A clogged filter will reduce the airflow returning to your furnace that will then be heated and delivered to your heat registers. This reduction in airflow causes the furnace to overheat and shut down due to safety concerns.
Don’t feel bad though if you are one of those many people who had to call for service only to fin out a clogged filter was the culprit. Our lives themselves are very hectic and it’s easy to forget about the filter duct away in the furnace. Generally your standard filter should be change every three months. This time line varies though deeding on the type of filter you have. I personally use a filter that only needs to be changed once a year. Others are reusable and simply need to be cleaned.
Always remember to point the arrow marked on the filter TOWARDS the furnace, as well, another good tip is to write the month it was installed directly on the filter to help you remember when it needs to be replaced.
As a husband, father, and co-owner of Family Plumbing and Heating, Brenden is an authentic and trustworthy contractor. He believes in providing the best quality service over maximizing profits and is dedicated to helping solve Regina's plumbing and HVAC problems.