Central air conditioners have one primary job: to keep you comfortable. If your AC doesn’t do this and it is appropriately sized for your home, something is wrong. You have heard the advice to change your filters, keep it cleaned, and to have a smart thermostat, but did you know that air conditioners may also need to recharge? If your system has malfunctioned or has been damaged, your refrigerant may need to be recharged. Here’s what you need to know about recharging a home AC.