensure that air filters in your AC are changed at least once after every 30-90 days depending on where you live and how frequently you use your AC. In this article, we are going to tell you what will happen if you don’t change your AC filters on time.

1. Your energy bill will go up

One big change that you will notice if you don’t change air filters on time is the sudden rise in your monthly energy bill. A clogged or dirty air filter will prevent the free flow of air in the AC. As a result, major components such as the condenser coil and the fan will be forced to work harder in order to keep your home cool. Extra work that the AC is forced to perform will ultimately increase your energy bill.

2. Wear and tear

Your AC will only last for a long period of time if it is well maintained. One crucial component that helps to prolong the lifespan of your air conditioner are the air filters. If air filters are not changed on time as recommended by air conditioning service experts, then dirt, dust, and debris will build on the crucial components of the unit including the fan, condenser coil, and the motor. This will accelerate the process of wear and tear, forcing you to spend a lot of money on the repair. In fact, if you don’t take action soon, you may be forced to replace your AC sooner than you expected.

3. Freezing

One of the main functions of the air filter is to allow free flow of air in and out of the AC. If air filters are clogged or dirty, then they will not allow free flow of air. This means that cold air inside the unit will not be allowed to flow out. This causes cool air to build up in the unit causing a drastic decrease in the unit internal temperature. If the problem is not fixed on time, the build-up of cold air can cause crucial internal components of the unit to freeze.

4. Poor indoor air quality

If air filters are clogged, then it means that they will not be able to trap dust, dirt, and debris. This will affect your indoor air quality because all dirt and dust that is pulled from the duct will be pushed to your home directly thus compromising the quality of air that you breathe. Poor indoor air quality is dangerous for people who have a breathing problem such as asthma. It can also cause chronic allergies.

Experts recommend that you should check your unit’s air filters at least once a month. If they are clogged or dirty, then they should be replaced immediately. If you don’t know how to check and replace your unit’s air filters, then you should call Quick Air at 1300 730 896, a reputable air conditioning service to do the work for you. Our expert technicians will ensure that the air filter is replaced correctly.


  1. https://www.cnet.com/how-to/how-often-you-should-change-your-ac-filter/
  2. https://www.consumerreports.org/cro/news/2012/07/dirty-air-conditioner-filters-can-make-you-lose-your-cool/index.htm