Air conditioning is certainly popular in homes throughout the United States. In fact, statistics show that nearly 87% of homes throughout the United States utilize air conditioning. Everything’s great while these systems are in working condition. Unfortunately, a lack of maintenance will eventually cause an air conditioner to stop working. In turn, you’re left having to make a call for an emergency repair. It’s understandable to want to avoid making those stressful emergency repair calls. Considering that, here are four smart monthly AC maintenance tips to follow. Avoid Ignoring Problematic Signs Fortunately, one of the best maintenance tips simply involves…