What Happens to a Heating and Cooling System When the Air Filter Isn’t Changed in Kitchener? Published on October 07, 2015 One of the most common concerns that we encounter at Hammond Plumbing & Heating in Kitchener is dusty air filters. They may seem like a very tiny piece of the overall home comfort puzzle, but the role they play in helping us control comfort is a lot bigger than most homeowners notice. Regardless if it is cooling season or heating season, having a filthy air filter can cause a variety of concerns for your heating and AC system. So what exactly happens when you don’t remember to change your air filter? Here are a just a few of the side effects you could encounter:Diminished airflow. This is easily the largest issue you’ll note when your home’s air filter is very clogged. The longer the air filter goes without being switched, the more dirt, dust and other particles build up. Of course, this prevents air from passing through the filter as it should, meaning your system is working a lot harder to give you the same amount of air.Frozen coil. If your system is operating harder due to a clogged air filter, you also run the risk of having the cooling coil freeze inside of the system, because it’s working overtime to leave you with cool air.Total loss of cooling or heating. This is also a probability if your air filter goes neglected for months and months on end. In essence, you will have worked your system so hard that something gives out or wears out and needs to be replaced or serviced.Short cycling. Short cycling means the heating and cooling system turns on and off more than it should. When your system short cycles, it could overheat or break down from the added work, which could end up causing damage to your system. In addition to these, you can also expect:A shortened equipment lifecycleReduced energy efficiencyDecreased air qualityIncrease in dust and debrisLack of comfort If you’re not sure when you last changed your air filter, it may be a good time to do so in order to avert any potential damage that might come with a filthy air filter. If you don’t know where your home’s air filter is located or you simply have a question about the number of air filters we carry, give Hammond Plumbing & Heating a call at 519-894-3222 or schedule an appointment online.