The HVAC unit is an essential part of either keeping your home comfortable all year long. The largest system within the unit is your furnace. It is imperative that your furnace is working properly, so it can keep your house warm during the harsh Illinois winters. No matter how old your unit is, you may run into issues such as your HVAC unit freezing up. If you’ve ever wondered why your unit icing up, here are a few common reasons why.
