It's 90 degrees outside, your AC is running, and your house still feels like an oven. You check the thermostat — it's set to 72 — but the air coming out of the vents is barely cool. Sound familiar? This is one of the most common calls we get at BetterTemp Heating & Cooling, especially during peak summer heat in Western PA. The good news: some of these problems you can fix yourself in five minutes. Others need a technician. This guide will help you figure out which one you're